Sea weather in Groot-Jongensfontein in South Africa All the beach weather in Groot-Jongensfontein
All the essential weather information for enjoying the beach in Groot-Jongensfontein 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 Groot-Jongensfontein over the next 7 days?
Discover the best moment to go to the beach in Groot-Jongensfontein in South Africa this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Groot-Jongensfontein. 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 |
|---|---|---|---|---|
| Monday 15 December 2025 | 61°F to 72°F | 4.4mph | discouraged | all the sea weather |
| Tuesday 16 December 2025 | 63°F to 72°F | 9.9mph | discouraged | all the sea weather |
| Wednesday 17 December 2025 | 63°F to 68°F | 9.3mph | discouraged | all the sea weather |
| Thursday 18 December 2025 | 59°F to 68°F | 5.6mph | recommended | all the sea weather |
| Friday 19 December 2025 | 61°F to 72°F | 8.1mph | discouraged | all the sea weather |
| Saturday 20 December 2025 | 63°F to 70°F | 13.1mph | discouraged | all the sea weather |
| Sunday 21 December 2025 | 65°F to 74°F | 20.5mph | discouraged | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Groot-Jongensfontein
Sea weather on Monday 15 December 2025
On Monday 15 December 2025, the sun will rise at 05:19 and will set at 19:46 on the beach(es) of Groot-Jongensfontein. The outside temperature will be a high of 72°F t and a low of 61°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 13.1mph km/h (with gusts up to 23.6mph). Wave height will be up to 5.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | |  | | | | |  |
| Outside temperature | 17°C (63°F) | 16°C (61°F) | 16°C (62°F) | 20°C (69°F) | 21°C (70°F) | 20°C (68°F) | 17°C (63°F) | 19°C (66°F) |
| Perceived temperature | 17°C (63°F) | 16°C (61°F) | 16°C (62°F) | 20°C (69°F) | 21°C (70°F) | 20°C (68°F) | 17°C (63°F) | 19°C (66°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 67% | 71% | 69% | 51% | 46% | 48% | 60% | 74% |
| Barometric pressure | 1016 hPa | 1014 hPa | 1014 hPa | 1013 hPa | 1012 hPa | 1010 hPa | 1011 hPa | 1012 hPa |
| Cloud cover | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 8% |
| Heat index | 17°C (63°F) | 16°C (61°F) | 16°C (62°F) | 20°C (69°F) | 24°C (75°F) | 20°C (68°F) | 17°C (63°F) | 19°C (66°F) |
| Dew point | 11°C (52°F) | 11°C (51°F) | 11°C (51°F) | 10°C (50°F) | 9°C (48°F) | 9°C (48°F) | 10°C (49°F) | 14°C (58°F) |
| Wind | ||||||||
| Speed | 6km/h (4mph) | 3km/h (2mph) | 1km/h (1mph) | 5km/h (3mph) | 15km/h (9mph) | 21km/h (13mph) | 15km/h (9mph) | 7km/h (4mph) |
| Gusts | 9km/h (6mph) | 6km/h (3mph) | 2km/h (1mph) | 6km/h (4mph) | 24km/h (15mph) | 38km/h (24mph) | 32km/h (20mph) | 11km/h (7mph) |
| Direction | 42° NE | 57° ENE | 87° E | 126° SE | 165° SSE | 164° SSE | 161° SSE | 108° ESE |
| Wind chill | 17°C (63°F) | 16°C (61°F) | 16°C (62°F) | 20°C (69°F) | 21°C (70°F) | 20°C (68°F) | 17°C (63°F) | 19°C (66°F) |
| Waves | ||||||||
| Height | 1.4m (4.7ft) | 1.4m (4.8ft) | 1.5m (4.9ft) | 1.5m (5.0ft) | 1.5m (5.1ft) | 1.6m (5.1ft) | 1.5m (5.1ft) | 1.5m (4.9ft) |
| Direction | 215° SW | 217° SW | 217° SW | 216° SW | 217° SW | 218° SW | 218° SW | 220° SW |
| Period | 11.5 sec. | 11.4 sec. | 11.4 sec. | 12.0 sec. | 12.1 sec. | 12.2 sec. | 12.4 sec. | 12.5 sec. |
| Significant height | 0.1m (0.3ft) | 0.1m (0.3ft) | 0.5m (1.6ft) | 0.1m (0.3ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.1m (0.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 19°C (65°F) | 19°C (65°F) | 19°C (65°F) | 19°C (65°F) | 19°C (65°F) | 19°C (65°F) | 19°C (65°F) | 19°C (65°F) |
Sea weather on Tuesday 16 December 2025
On Tuesday 16 December 2025, the sun will rise at 05:19 and will set at 19:46 on the beach(es) of Groot-Jongensfontein. The outside temperature will be a high of 72°F t and a low of 63°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 22.4mph km/h (with gusts up to 31.7mph). Wave height will be up to 4.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | |  | | |
| Outside temperature | 18°C (65°F) | 17°C (63°F) | 17°C (63°F) | 21°C (70°F) | 22°C (72°F) | 21°C (70°F) | 20°C (68°F) | 20°C (68°F) |
| Perceived temperature | 18°C (65°F) | 17°C (63°F) | 17°C (63°F) | 21°C (70°F) | 24°C (76°F) | 21°C (70°F) | 20°C (68°F) | 20°C (68°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 75% | 71% | 67% | 52% | 46% | 66% | 67% | 78% |
| Barometric pressure | 1011 hPa | 1009 hPa | 1008 hPa | 1008 hPa | 1007 hPa | 1006 hPa | 1006 hPa | 1009 hPa |
| Cloud cover | 0% | 0% | 0% | 0% | 0% | 4% | 4% | 6% |
| Heat index | 18°C (65°F) | 17°C (63°F) | 17°C (63°F) | 24°C (76°F) | 24°C (76°F) | 21°C (70°F) | 20°C (68°F) | 20°C (68°F) |
| Dew point | 14°C (56°F) | 12°C (53°F) | 11°C (52°F) | 11°C (52°F) | 10°C (50°F) | 14°C (58°F) | 14°C (57°F) | 16°C (61°F) |
| Wind | ||||||||
| Speed | 7km/h (4mph) | 5km/h (3mph) | 3km/h (2mph) | 3km/h (2mph) | 15km/h (9mph) | 36km/h (23mph) | 26km/h (16mph) | 16km/h (10mph) |
| Gusts | 11km/h (7mph) | 9km/h (6mph) | 5km/h (3mph) | 4km/h (2mph) | 25km/h (15mph) | 51km/h (32mph) | 29km/h (18mph) | 24km/h (15mph) |
| Direction | 66° ENE | 77° ENE | 65° ENE | 155° SSE | 188° S | 207° SSW | 205° SSW | 215° SW |
| Wind chill | 18°C (65°F) | 17°C (63°F) | 17°C (63°F) | 21°C (70°F) | 22°C (72°F) | 21°C (70°F) | 20°C (68°F) | 20°C (68°F) |
| Waves | ||||||||
| Height | 1.4m (4.6ft) | 1.3m (4.4ft) | 1.3m (4.2ft) | 1.2m (4.0ft) | 1.2m (3.8ft) | 1.2m (4.0ft) | 1.3m (4.2ft) | 1.1m (3.6ft) |
| Direction | 221° SW | 222° SW | 223° SW | 224° SW | 225° SW | 227° SW | 229° SW | 230° SW |
| Period | 12.5 sec. | 12.5 sec. | 12.3 sec. | 12.2 sec. | 12.0 sec. | 11.8 sec. | 11.7 sec. | 11.7 sec. |
| Significant height | 0.2m (0.7ft) | 0.1m (0.3ft) | 0.2m (0.7ft) | 0.3m (1ft) | 0.5m (1.6ft) | 1.0m (3.3ft) | 0.7m (2.3ft) | 0.3m (1ft) |
| Sea water temperature | ||||||||
| Water temperature | 19°C (65°F) | 19°C (65°F) | 19°C (65°F) | 19°C (65°F) | 19°C (65°F) | 19°C (65°F) | 19°C (65°F) | 19°C (65°F) |
Sea weather on Wednesday 17 December 2025
On Wednesday 17 December 2025, the sun will rise at 05:19 and will set at 19:47 on the beach(es) of Groot-Jongensfontein. The outside temperature will be a high of 68°F t and a low of 63°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 17.4mph km/h (with gusts up to 23.6mph). Wave height will be up to 5.9ft 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 (66°F) | 19°C (66°F) | 19°C (66°F) | 18°C (64°F) | 18°C (64°F) | 17°C (63°F) |
| Perceived temperature | 20°C (68°F) | 20°C (67°F) | 19°C (66°F) | 19°C (66°F) | 19°C (66°F) | 18°C (64°F) | 18°C (64°F) | 17°C (63°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 74% | 78% | 76% | 67% | 64% | 60% | 61% | 61% |
| Barometric pressure | 1009 hPa | 1010 hPa | 1013 hPa | 1015 hPa | 1016 hPa | 1017 hPa | 1018 hPa | 1020 hPa |
| Cloud cover | 71% | 53% | 100% | 92% | 100% | 100% | 94% | 92% |
| Heat index | 20°C (68°F) | 20°C (67°F) | 19°C (66°F) | 19°C (66°F) | 19°C (66°F) | 18°C (64°F) | 18°C (64°F) | 17°C (63°F) |
| Dew point | 15°C (59°F) | 16°C (60°F) | 14°C (58°F) | 12°C (54°F) | 12°C (53°F) | 10°C (50°F) | 10°C (50°F) | 10°C (49°F) |
| Wind | ||||||||
| Speed | 11km/h (7mph) | 28km/h (17mph) | 26km/h (16mph) | 22km/h (14mph) | 23km/h (14mph) | 24km/h (15mph) | 16km/h (10mph) | 15km/h (9mph) |
| Gusts | 17km/h (10mph) | 38km/h (24mph) | 35km/h (22mph) | 28km/h (18mph) | 29km/h (18mph) | 32km/h (20mph) | 22km/h (14mph) | 21km/h (13mph) |
| Direction | 293° WNW | 257° WSW | 219° SW | 218° SW | 195° SSW | 195° SSW | 184° S | 177° S |
| Wind chill | 20°C (68°F) | 20°C (67°F) | 19°C (66°F) | 19°C (66°F) | 19°C (66°F) | 18°C (64°F) | 18°C (64°F) | 17°C (63°F) |
| Waves | ||||||||
| Height | 1.1m (3.5ft) | 1.1m (3.6ft) | 1.6m (5.2ft) | 1.6m (5.3ft) | 1.7m (5.5ft) | 1.8m (5.8ft) | 1.7m (5.6ft) | 1.6m (5.4ft) |
| Direction | 231° SW | 230° SW | 213° SSW | 214° SSW | 212° SSW | 209° SSW | 206° SSW | 201° SSW |
| Period | 11.6 sec. | 8.2 sec. | 14.2 sec. | 13.7 sec. | 13.4 sec. | 13.4 sec. | 13.0 sec. | 9.2 sec. |
| Significant height | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.3m (4.3ft) | 0.9m (3ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 0.9m (3ft) | 0.5m (1.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) |
Sea weather on Thursday 18 December 2025
On Thursday 18 December 2025, the sun will rise at 05:20 and will set at 19:47 on the beach(es) of Groot-Jongensfontein. The outside temperature will be a high of 68°F t and a low of 59°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 11.8mph km/h (with gusts up to 21.8mph). 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 | 17°C (62°F) | 16°C (60°F) | 16°C (61°F) | 19°C (66°F) | 19°C (66°F) | 19°C (65°F) | 19°C (66°F) | 18°C (65°F) |
| Perceived temperature | 17°C (62°F) | 16°C (60°F) | 16°C (61°F) | 19°C (66°F) | 19°C (66°F) | 19°C (65°F) | 19°C (66°F) | 18°C (65°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 59% | 61% | 59% | 45% | 42% | 43% | 51% | 61% |
| Barometric pressure | 1020 hPa | 1020 hPa | 1021 hPa | 1021 hPa | 1020 hPa | 1019 hPa | 1020 hPa | 1022 hPa |
| Cloud cover | 54% | 50% | 13% | 1% | 0% | 0% | 14% | 2% |
| Heat index | 17°C (62°F) | 16°C (60°F) | 16°C (61°F) | 19°C (66°F) | 19°C (66°F) | 19°C (65°F) | 19°C (66°F) | 18°C (65°F) |
| Dew point | 9°C (48°F) | 8°C (47°F) | 8°C (46°F) | 7°C (44°F) | 6°C (42°F) | 6°C (43°F) | 8°C (47°F) | 10°C (51°F) |
| Wind | ||||||||
| Speed | 5km/h (3mph) | 2km/h (1mph) | 4km/h (2mph) | 5km/h (3mph) | 15km/h (9mph) | 19km/h (12mph) | 17km/h (11mph) | 9km/h (6mph) |
| Gusts | 8km/h (5mph) | 3km/h (2mph) | 6km/h (4mph) | 7km/h (4mph) | 24km/h (15mph) | 35km/h (22mph) | 25km/h (16mph) | 14km/h (9mph) |
| Direction | 152° SSE | 124° SE | 78° ENE | 129° SE | 149° SSE | 151° SSE | 151° SSE | 137° SE |
| Wind chill | 17°C (62°F) | 16°C (60°F) | 16°C (61°F) | 19°C (66°F) | 19°C (66°F) | 19°C (65°F) | 19°C (66°F) | 18°C (65°F) |
| Waves | ||||||||
| Height | 1.7m (5.4ft) | 1.7m (5.5ft) | 1.6m (5.4ft) | 1.5m (5.1ft) | 1.5m (4.9ft) | 1.5m (5.0ft) | 1.5m (5.0ft) | 1.5m (4.9ft) |
| Direction | 195° SSW | 187° S | 186° S | 182° S | 181° S | 185° S | 189° S | 191° SSW |
| Period | 9.3 sec. | 9.4 sec. | 9.2 sec. | 9.1 sec. | 9.0 sec. | 8.8 sec. | 9.5 sec. | 11.1 sec. |
| Significant height | 0.3m (1ft) | 0.3m (1ft) | 0.2m (0.7ft) | 0.2m (0.7ft) | 0.3m (1ft) | 0.6m (2ft) | 1.3m (4.3ft) | 0.4m (1.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) |
Sea weather on Friday 19 December 2025
On Friday 19 December 2025, the sun will rise at 05:20 and will set at 19:48 on the beach(es) of Groot-Jongensfontein. The outside temperature will be a high of 72°F t and a low of 61°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 13.7mph km/h (with gusts up to 21.8mph). 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 | 17°C (63°F) | 16°C (61°F) | 16°C (61°F) | 21°C (69°F) | 21°C (71°F) | 20°C (67°F) | 19°C (66°F) | 19°C (66°F) |
| Perceived temperature | 17°C (63°F) | 16°C (61°F) | 16°C (61°F) | 21°C (69°F) | 21°C (71°F) | 20°C (67°F) | 19°C (66°F) | 19°C (66°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 66% | 68% | 67% | 50% | 45% | 53% | 63% | 74% |
| Barometric pressure | 1021 hPa | 1019 hPa | 1019 hPa | 1019 hPa | 1017 hPa | 1016 hPa | 1017 hPa | 1018 hPa |
| Cloud cover | 1% | 2% | 2% | 1% | 0% | 0% | 3% | 8% |
| Heat index | 17°C (63°F) | 16°C (61°F) | 16°C (61°F) | 21°C (69°F) | 24°C (76°F) | 20°C (67°F) | 19°C (66°F) | 19°C (66°F) |
| Dew point | 11°C (52°F) | 10°C (51°F) | 10°C (50°F) | 10°C (50°F) | 9°C (49°F) | 10°C (50°F) | 11°C (52°F) | 14°C (58°F) |
| Wind | ||||||||
| Speed | 7km/h (4mph) | 5km/h (3mph) | 6km/h (4mph) | 11km/h (7mph) | 19km/h (12mph) | 22km/h (14mph) | 18km/h (11mph) | 13km/h (8mph) |
| Gusts | 11km/h (7mph) | 8km/h (5mph) | 10km/h (6mph) | 13km/h (8mph) | 30km/h (19mph) | 35km/h (22mph) | 23km/h (15mph) | 19km/h (12mph) |
| Direction | 69° ENE | 33° NNE | 71° ENE | 108° ESE | 132° SE | 140° SE | 135° SE | 113° ESE |
| Wind chill | 17°C (63°F) | 16°C (61°F) | 16°C (61°F) | 21°C (69°F) | 21°C (71°F) | 20°C (67°F) | 19°C (66°F) | 19°C (66°F) |
| Waves | ||||||||
| Height | 1.4m (4.7ft) | 1.7m (5.7ft) | 1.7m (5.6ft) | 1.7m (5.6ft) | 1.7m (5.6ft) | 1.7m (5.6ft) | 1.6m (5.2ft) | 1.5m (4.9ft) |
| Direction | 192° SSW | 162° SSE | 162° SSE | 161° SSE | 162° SSE | 164° SSE | 165° SSE | 167° SSE |
| Period | 11.2 sec. | 10.9 sec. | 10.9 sec. | 10.8 sec. | 10.7 sec. | 10.4 sec. | 10.3 sec. | 10.2 sec. |
| Significant height | 0.5m (1.6ft) | 0.7m (2.3ft) | 0.8m (2.6ft) | 1.0m (3.3ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 0.9m (3ft) | 0.8m (2.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 19°C (65°F) | 19°C (65°F) | 19°C (65°F) | 19°C (65°F) | 19°C (65°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) |
Sea weather on Saturday 20 December 2025
On Saturday 20 December 2025, the sun will rise at 05:21 and will set at 19:48 on the beach(es) of Groot-Jongensfontein. The outside temperature will be a high of 70°F t and a low of 63°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 21.1mph). Wave height will be up to 5.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 18°C (65°F) | 18°C (64°F) | 18°C (65°F) | 20°C (69°F) | 21°C (69°F) | 19°C (67°F) | 19°C (66°F) | 19°C (67°F) |
| Perceived temperature | 18°C (65°F) | 18°C (64°F) | 18°C (65°F) | 20°C (69°F) | 21°C (69°F) | 19°C (67°F) | 19°C (66°F) | 19°C (67°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 79% | 82% | 79% | 66% | 60% | 62% | 68% | 80% |
| Barometric pressure | 1018 hPa | 1016 hPa | 1016 hPa | 1016 hPa | 1014 hPa | 1013 hPa | 1013 hPa | 1014 hPa |
| Cloud cover | 5% | 5% | 12% | 12% | 0% | 0% | 2% | 9% |
| Heat index | 18°C (65°F) | 18°C (64°F) | 18°C (65°F) | 20°C (69°F) | 21°C (69°F) | 19°C (67°F) | 19°C (66°F) | 19°C (67°F) |
| Dew point | 15°C (58°F) | 15°C (58°F) | 14°C (58°F) | 14°C (57°F) | 12°C (54°F) | 12°C (53°F) | 13°C (55°F) | 16°C (60°F) |
| Wind | ||||||||
| Speed | 9km/h (6mph) | 9km/h (6mph) | 13km/h (8mph) | 19km/h (12mph) | 25km/h (15mph) | 30km/h (19mph) | 27km/h (17mph) | 21km/h (13mph) |
| Gusts | 15km/h (9mph) | 15km/h (9mph) | 18km/h (11mph) | 25km/h (16mph) | 34km/h (21mph) | 33km/h (20mph) | 31km/h (19mph) | 30km/h (19mph) |
| Direction | 93° E | 90° E | 95° E | 105° ESE | 119° ESE | 126° SE | 121° ESE | 109° ESE |
| Wind chill | 18°C (65°F) | 18°C (64°F) | 18°C (65°F) | 20°C (69°F) | 21°C (69°F) | 19°C (67°F) | 19°C (66°F) | 19°C (67°F) |
| Waves | ||||||||
| Height | 1.4m (4.6ft) | 1.4m (4.6ft) | 1.4m (4.6ft) | 1.4m (4.6ft) | 1.5m (4.9ft) | 1.7m (5.6ft) | 1.7m (5.6ft) | 1.8m (5.9ft) |
| Direction | 171° S | 175° S | 184° S | 196° SSW | 198° SSW | 201° SSW | 203° SSW | 206° SSW |
| Period | 10.2 sec. | 10.8 sec. | 11.9 sec. | 12.0 sec. | 12.0 sec. | 12.0 sec. | 12.0 sec. | 12.1 sec. |
| Significant height | 0.8m (2.6ft) | 0.9m (3ft) | 0.9m (3ft) | 0.8m (2.6ft) | 1.1m (3.6ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.1m (3.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) |
Sea weather on Sunday 21 December 2025
On Sunday 21 December 2025, the sun will rise at 05:21 and will set at 19:49 on the beach(es) of Groot-Jongensfontein. The outside temperature will be a high of 74°F t and a low of 65°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 21.8mph km/h (with gusts up to 29.8mph). 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 | 19°C (65°F) | 18°C (65°F) | 19°C (66°F) | 21°C (69°F) | 22°C (71°F) | 22°C (71°F) | 20°C (67°F) | 20°C (68°F) |
| Perceived temperature | 19°C (65°F) | 18°C (65°F) | 19°C (66°F) | 21°C (69°F) | 22°C (71°F) | 22°C (71°F) | 20°C (67°F) | 20°C (68°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 85% | 87% | 81% | 66% | 59% | 60% | 68% | 81% |
| Barometric pressure | 1014 hPa | 1013 hPa | 1013 hPa | 1013 hPa | 1013 hPa | 1012 hPa | 1011 hPa | 1012 hPa |
| Cloud cover | 23% | 38% | 38% | 17% | 5% | 9% | 4% | 30% |
| Heat index | 19°C (65°F) | 18°C (65°F) | 19°C (66°F) | 22°C (71°F) | 25°C (76°F) | 23°C (74°F) | 20°C (67°F) | 20°C (68°F) |
| Dew point | 16°C (61°F) | 16°C (60°F) | 15°C (60°F) | 14°C (58°F) | 14°C (56°F) | 14°C (57°F) | 14°C (56°F) | 17°C (62°F) |
| Wind | ||||||||
| Speed | 16km/h (10mph) | 15km/h (9mph) | 19km/h (12mph) | 26km/h (16mph) | 32km/h (20mph) | 35km/h (22mph) | 35km/h (21mph) | 33km/h (20mph) |
| Gusts | 25km/h (15mph) | 24km/h (15mph) | 27km/h (17mph) | 34km/h (21mph) | 45km/h (28mph) | 40km/h (25mph) | 41km/h (26mph) | 48km/h (30mph) |
| Direction | 91° E | 91° E | 103° ESE | 105° ESE | 113° ESE | 112° ESE | 107° ESE | 96° E |
| Wind chill | 19°C (65°F) | 18°C (65°F) | 19°C (66°F) | 21°C (69°F) | 22°C (71°F) | 22°C (71°F) | 20°C (67°F) | 20°C (68°F) |
| Waves | ||||||||
| Height | 1.8m (5.9ft) | 1.9m (6.2ft) | 2.0m (6.6ft) | 2.0m (6.6ft) | 1.9m (6.2ft) | 2.0m (6.6ft) | 2.0m (6.6ft) | 2.1m (6.9ft) |
| Direction | 206° SSW | 202° SSW | 199° SSW | 198° SSW | 198° SSW | 200° SSW | 204° SSW | 205° SSW |
| Period | 12.0 sec. | 12.7 sec. | 14.7 sec. | 14.6 sec. | 14.4 sec. | 13.8 sec. | 12.7 sec. | 12.1 sec. |
| Significant height | 1.2m (3.9ft) | 1.2m (3.9ft) | 0.9m (3ft) | 0.7m (2.3ft) | 0.9m (3ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.0m (3.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) |