Sea weather in Port St Johns in South Africa All the beach weather in Port St Johns
All the essential weather information for enjoying the beach in Port St Johns in South Africa, for swimming, tanning or water sports! Our sea weather data is reliable, easy to read and updated every day.
Weather: When should you go to the beach in Port St Johns over the next 7 days?
Discover the best moment to go to the beach in Port St Johns in South Africa this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Port St Johns. You can see full forecasts by clicking on the day you want to see in the table below.
| Date | Outside temp. | Max wind | Our opinion | Details |
|---|---|---|---|---|
| Friday 5 December 2025 | 67°F to 76°F | 20.5mph | discouraged | all the sea weather |
| Saturday 6 December 2025 | 67°F to 72°F | 11.8mph | discouraged | all the sea weather |
| Sunday 7 December 2025 | 67°F to 70°F | 18.6mph | discouraged | all the sea weather |
| Monday 8 December 2025 | 67°F to 76°F | 5.6mph | recommended | all the sea weather |
| Tuesday 9 December 2025 | 68°F to 77°F | 19.9mph | discouraged | all the sea weather |
| Wednesday 10 December 2025 | 67°F to 68°F | 10.6mph | discouraged | all the sea weather |
| Thursday 11 December 2025 | 67°F to 74°F | 28mph | not recommended | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Port St Johns
Sea weather on Friday 5 December 2025
On Friday 5 December 2025, the sun will rise at 04:50 and will set at 18:59 on the beach(es) of Port St Johns. The outside temperature will be a high of 76°F t and a low of 67°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 24.2mph km/h (with gusts up to 29.8mph). Wave height will be up to 6.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | |  |  |  |  | |  |
| Outside temperature | 20°C (67°F) | 19°C (66°F) | 20°C (68°F) | 24°C (74°F) | 24°C (75°F) | 24°C (74°F) | 23°C (73°F) | 22°C (72°F) |
| Perceived temperature | 20°C (67°F) | 19°C (66°F) | 20°C (68°F) | 25°C (77°F) | 26°C (78°F) | 26°C (78°F) | 25°C (77°F) | 25°C (76°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 84% | 85% | 78% | 63% | 71% | 79% | 82% | 82% |
| Barometric pressure | 1014 hPa | 1011 hPa | 1010 hPa | 1010 hPa | 1011 hPa | 1010 hPa | 1011 hPa | 1014 hPa |
| Cloud cover | 0% | 0% | 0% | 16% | 100% | 53% | 25% | 73% |
| Heat index | 20°C (67°F) | 19°C (66°F) | 20°C (68°F) | 25°C (77°F) | 26°C (78°F) | 26°C (78°F) | 25°C (77°F) | 25°C (76°F) |
| Dew point | 17°C (63°F) | 16°C (62°F) | 16°C (61°F) | 16°C (61°F) | 18°C (65°F) | 20°C (68°F) | 19°C (67°F) | 19°C (66°F) |
| Wind | ||||||||
| Speed | 26km/h (16mph) | 16km/h (10mph) | 13km/h (8mph) | 5km/h (3mph) | 35km/h (21mph) | 35km/h (22mph) | 39km/h (24mph) | 33km/h (21mph) |
| Gusts | 42km/h (26mph) | 26km/h (16mph) | 21km/h (13mph) | 7km/h (4mph) | 43km/h (27mph) | 46km/h (28mph) | 42km/h (26mph) | 48km/h (30mph) |
| Direction | 31° NNE | 20° NNE | 13° NNE | 147° SSE | 195° SSW | 203° SSW | 216° SW | 246° WSW |
| Wind chill | 20°C (67°F) | 19°C (66°F) | 20°C (68°F) | 24°C (74°F) | 24°C (75°F) | 24°C (74°F) | 23°C (73°F) | 22°C (72°F) |
| Waves | ||||||||
| Height | 1.9m (6.2ft) | 1.8m (5.9ft) | 1.7m (5.5ft) | 1.6m (5.1ft) | 1.5m (5.0ft) | 1.5m (5.1ft) | 1.8m (5.9ft) | 1.8m (5.9ft) |
| Direction | 186° S | 186° S | 186° S | 186° S | 186° S | 185° S | 185° S | 186° S |
| Period | 11.0 sec. | 10.9 sec. | 10.8 sec. | 10.6 sec. | 6.3 sec. | 10.3 sec. | 7.1 sec. | 10.0 sec. |
| Significant height | 1.0m (3.3ft) | 0.5m (1.6ft) | 0.3m (1ft) | 0.2m (0.7ft) | 1.5m (4.9ft) | 0.9m (3ft) | 1.5m (4.9ft) | 1.1m (3.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) |
Sea weather on Saturday 6 December 2025
On Saturday 6 December 2025, the sun will rise at 04:50 and will set at 19:00 on the beach(es) of Port St Johns. The outside temperature will be a high of 72°F t and a low of 67°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 16.8mph km/h (with gusts up to 24.9mph). Wave height will be up to 5.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | |  |
| Outside temperature | 21°C (70°F) | 20°C (68°F) | 20°C (67°F) | 22°C (71°F) | 22°C (71°F) | 22°C (71°F) | 20°C (69°F) | 20°C (68°F) |
| Perceived temperature | 21°C (70°F) | 20°C (68°F) | 20°C (67°F) | 22°C (71°F) | 22°C (71°F) | 22°C (71°F) | 20°C (69°F) | 20°C (68°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 83% | 83% | 83% | 74% | 73% | 73% | 84% | 81% |
| Barometric pressure | 1013 hPa | 1014 hPa | 1015 hPa | 1015 hPa | 1015 hPa | 1014 hPa | 1016 hPa | 1019 hPa |
| Cloud cover | 17% | 85% | 76% | 82% | 71% | 93% | 100% | 100% |
| Heat index | 24°C (76°F) | 20°C (68°F) | 20°C (67°F) | 24°C (76°F) | 25°C (76°F) | 25°C (76°F) | 20°C (69°F) | 20°C (68°F) |
| Dew point | 18°C (65°F) | 17°C (63°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 18°C (64°F) | 17°C (62°F) |
| Wind | ||||||||
| Speed | 27km/h (17mph) | 27km/h (17mph) | 22km/h (14mph) | 22km/h (14mph) | 27km/h (17mph) | 23km/h (14mph) | 21km/h (13mph) | 19km/h (12mph) |
| Gusts | 40km/h (25mph) | 39km/h (24mph) | 31km/h (19mph) | 28km/h (17mph) | 35km/h (22mph) | 31km/h (19mph) | 30km/h (19mph) | 27km/h (17mph) |
| Direction | 231° SW | 245° WSW | 243° WSW | 219° SW | 188° S | 183° S | 162° SSE | 177° S |
| Wind chill | 21°C (70°F) | 20°C (68°F) | 20°C (67°F) | 22°C (71°F) | 22°C (71°F) | 22°C (71°F) | 20°C (69°F) | 20°C (68°F) |
| Waves | ||||||||
| Height | 1.7m (5.5ft) | 1.7m (5.5ft) | 1.6m (5.3ft) | 1.6m (5.2ft) | 1.5m (5.0ft) | 1.4m (4.6ft) | 1.3m (4.3ft) | 1.3m (4.3ft) |
| Direction | 185° S | 184° S | 184° S | 184° S | 183° S | 183° S | 184° S | 186° S |
| Period | 9.8 sec. | 9.7 sec. | 7.7 sec. | 7.6 sec. | 9.3 sec. | 9.2 sec. | 9.2 sec. | 9.2 sec. |
| Significant height | 1.2m (3.9ft) | 1.0m (3.3ft) | 0.9m (3ft) | 0.9m (3ft) | 1.4m (4.6ft) | 1.3m (4.3ft) | 1.2m (3.9ft) | 1.1m (3.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) |
Sea weather on Sunday 7 December 2025
On Sunday 7 December 2025, the sun will rise at 04:50 and will set at 19:00 on the beach(es) of Port St Johns. The outside temperature will be a high of 70°F t and a low of 67°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 18.6mph km/h (with gusts up to 27.3mph). Wave height will be up to 4.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 20°C (68°F) | 20°C (67°F) | 19°C (67°F) | 19°C (67°F) | 20°C (68°F) | 21°C (69°F) | 21°C (70°F) | 21°C (70°F) |
| Perceived temperature | 20°C (68°F) | 20°C (67°F) | 19°C (67°F) | 19°C (67°F) | 20°C (68°F) | 21°C (69°F) | 21°C (70°F) | 21°C (70°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 77% | 76% | 75% | 75% | 75% | 76% | 79% | 81% |
| Barometric pressure | 1019 hPa | 1018 hPa | 1019 hPa | 1019 hPa | 1018 hPa | 1015 hPa | 1013 hPa | 1014 hPa |
| Cloud cover | 100% | 100% | 100% | 100% | 98% | 97% | 79% | 52% |
| Heat index | 20°C (68°F) | 20°C (67°F) | 19°C (67°F) | 19°C (67°F) | 20°C (68°F) | 21°C (69°F) | 21°C (70°F) | 24°C (76°F) |
| Dew point | 16°C (61°F) | 15°C (60°F) | 15°C (58°F) | 15°C (59°F) | 15°C (60°F) | 16°C (62°F) | 17°C (63°F) | 18°C (64°F) |
| Wind | ||||||||
| Speed | 15km/h (9mph) | 12km/h (8mph) | 10km/h (6mph) | 11km/h (7mph) | 18km/h (11mph) | 28km/h (17mph) | 30km/h (19mph) | 30km/h (19mph) |
| Gusts | 21km/h (13mph) | 17km/h (10mph) | 14km/h (8mph) | 15km/h (9mph) | 25km/h (15mph) | 37km/h (23mph) | 44km/h (27mph) | 43km/h (27mph) |
| Direction | 194° SSW | 185° S | 134° SE | 77° ENE | 62° ENE | 58° ENE | 56° NE | 46° NE |
| Wind chill | 20°C (68°F) | 20°C (67°F) | 19°C (67°F) | 19°C (67°F) | 20°C (68°F) | 21°C (69°F) | 21°C (70°F) | 21°C (70°F) |
| Waves | ||||||||
| Height | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.3m (4.2ft) | 1.2m (4.0ft) | 1.2m (3.9ft) | 1.2m (3.8ft) | 1.2m (3.9ft) | 1.2m (3.9ft) |
| Direction | 189° S | 191° S | 193° SSW | 196° SSW | 198° SSW | 201° SSW | 195° SSW | 196° SSW |
| Period | 9.3 sec. | 6.2 sec. | 6.4 sec. | 9.1 sec. | 9.0 sec. | 8.8 sec. | 8.7 sec. | 8.6 sec. |
| Significant height | 0.9m (3ft) | 0.5m (1.6ft) | 0.3m (1ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.5m (4.9ft) | 1.3m (4.3ft) | 1.1m (3.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) |
Sea weather on Monday 8 December 2025
On Monday 8 December 2025, the sun will rise at 04:50 and will set at 19:01 on the beach(es) of Port St Johns. The outside temperature will be a high of 76°F t and a low of 67°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 11.2mph km/h (with gusts up to 17.4mph). Wave height will be up to 4.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 20°C (68°F) | 19°C (66°F) | 20°C (68°F) | 22°C (72°F) | 23°C (74°F) | 24°C (75°F) | 23°C (74°F) | 23°C (74°F) |
| Perceived temperature | 20°C (68°F) | 19°C (66°F) | 20°C (68°F) | 25°C (76°F) | 25°C (77°F) | 26°C (78°F) | 25°C (78°F) | 25°C (78°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 87% | 86% | 81% | 74% | 72% | 81% | 85% | 91% |
| Barometric pressure | 1013 hPa | 1012 hPa | 1012 hPa | 1012 hPa | 1011 hPa | 1010 hPa | 1012 hPa | 1012 hPa |
| Cloud cover | 52% | 11% | 5% | 4% | 5% | 68% | 72% | 31% |
| Heat index | 20°C (68°F) | 19°C (66°F) | 20°C (68°F) | 25°C (76°F) | 25°C (77°F) | 26°C (78°F) | 25°C (78°F) | 25°C (78°F) |
| Dew point | 18°C (64°F) | 17°C (62°F) | 17°C (62°F) | 18°C (64°F) | 18°C (64°F) | 20°C (69°F) | 21°C (69°F) | 22°C (71°F) |
| Wind | ||||||||
| Speed | 15km/h (10mph) | 5km/h (3mph) | 9km/h (6mph) | 7km/h (4mph) | 13km/h (8mph) | 18km/h (11mph) | 17km/h (11mph) | 9km/h (6mph) |
| Gusts | 24km/h (15mph) | 8km/h (5mph) | 14km/h (9mph) | 9km/h (6mph) | 19km/h (12mph) | 26km/h (16mph) | 28km/h (17mph) | 15km/h (9mph) |
| Direction | 5° N | 318° NW | 351° N | 114° ESE | 100° E | 56° NE | 44° NE | 106° ESE |
| Wind chill | 20°C (68°F) | 19°C (66°F) | 20°C (68°F) | 22°C (72°F) | 23°C (74°F) | 24°C (75°F) | 23°C (74°F) | 23°C (74°F) |
| Waves | ||||||||
| Height | 1.2m (4.0ft) | 1.2m (4.1ft) | 1.3m (4.1ft) | 1.2m (4.1ft) | 1.2m (4.0ft) | 1.2m (4.0ft) | 1.2m (3.9ft) | 1.2m (3.9ft) |
| Direction | 208° SSW | 208° SSW | 208° SSW | 208° SSW | 208° SSW | 208° SSW | 209° SSW | 209° SSW |
| Period | 12.8 sec. | 12.6 sec. | 12.4 sec. | 12.2 sec. | 12.0 sec. | 11.9 sec. | 11.8 sec. | 11.7 sec. |
| Significant height | 1.5m (4.9ft) | 0.3m (1ft) | 0.1m (0.3ft) | 0.1m (0.3ft) | 0.3m (1ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.4m (1.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) |
Sea weather on Tuesday 9 December 2025
On Tuesday 9 December 2025, the sun will rise at 04:50 and will set at 19:02 on the beach(es) of Port St Johns. The outside temperature will be a high of 77°F t and a low of 68°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 19.9mph km/h (with gusts up to 24.2mph). Wave height will be up to 4.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 23°C (74°F) | 23°C (74°F) | 23°C (74°F) | 24°C (76°F) | 24°C (75°F) | 23°C (74°F) | 22°C (71°F) | 21°C (69°F) |
| Perceived temperature | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (80°F) | 26°C (79°F) | 26°C (78°F) | 22°C (71°F) | 21°C (69°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0.1in | 0in |
| Humidity | 91% | 91% | 87% | 84% | 85% | 87% | 91% | 85% |
| Barometric pressure | 1012 hPa | 1011 hPa | 1012 hPa | 1012 hPa | 1012 hPa | 1011 hPa | 1013 hPa | 1016 hPa |
| Cloud cover | 85% | 77% | 81% | 67% | 52% | 98% | 100% | 85% |
| Heat index | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (80°F) | 26°C (79°F) | 26°C (78°F) | 23°C (74°F) | 21°C (69°F) |
| Dew point | 22°C (71°F) | 22°C (71°F) | 21°C (70°F) | 21°C (70°F) | 21°C (70°F) | 21°C (70°F) | 20°C (68°F) | 18°C (64°F) |
| Wind | ||||||||
| Speed | 8km/h (5mph) | 5km/h (3mph) | 2km/h (1mph) | 8km/h (5mph) | 16km/h (10mph) | 17km/h (10mph) | 29km/h (18mph) | 32km/h (20mph) |
| Gusts | 12km/h (7mph) | 8km/h (5mph) | 3km/h (2mph) | 10km/h (6mph) | 22km/h (13mph) | 23km/h (15mph) | 38km/h (24mph) | 39km/h (24mph) |
| Direction | 81° E | 56° NE | 250° WSW | 164° SSE | 133° SE | 152° SSE | 182° S | 225° SW |
| Wind chill | 23°C (74°F) | 23°C (74°F) | 23°C (74°F) | 24°C (76°F) | 24°C (75°F) | 23°C (74°F) | 22°C (71°F) | 21°C (69°F) |
| Waves | ||||||||
| Height | 1.1m (3.7ft) | 1.0m (3.3ft) | 1.0m (3.2ft) | 1.0m (3.2ft) | 1.0m (3.3ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.3m (4.3ft) |
| Direction | 210° SSW | 209° SSW | 210° SSW | 210° SSW | 210° SSW | 210° SSW | 211° SSW | 212° SSW |
| Period | 11.6 sec. | 11.3 sec. | 11.5 sec. | 11.8 sec. | 12.1 sec. | 12.2 sec. | 10.4 sec. | 8.4 sec. |
| Significant height | 1.0m (3.3ft) | 0.8m (2.6ft) | 0.8m (2.6ft) | 0.9m (3ft) | 1.1m (3.6ft) | 1.4m (4.6ft) | 1.5m (4.9ft) | 1.4m (4.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 22°C (72°F) | 22°C (72°F) | 22°C (72°F) | 22°C (72°F) | 22°C (72°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) |
Sea weather on Wednesday 10 December 2025
On Wednesday 10 December 2025, the sun will rise at 04:50 and will set at 19:03 on the beach(es) of Port St Johns. The outside temperature will be a high of 68°F t and a low of 67°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 14.3mph km/h (with gusts up to 20.5mph). Wave height will be up to 6.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | |  | | | | | |
| Outside temperature | 21°C (69°F) | 20°C (68°F) | 20°C (67°F) | 20°C (68°F) | 20°C (68°F) | 19°C (67°F) | 19°C (66°F) | 19°C (66°F) |
| Perceived temperature | 21°C (69°F) | 20°C (68°F) | 20°C (67°F) | 20°C (68°F) | 20°C (68°F) | 19°C (67°F) | 19°C (66°F) | 19°C (66°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 81% | 78% | 79% | 83% | 81% | 81% | 79% | 79% |
| Barometric pressure | 1016 hPa | 1016 hPa | 1017 hPa | 1019 hPa | 1019 hPa | 1019 hPa | 1019 hPa | 1021 hPa |
| Cloud cover | 40% | 23% | 62% | 100% | 100% | 100% | 100% | 100% |
| Heat index | 21°C (69°F) | 20°C (68°F) | 20°C (67°F) | 20°C (68°F) | 20°C (68°F) | 19°C (67°F) | 19°C (66°F) | 19°C (66°F) |
| Dew point | 17°C (63°F) | 16°C (61°F) | 16°C (61°F) | 17°C (63°F) | 17°C (62°F) | 16°C (61°F) | 15°C (59°F) | 15°C (59°F) |
| Wind | ||||||||
| Speed | 23km/h (14mph) | 21km/h (13mph) | 21km/h (13mph) | 22km/h (14mph) | 21km/h (13mph) | 21km/h (13mph) | 19km/h (12mph) | 17km/h (10mph) |
| Gusts | 33km/h (21mph) | 32km/h (20mph) | 30km/h (19mph) | 30km/h (18mph) | 28km/h (18mph) | 30km/h (18mph) | 27km/h (17mph) | 23km/h (14mph) |
| Direction | 238° WSW | 238° WSW | 227° SW | 182° S | 141° SE | 128° SE | 118° ESE | 98° E |
| Wind chill | 21°C (69°F) | 20°C (68°F) | 20°C (67°F) | 20°C (68°F) | 20°C (68°F) | 19°C (67°F) | 19°C (66°F) | 19°C (66°F) |
| Waves | ||||||||
| Height | 1.4m (4.6ft) | 1.3m (4.3ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.3m (4.3ft) | 1.7m (5.6ft) | 1.9m (6.2ft) | 2.1m (6.9ft) |
| Direction | 213° SSW | 213° SSW | 214° SW | 213° SSW | 209° SSW | 203° SSW | 198° SSW | 194° SSW |
| Period | 11.6 sec. | 9.4 sec. | 7.4 sec. | 11.2 sec. | 11.8 sec. | 12.5 sec. | 13.4 sec. | 14.2 sec. |
| Significant height | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 0.8m (2.6ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) |
Sea weather on Thursday 11 December 2025
On Thursday 11 December 2025, the sun will rise at 04:50 and will set at 19:03 on the beach(es) of Port St Johns. The outside temperature will be a high of 74°F t and a low of 67°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! Be careful, the sea will be generally rough with a wind speed of up to 31.1mph km/h (with gusts up to 41mph). Wave height will be up to 9.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | |  | | | |
| Outside temperature | 19°C (66°F) | 19°C (67°F) | 20°C (68°F) | 21°C (70°F) | 22°C (72°F) | 23°C (73°F) | 22°C (72°F) | 22°C (71°F) |
| Perceived temperature | 19°C (66°F) | 19°C (67°F) | 20°C (68°F) | 21°C (70°F) | 25°C (76°F) | 25°C (77°F) | 25°C (76°F) | 22°C (71°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 78% | 79% | 82% | 80% | 78% | 77% | 80% | 82% |
| Barometric pressure | 1020 hPa | 1019 hPa | 1018 hPa | 1017 hPa | 1016 hPa | 1013 hPa | 1012 hPa | 1011 hPa |
| Cloud cover | 100% | 100% | 100% | 96% | 80% | 66% | 65% | 50% |
| Heat index | 19°C (66°F) | 19°C (67°F) | 21°C (70°F) | 24°C (76°F) | 25°C (76°F) | 25°C (77°F) | 25°C (76°F) | 24°C (76°F) |
| Dew point | 15°C (59°F) | 16°C (60°F) | 17°C (62°F) | 18°C (64°F) | 18°C (64°F) | 18°C (65°F) | 19°C (66°F) | 19°C (65°F) |
| Wind | ||||||||
| Speed | 17km/h (11mph) | 19km/h (12mph) | 26km/h (16mph) | 39km/h (24mph) | 46km/h (29mph) | 50km/h (31mph) | 49km/h (30mph) | 45km/h (28mph) |
| Gusts | 24km/h (15mph) | 27km/h (17mph) | 35km/h (22mph) | 49km/h (31mph) | 59km/h (37mph) | 66km/h (41mph) | 63km/h (39mph) | 49km/h (30mph) |
| Direction | 78° ENE | 54° NE | 49° NE | 51° NE | 54° NE | 57° ENE | 51° NE | 44° NE |
| Wind chill | 19°C (66°F) | 19°C (67°F) | 20°C (68°F) | 21°C (70°F) | 22°C (72°F) | 23°C (73°F) | 22°C (72°F) | 22°C (71°F) |
| Waves | ||||||||
| Height | 2.3m (7.5ft) | 2.5m (8.2ft) | 2.5m (8.2ft) | 2.4m (7.9ft) | 2.4m (7.9ft) | 2.8m (9.2ft) | 2.8m (9.2ft) | 2.5m (8.2ft) |
| Direction | 193° SSW | 194° SSW | 198° SSW | 157° SSE | 76° ENE | 73° ENE | 69° ENE | 72° ENE |
| Period | 14.4 sec. | 14.1 sec. | 13.6 sec. | 12.8 sec. | 12.0 sec. | 11.4 sec. | 10.1 sec. | 8.3 sec. |
| Significant height | 1.2m (3.9ft) | 1.5m (4.9ft) | 1.4m (4.6ft) | 1.4m (4.6ft) | 1.6m (5.2ft) | 2.0m (6.6ft) | 2.0m (6.6ft) | 1.1m (3.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) | 24°C (76°F) |