Sea weather in Knysna in South Africa All the beach weather in Knysna
All the essential weather information for enjoying the beach in Knysna 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 Knysna over the next 7 days?
Discover the best moment to go to the beach in Knysna in South Africa this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Knysna. 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 |
|---|---|---|---|---|
| Sunday 14 December 2025 | 59°F to 65°F | 9.3mph | recommended | all the sea weather |
| Monday 15 December 2025 | 61°F to 68°F | 7.5mph | recommended | all the sea weather |
| Tuesday 16 December 2025 | 67°F to 70°F | 6.2mph | recommended | all the sea weather |
| Wednesday 17 December 2025 | 61°F to 68°F | 18.6mph | not recommended | all the sea weather |
| Thursday 18 December 2025 | 61°F to 67°F | 6.2mph | discouraged | all the sea weather |
| Friday 19 December 2025 | 63°F to 67°F | 3.1mph | recommended | all the sea weather |
| Saturday 20 December 2025 | 63°F to 68°F | 25.5mph | not recommended | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Knysna
Sea weather on Sunday 14 December 2025
On Sunday 14 December 2025, the sun will rise at 05:11 and will set at 19:36 on the beach(es) of Knysna. The outside temperature will be a high of 65°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 10.6mph km/h (with gusts up to 20.5mph). Wave height will be up to 9.8ft 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) | 17°C (62°F) | 16°C (61°F) | 18°C (64°F) | 18°C (64°F) | 16°C (61°F) | 15°C (60°F) | 18°C (64°F) |
| Perceived temperature | 17°C (63°F) | 17°C (62°F) | 16°C (61°F) | 18°C (64°F) | 18°C (64°F) | 16°C (61°F) | 15°C (60°F) | 18°C (64°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 60% | 64% | 67% | 60% | 62% | 62% | 63% | 70% |
| Barometric pressure | 1023 hPa | 1020 hPa | 1020 hPa | 1019 hPa | 1018 hPa | 1016 hPa | 1015 hPa | 1016 hPa |
| Cloud cover | 48% | 8% | 94% | 11% | 6% | 0% | 0% | 0% |
| Heat index | 17°C (63°F) | 17°C (62°F) | 16°C (61°F) | 18°C (64°F) | 18°C (64°F) | 16°C (61°F) | 15°C (60°F) | 18°C (64°F) |
| Dew point | 9°C (48°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (51°F) | 9°C (48°F) | 8°C (47°F) | 13°C (55°F) |
| Wind | ||||||||
| Speed | 2km/h (1mph) | 6km/h (4mph) | 8km/h (5mph) | 4km/h (3mph) | 15km/h (10mph) | 16km/h (10mph) | 17km/h (11mph) | 15km/h (10mph) |
| Gusts | 3km/h (2mph) | 9km/h (6mph) | 11km/h (7mph) | 6km/h (4mph) | 23km/h (14mph) | 33km/h (21mph) | 21km/h (13mph) | 24km/h (15mph) |
| Direction | 51° NE | 2° N | 29° NNE | 104° ESE | 137° SE | 124° ESE | 107° ESE | 78° ENE |
| Wind chill | 17°C (63°F) | 17°C (62°F) | 16°C (61°F) | 18°C (64°F) | 18°C (64°F) | 16°C (61°F) | 15°C (60°F) | 18°C (64°F) |
| Waves | ||||||||
| Height | 3.0m (9.8ft) | 2.8m (9.3ft) | 2.7m (8.9ft) | 2.6m (8.5ft) | 2.5m (8.2ft) | 2.4m (7.8ft) | 2.3m (7.5ft) | 2.2m (7.4ft) |
| Direction | 226° SW | 226° SW | 226° SW | 225° SW | 224° SW | 226° SW | 225° SW | 224° SW |
| Period | 12.4 sec. | 12.4 sec. | 12.4 sec. | 12.4 sec. | 12.3 sec. | 12.0 sec. | 11.8 sec. | 11.7 sec. |
| Significant height | 0.1m (0.3ft) | 0.1m (0.3ft) | 0.1m (0.3ft) | 0.1m (0.3ft) | 0.3m (1ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.4m (1.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) |
Sea weather on Monday 15 December 2025
On Monday 15 December 2025, the sun will rise at 05:11 and will set at 19:36 on the beach(es) of Knysna. The outside temperature will be a high of 68°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 10.6mph km/h (with gusts up to 19.3mph). 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 | 18°C (64°F) | 17°C (63°F) | 18°C (64°F) | 19°C (67°F) | 18°C (64°F) | 18°C (64°F) | 17°C (62°F) | 19°C (66°F) |
| Perceived temperature | 18°C (64°F) | 17°C (63°F) | 18°C (64°F) | 19°C (67°F) | 18°C (64°F) | 18°C (64°F) | 17°C (62°F) | 19°C (66°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 71% | 70% | 70% | 66% | 69% | 69% | 74% | 83% |
| Barometric pressure | 1016 hPa | 1013 hPa | 1013 hPa | 1012 hPa | 1011 hPa | 1009 hPa | 1009 hPa | 1011 hPa |
| Cloud cover | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 23% |
| Heat index | 18°C (64°F) | 17°C (63°F) | 18°C (64°F) | 19°C (67°F) | 18°C (64°F) | 18°C (64°F) | 17°C (62°F) | 19°C (66°F) |
| Dew point | 12°C (54°F) | 12°C (53°F) | 12°C (54°F) | 13°C (55°F) | 12°C (54°F) | 12°C (53°F) | 12°C (54°F) | 16°C (61°F) |
| Wind | ||||||||
| Speed | 8km/h (5mph) | 4km/h (2mph) | 3km/h (2mph) | 4km/h (3mph) | 14km/h (9mph) | 15km/h (9mph) | 17km/h (11mph) | 12km/h (7mph) |
| Gusts | 11km/h (7mph) | 6km/h (3mph) | 5km/h (3mph) | 6km/h (3mph) | 26km/h (16mph) | 31km/h (19mph) | 23km/h (14mph) | 19km/h (12mph) |
| Direction | 83° E | 355° N | 190° S | 125° SE | 155° SSE | 143° SE | 118° ESE | 112° ESE |
| Wind chill | 18°C (64°F) | 17°C (63°F) | 18°C (64°F) | 19°C (67°F) | 18°C (64°F) | 18°C (64°F) | 17°C (62°F) | 19°C (66°F) |
| Waves | ||||||||
| Height | 2.4m (7.7ft) | 2.5m (8.3ft) | 2.6m (8.6ft) | 2.6m (8.7ft) | 2.7m (8.9ft) | 2.8m (9.1ft) | 2.8m (9.2ft) | 2.8m (9.1ft) |
| Direction | 222° SW | 221° SW | 220° SW | 221° SW | 221° SW | 222° SW | 221° SW | 222° SW |
| Period | 11.8 sec. | 11.8 sec. | 11.8 sec. | 11.8 sec. | 12.0 sec. | 12.2 sec. | 12.3 sec. | 12.4 sec. |
| Significant height | 0.3m (1ft) | 0.1m (0.3ft) | 0.1m (0.3ft) | 1.0m (3.3ft) | 0.3m (1ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.4m (1.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) |
Sea weather on Tuesday 16 December 2025
On Tuesday 16 December 2025, the sun will rise at 05:11 and will set at 19:37 on the beach(es) of Knysna. 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 9.9mph km/h (with gusts up to 13.7mph). Wave height will be up to 8.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | |  | | | | | |
| Outside temperature | 19°C (66°F) | 19°C (65°F) | 19°C (66°F) | 20°C (69°F) | 21°C (69°F) | 21°C (70°F) | 20°C (67°F) | 20°C (68°F) |
| Perceived temperature | 19°C (66°F) | 19°C (65°F) | 19°C (66°F) | 20°C (69°F) | 21°C (69°F) | 21°C (70°F) | 20°C (67°F) | 20°C (68°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 86% | 90% | 91% | 86% | 86% | 83% | 83% | 80% |
| Barometric pressure | 1010 hPa | 1007 hPa | 1006 hPa | 1005 hPa | 1004 hPa | 1004 hPa | 1005 hPa | 1005 hPa |
| Cloud cover | 49% | 37% | 86% | 39% | 82% | 89% | 88% | 3% |
| Heat index | 19°C (66°F) | 19°C (65°F) | 19°C (66°F) | 20°C (69°F) | 21°C (69°F) | 21°C (70°F) | 20°C (67°F) | 20°C (68°F) |
| Dew point | 17°C (62°F) | 17°C (62°F) | 17°C (63°F) | 18°C (64°F) | 18°C (65°F) | 18°C (64°F) | 17°C (62°F) | 16°C (62°F) |
| Wind | ||||||||
| Speed | 8km/h (5mph) | 12km/h (7mph) | 10km/h (6mph) | 12km/h (7mph) | 16km/h (10mph) | 10km/h (6mph) | 12km/h (7mph) | 10km/h (6mph) |
| Gusts | 12km/h (8mph) | 18km/h (11mph) | 15km/h (9mph) | 16km/h (10mph) | 22km/h (14mph) | 14km/h (9mph) | 19km/h (12mph) | 17km/h (11mph) |
| Direction | 83° E | 86° E | 78° ENE | 104° ESE | 187° S | 197° SSW | 261° W | 317° NW |
| Wind chill | 19°C (66°F) | 19°C (65°F) | 19°C (66°F) | 20°C (69°F) | 21°C (69°F) | 21°C (70°F) | 20°C (67°F) | 20°C (68°F) |
| Waves | ||||||||
| Height | 2.7m (8.9ft) | 2.6m (8.6ft) | 2.5m (8.3ft) | 2.4m (7.9ft) | 2.3m (7.5ft) | 2.2m (7.3ft) | 2.1m (6.9ft) | 2.0m (6.5ft) |
| Direction | 224° SW | 225° SW | 226° SW | 227° SW | 228° SW | 229° SW | 229° SW | 232° SW |
| Period | 12.6 sec. | 12.6 sec. | 12.6 sec. | 12.6 sec. | 12.5 sec. | 12.4 sec. | 12.3 sec. | 12.0 sec. |
| Significant height | 0.2m (0.7ft) | 0.2m (0.7ft) | 0.1m (0.3ft) | 0.1m (0.3ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.1m (0.3ft) | 0.2m (0.7ft) |
| Sea water temperature | ||||||||
| Water temperature | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) |
Sea weather on Wednesday 17 December 2025
On Wednesday 17 December 2025, the sun will rise at 05:12 and will set at 19:38 on the beach(es) of Knysna. The outside temperature will be a high of 68°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! Be careful, the sea will be generally rough with a wind speed of up to 26.7mph km/h (with gusts up to 36.7mph). Wave height will be up to 12.1ft 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 (67°F) | 18°C (65°F) | 18°C (64°F) | 17°C (62°F) | 17°C (62°F) | 17°C (63°F) | 17°C (63°F) |
| Perceived temperature | 20°C (67°F) | 19°C (67°F) | 18°C (65°F) | 18°C (64°F) | 17°C (62°F) | 17°C (62°F) | 17°C (63°F) | 17°C (63°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 80% | 82% | 85% | 75% | 73% | 67% | 61% | 59% |
| Barometric pressure | 1005 hPa | 1004 hPa | 1009 hPa | 1011 hPa | 1013 hPa | 1014 hPa | 1016 hPa | 1019 hPa |
| Cloud cover | 5% | 14% | 88% | 100% | 100% | 100% | 53% | 66% |
| Heat index | 20°C (67°F) | 19°C (67°F) | 18°C (65°F) | 18°C (64°F) | 17°C (62°F) | 17°C (62°F) | 17°C (63°F) | 17°C (63°F) |
| Dew point | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) | 13°C (56°F) | 12°C (53°F) | 11°C (51°F) | 9°C (49°F) | 9°C (48°F) |
| Wind | ||||||||
| Speed | 11km/h (7mph) | 18km/h (11mph) | 42km/h (26mph) | 43km/h (27mph) | 41km/h (25mph) | 42km/h (26mph) | 42km/h (26mph) | 30km/h (19mph) |
| Gusts | 18km/h (11mph) | 29km/h (18mph) | 57km/h (35mph) | 57km/h (35mph) | 55km/h (34mph) | 59km/h (37mph) | 48km/h (30mph) | 42km/h (26mph) |
| Direction | 265° W | 305° NW | 242° WSW | 254° WSW | 255° WSW | 238° WSW | 235° SW | 230° SW |
| Wind chill | 20°C (67°F) | 19°C (67°F) | 18°C (65°F) | 18°C (64°F) | 17°C (62°F) | 17°C (62°F) | 17°C (63°F) | 17°C (63°F) |
| Waves | ||||||||
| Height | 2.1m (6.8ft) | 2.6m (8.5ft) | 3.2m (10.6ft) | 3.5m (11.5ft) | 3.7m (12.2ft) | 3.7m (12.0ft) | 3.7m (12.3ft) | 3.3m (11.0ft) |
| Direction | 233° SW | 234° SW | 232° SW | 232° SW | 228° SW | 230° SW | 231° SW | 228° SW |
| Period | 11.7 sec. | 10.2 sec. | 8.2 sec. | 8.1 sec. | 8.1 sec. | 9.0 sec. | 9.0 sec. | 8.9 sec. |
| Significant height | 0.1m (0.3ft) | 0.4m (1.3ft) | 1.5m (4.9ft) | 1.4m (4.6ft) | 1.6m (5.2ft) | 1.5m (4.9ft) | 1.5m (4.9ft) | 1.0m (3.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) |
Sea weather on Thursday 18 December 2025
On Thursday 18 December 2025, the sun will rise at 05:12 and will set at 19:38 on the beach(es) of Knysna. The outside temperature will be a high of 67°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 16.2mph km/h (with gusts up to 24.9mph). Wave height will be up to 9.8ft 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 (61°F) | 16°C (60°F) | 18°C (64°F) | 19°C (67°F) | 18°C (65°F) | 18°C (65°F) | 18°C (65°F) |
| Perceived temperature | 17°C (62°F) | 16°C (61°F) | 16°C (60°F) | 18°C (64°F) | 19°C (67°F) | 18°C (65°F) | 18°C (65°F) | 18°C (65°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 58% | 64% | 65% | 52% | 48% | 66% | 71% | 71% |
| Barometric pressure | 1019 hPa | 1019 hPa | 1020 hPa | 1021 hPa | 1021 hPa | 1021 hPa | 1021 hPa | 1023 hPa |
| Cloud cover | 88% | 85% | 12% | 14% | 43% | 9% | 6% | 2% |
| Heat index | 17°C (62°F) | 16°C (61°F) | 16°C (60°F) | 18°C (64°F) | 19°C (67°F) | 18°C (65°F) | 18°C (65°F) | 18°C (65°F) |
| Dew point | 9°C (48°F) | 9°C (49°F) | 9°C (49°F) | 8°C (46°F) | 8°C (46°F) | 12°C (53°F) | 13°C (55°F) | 13°C (56°F) |
| Wind | ||||||||
| Speed | 22km/h (13mph) | 17km/h (10mph) | 18km/h (11mph) | 20km/h (13mph) | 21km/h (13mph) | 26km/h (16mph) | 19km/h (12mph) | 10km/h (6mph) |
| Gusts | 30km/h (19mph) | 24km/h (15mph) | 27km/h (17mph) | 26km/h (16mph) | 29km/h (18mph) | 40km/h (25mph) | 30km/h (19mph) | 15km/h (10mph) |
| Direction | 239° WSW | 273° W | 311° NW | 288° WNW | 248° WSW | 228° SW | 235° SW | 259° W |
| Wind chill | 17°C (62°F) | 16°C (61°F) | 16°C (60°F) | 18°C (64°F) | 19°C (67°F) | 18°C (65°F) | 18°C (65°F) | 18°C (65°F) |
| Waves | ||||||||
| Height | 3.0m (9.8ft) | 2.5m (8.1ft) | 2.4m (8.0ft) | 2.4m (7.8ft) | 2.3m (7.6ft) | 2.2m (7.2ft) | 2.2m (7.2ft) | 2.2m (7.2ft) |
| Direction | 222° SW | 215° SW | 210° SSW | 204° SSW | 198° SSW | 187° S | 179° S | 176° S |
| Period | 10.9 sec. | 10.2 sec. | 10.1 sec. | 10.0 sec. | 10.1 sec. | 10.5 sec. | 10.6 sec. | 10.7 sec. |
| Significant height | 0.5m (1.6ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 0.9m (3ft) | 0.9m (3ft) | 0.8m (2.6ft) | 0.8m (2.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) |
Sea weather on Friday 19 December 2025
On Friday 19 December 2025, the sun will rise at 05:12 and will set at 19:39 on the beach(es) of Knysna. The outside temperature will be a high of 67°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 8.7mph km/h (with gusts up to 18mph). 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 | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 18°C (65°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 19°C (66°F) |
| Perceived temperature | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 18°C (65°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 19°C (66°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 72% | 74% | 71% | 65% | 66% | 66% | 69% | 77% |
| Barometric pressure | 1023 hPa | 1022 hPa | 1022 hPa | 1021 hPa | 1020 hPa | 1019 hPa | 1019 hPa | 1021 hPa |
| Cloud cover | 6% | 10% | 0% | 0% | 0% | 0% | 0% | 0% |
| Heat index | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 18°C (65°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 19°C (66°F) |
| Dew point | 13°C (55°F) | 13°C (55°F) | 12°C (54°F) | 12°C (53°F) | 11°C (53°F) | 11°C (52°F) | 12°C (54°F) | 15°C (59°F) |
| Wind | ||||||||
| Speed | 9km/h (6mph) | 11km/h (7mph) | 7km/h (4mph) | 4km/h (2mph) | 13km/h (8mph) | 14km/h (9mph) | 10km/h (6mph) | 5km/h (3mph) |
| Gusts | 14km/h (9mph) | 17km/h (10mph) | 10km/h (6mph) | 7km/h (4mph) | 24km/h (15mph) | 29km/h (18mph) | 21km/h (13mph) | 8km/h (5mph) |
| Direction | 313° NW | 336° NNW | 238° WSW | 68° ENE | 153° SSE | 148° SSE | 147° SSE | 101° ESE |
| Wind chill | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 18°C (65°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 19°C (66°F) |
| Waves | ||||||||
| Height | 2.1m (6.9ft) | 2.0m (6.6ft) | 2.0m (6.6ft) | 1.9m (6.2ft) | 1.9m (6.2ft) | 1.8m (5.9ft) | 1.9m (6.2ft) | 1.9m (6.2ft) |
| Direction | 174° S | 172° S | 171° S | 170° S | 169° S | 168° SSE | 182° S | 198° SSW |
| Period | 10.8 sec. | 10.8 sec. | 10.7 sec. | 10.6 sec. | 10.4 sec. | 10.2 sec. | 10.1 sec. | 10.0 sec. |
| Significant height | 0.9m (3ft) | 0.8m (2.6ft) | 0.9m (3ft) | 0.7m (2.3ft) | 0.9m (3ft) | 1.0m (3.3ft) | 1.1m (3.6ft) | 1.2m (3.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) |
Sea weather on Saturday 20 December 2025
On Saturday 20 December 2025, the sun will rise at 05:13 and will set at 19:39 on the beach(es) of Knysna. 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! Be careful, the sea will be generally rough with a wind speed of up to 25.5mph km/h (with gusts up to 27.3mph). Wave height will be up to 6.6ft 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) | 18°C (65°F) | 19°C (66°F) | 19°C (65°F) | 18°C (65°F) | 18°C (65°F) | 20°C (67°F) |
| Perceived temperature | 19°C (65°F) | 18°C (65°F) | 18°C (65°F) | 19°C (66°F) | 19°C (65°F) | 18°C (65°F) | 18°C (65°F) | 20°C (67°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 78% | 77% | 76% | 73% | 73% | 76% | 81% | 85% |
| Barometric pressure | 1021 hPa | 1020 hPa | 1020 hPa | 1020 hPa | 1018 hPa | 1016 hPa | 1014 hPa | 1013 hPa |
| Cloud cover | 0% | 4% | 11% | 8% | 0% | 0% | 1% | 5% |
| Heat index | 19°C (65°F) | 18°C (65°F) | 18°C (65°F) | 19°C (66°F) | 19°C (65°F) | 18°C (65°F) | 18°C (65°F) | 20°C (67°F) |
| Dew point | 15°C (58°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 15°C (59°F) | 17°C (63°F) |
| Wind | ||||||||
| Speed | 3km/h (2mph) | 6km/h (4mph) | 10km/h (6mph) | 16km/h (10mph) | 24km/h (15mph) | 31km/h (19mph) | 39km/h (24mph) | 41km/h (26mph) |
| Gusts | 5km/h (3mph) | 9km/h (6mph) | 14km/h (9mph) | 20km/h (13mph) | 27km/h (17mph) | 31km/h (19mph) | 40km/h (25mph) | 44km/h (27mph) |
| Direction | 30° NNE | 43° NE | 66° ENE | 89° E | 111° ESE | 110° ESE | 103° ESE | 100° E |
| Wind chill | 19°C (65°F) | 18°C (65°F) | 18°C (65°F) | 19°C (66°F) | 19°C (65°F) | 18°C (65°F) | 18°C (65°F) | 20°C (67°F) |
| Waves | ||||||||
| Height | 2.0m (6.6ft) | 1.9m (6.2ft) | 1.7m (5.6ft) | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.8m (5.9ft) |
| Direction | 175° S | 189° S | 211° SSW | 213° SSW | 212° SSW | 213° SSW | 207° SSW | 198° SSW |
| Period | 9.9 sec. | 9.8 sec. | 9.6 sec. | 10.1 sec. | 11.3 sec. | 10.8 sec. | 10.5 sec. | 10.4 sec. |
| Significant height | 1.0m (3.3ft) | 0.8m (2.6ft) | 1.0m (3.3ft) | 1.3m (4.3ft) | 1.4m (4.6ft) | 1.3m (4.3ft) | 1.4m (4.6ft) | 1.4m (4.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) |