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. Our opinion
Tuesday 15 April 202556°F to 63°Frecommended
Wednesday 16 April 202559°F to 65°Frecommended
Thursday 17 April 202561°F to 65°Fdiscouraged
Friday 18 April 202559°F to 67°Fdiscouraged
Saturday 19 April 202563°F to 70°Fdiscouraged
Sunday 20 April 202563°F to 63°Fdiscouraged
Monday 21 April 202561°F to 63°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Knysna

Sea weather on Tuesday 15 April 2025

On Tuesday 15 April 2025, the sun will rise at 06:51 and will set at 18:05 on the beach(es) of Knysna. The outside temperature will be a high of 63°F t and a low of 56°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 9.3mph km/h (with gusts up to 14.3mph). Wave height will be up to 10.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (60°F)15°C (60°F)15°C (59°F)16°C (61°F)15°C (58°F)14°C (57°F)14°C (57°F)16°C (60°F)
Perceived temperature16°C (60°F)15°C (60°F)15°C (59°F)16°C (61°F)14°C (57°F)13°C (56°F)14°C (58°F)16°C (60°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%77%77%73%73%76%80%81%
Barometric pressure1023 hPa1023 hPa1023 hPa1025 hPa1024 hPa1022 hPa1022 hPa1023 hPa
Cloud cover18%9%3%5%1%0%3%8%
Heat index16°C (60°F)15°C (60°F)15°C (59°F)16°C (61°F)15°C (58°F)14°C (57°F)14°C (57°F)16°C (60°F)
Dew point12°C (54°F)11°C (52°F)11°C (52°F)11°C (53°F)10°C (50°F)10°C (49°F)11°C (51°F)12°C (54°F)
Wind
Speed15km/h (9mph)13km/h (8mph)13km/h (8mph)10km/h (6mph)11km/h (7mph)11km/h (7mph)5km/h (3mph)8km/h (5mph)
Gusts23km/h (14mph)21km/h (13mph)21km/h (13mph)14km/h (9mph)22km/h (13mph)23km/h (15mph)10km/h (6mph)13km/h (8mph)
Direction 310°
NW
307°
NW
304°
NW
295°
WNW
244°
WSW
194°
SSW
158°
SSE
50°
NE
Wind chill16°C (60°F)15°C (60°F)15°C (59°F)16°C (61°F)14°C (57°F)13°C (56°F)14°C (58°F)16°C (60°F)
Waves
Height2.8m (9.2ft)2.9m (9.6ft)3.0m (9.9ft)3.1m (10.0ft)3.1m (10.1ft)3.1m (10.1ft)3.0m (9.9ft)2.9m (9.6ft)
Direction 208°
SSW
207°
SSW
208°
SSW
209°
SSW
208°
SSW
208°
SSW
208°
SSW
208°
SSW
Period11.2 sec.11.5 sec.11.6 sec.11.8 sec.12.5 sec.12.6 sec.12.6 sec.12.5 sec.
Significant height0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.3m (1ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather on Wednesday 16 April 2025

On Wednesday 16 April 2025, the sun will rise at 06:52 and will set at 18:03 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 8.1mph km/h (with gusts up to 12.4mph). Wave height will be up to 9.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (60°F)15°C (60°F)15°C (59°F)16°C (61°F)17°C (62°F)17°C (63°F)16°C (61°F)16°C (62°F)
Perceived temperature16°C (60°F)15°C (60°F)15°C (59°F)16°C (61°F)17°C (62°F)17°C (63°F)16°C (61°F)16°C (62°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%76%78%72%69%77%87%88%
Barometric pressure1022 hPa1021 hPa1021 hPa1022 hPa1021 hPa1020 hPa1021 hPa1022 hPa
Cloud cover9%10%2%7%5%11%20%53%
Heat index16°C (60°F)15°C (60°F)15°C (59°F)16°C (61°F)17°C (62°F)17°C (63°F)16°C (61°F)16°C (62°F)
Dew point12°C (53°F)11°C (52°F)11°C (52°F)11°C (52°F)11°C (52°F)13°C (55°F)14°C (57°F)14°C (58°F)
Wind
Speed6km/h (4mph)8km/h (5mph)9km/h (5mph)4km/h (2mph)6km/h (4mph)13km/h (8mph)8km/h (5mph)9km/h (6mph)
Gusts9km/h (6mph)12km/h (7mph)14km/h (8mph)6km/h (4mph)10km/h (6mph)20km/h (13mph)15km/h (9mph)15km/h (9mph)
Direction 41°
NE
65°
ENE
65°
ENE
34°
NE
144°
SE
155°
SSE
112°
ESE
60°
ENE
Wind chill16°C (60°F)15°C (60°F)15°C (59°F)16°C (61°F)17°C (62°F)17°C (63°F)16°C (61°F)16°C (62°F)
Waves
Height2.8m (9.3ft)2.7m (8.9ft)2.6m (8.6ft)2.5m (8.3ft)2.5m (8.1ft)2.5m (8.2ft)2.6m (8.6ft)2.9m (9.4ft)
Direction 208°
SSW
209°
SSW
209°
SSW
209°
SSW
209°
SSW
209°
SSW
204°
SSW
202°
SSW
Period12.5 sec.12.5 sec.12.7 sec.12.9 sec.13.0 sec.13.1 sec.13.1 sec.13.5 sec.
Significant height0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.3m (1ft)0.2m (0.7ft)0.1m (0.3ft)
Sea water temperature
Water temperature15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)

Sea weather on Thursday 17 April 2025

On Thursday 17 April 2025, the sun will rise at 06:53 and will set at 18:02 on the beach(es) of Knysna. The outside temperature will be a high of 65°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 24.9mph km/h (with gusts up to 26.7mph). Wave height will be up to 10.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (61°F)16°C (60°F)16°C (60°F)17°C (62°F)17°C (63°F)16°C (60°F)16°C (61°F)17°C (63°F)
Perceived temperature16°C (61°F)16°C (60°F)16°C (60°F)17°C (62°F)17°C (63°F)16°C (60°F)16°C (61°F)17°C (63°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity85%83%86%85%78%77%80%85%
Barometric pressure1022 hPa1022 hPa1022 hPa1023 hPa1022 hPa1021 hPa1021 hPa1021 hPa
Cloud cover26%39%41%7%3%1%5%8%
Heat index16°C (61°F)16°C (60°F)16°C (60°F)17°C (62°F)17°C (63°F)16°C (60°F)16°C (61°F)17°C (63°F)
Dew point13°C (56°F)13°C (55°F)13°C (56°F)14°C (57°F)14°C (56°F)12°C (53°F)13°C (55°F)15°C (58°F)
Wind
Speed5km/h (3mph)6km/h (4mph)11km/h (7mph)14km/h (9mph)29km/h (18mph)37km/h (23mph)40km/h (25mph)39km/h (24mph)
Gusts9km/h (6mph)10km/h (6mph)18km/h (11mph)21km/h (13mph)30km/h (19mph)39km/h (24mph)41km/h (26mph)43km/h (27mph)
Direction 36°
NE
73°
ENE
61°
ENE
85°
E
100°
E
101°
ESE
96°
E
90°
E
Wind chill16°C (61°F)16°C (60°F)16°C (60°F)17°C (62°F)17°C (63°F)16°C (60°F)16°C (61°F)17°C (63°F)
Waves
Height3.1m (10.1ft)3.1m (10.3ft)3.1m (10.2ft)3.0m (9.8ft)2.9m (9.4ft)2.8m (9.2ft)2.9m (9.5ft)3.0m (9.8ft)
Direction 192°
SSW
193°
SSW
194°
SSW
197°
SSW
198°
SSW
199°
SSW
200°
SSW
201°
SSW
Period15.9 sec.15.4 sec.15.0 sec.14.7 sec.14.4 sec.14.3 sec.14.1 sec.13.8 sec.
Significant height0.1m (0.3ft)0.2m (0.7ft)0.3m (1ft)0.3m (1ft)0.8m (2.6ft)1.1m (3.6ft)1.4m (4.6ft)1.5m (4.9ft)
Sea water temperature
Water temperature15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)

Sea weather on Friday 18 April 2025

On Friday 18 April 2025, the sun will rise at 06:53 and will set at 18:01 on the beach(es) of Knysna. The outside temperature will be a high of 67°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 20.5mph km/h (with gusts up to 22.4mph). Wave height will be up to 9.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature17°C (63°F)17°C (62°F)17°C (62°F)18°C (64°F)17°C (63°F)19°C (65°F)17°C (62°F)19°C (65°F)
Perceived temperature17°C (63°F)17°C (62°F)17°C (62°F)18°C (64°F)17°C (63°F)19°C (65°F)17°C (62°F)19°C (65°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity85%85%85%77%75%71%81%77%
Barometric pressure1020 hPa1019 hPa1018 hPa1018 hPa1017 hPa1014 hPa1014 hPa1013 hPa
Cloud cover0%0%0%2%2%3%3%0%
Heat index17°C (63°F)17°C (62°F)17°C (62°F)18°C (64°F)17°C (63°F)19°C (65°F)17°C (62°F)19°C (65°F)
Dew point14°C (58°F)14°C (58°F)14°C (57°F)14°C (57°F)13°C (55°F)13°C (56°F)13°C (56°F)15°C (58°F)
Wind
Speed33km/h (21mph)24km/h (15mph)19km/h (12mph)13km/h (8mph)19km/h (12mph)21km/h (13mph)22km/h (13mph)20km/h (12mph)
Gusts34km/h (21mph)24km/h (15mph)36km/h (22mph)22km/h (14mph)25km/h (16mph)22km/h (14mph)28km/h (17mph)25km/h (16mph)
Direction 84°
E
75°
ENE
74°
ENE
69°
ENE
104°
ESE
113°
ESE
98°
E
80°
E
Wind chill17°C (63°F)17°C (62°F)17°C (62°F)18°C (64°F)17°C (63°F)19°C (65°F)17°C (62°F)19°C (65°F)
Waves
Height2.8m (9.2ft)2.6m (8.6ft)2.5m (8.1ft)2.4m (7.7ft)2.3m (7.5ft)2.2m (7.2ft)2.1m (7.1ft)2.1m (7.0ft)
Direction 202°
SSW
201°
SSW
201°
SSW
201°
SSW
201°
SSW
203°
SSW
204°
SSW
205°
SSW
Period13.6 sec.13.6 sec.13.5 sec.13.4 sec.13.2 sec.12.8 sec.12.6 sec.7.3 sec.
Significant height1.4m (4.6ft)1.1m (3.6ft)0.6m (2ft)0.5m (1.6ft)0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)0.5m (1.6ft)
Sea water temperature
Water temperature15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)

Sea weather on Saturday 19 April 2025

On Saturday 19 April 2025, the sun will rise at 06:54 and will set at 18:00 on the beach(es) of Knysna. 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 13.7mph km/h (with gusts up to 19.9mph). Wave height will be up to 7.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (66°F)19°C (67°F)20°C (69°F)20°C (68°F)19°C (67°F)18°C (64°F)18°C (64°F)17°C (63°F)
Perceived temperature19°C (66°F)19°C (67°F)20°C (69°F)20°C (68°F)19°C (67°F)18°C (64°F)18°C (64°F)17°C (63°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity72%63%59%64%72%83%91%91%
Barometric pressure1013 hPa1011 hPa1011 hPa1012 hPa1012 hPa1013 hPa1015 hPa1017 hPa
Cloud cover2%0%0%5%7%38%82%39%
Heat index19°C (66°F)19°C (67°F)20°C (69°F)20°C (68°F)19°C (67°F)18°C (64°F)18°C (64°F)17°C (63°F)
Dew point14°C (57°F)12°C (54°F)12°C (54°F)13°C (56°F)14°C (57°F)15°C (59°F)16°C (61°F)16°C (61°F)
Wind
Speed10km/h (6mph)10km/h (6mph)12km/h (7mph)14km/h (9mph)18km/h (11mph)22km/h (13mph)21km/h (13mph)20km/h (12mph)
Gusts21km/h (13mph)20km/h (13mph)25km/h (16mph)30km/h (19mph)21km/h (13mph)27km/h (17mph)32km/h (20mph)29km/h (18mph)
Direction 54°
NE
25°
NNE
12°
NNE
297°
WNW
242°
WSW
262°
W
290°
WNW
291°
WNW
Wind chill19°C (66°F)19°C (67°F)20°C (69°F)20°C (68°F)19°C (67°F)18°C (64°F)18°C (64°F)17°C (63°F)
Waves
Height2.1m (6.8ft)2.2m (7.3ft)2.2m (7.1ft)2.0m (6.7ft)2.0m (6.6ft)1.9m (6.2ft)1.9m (6.2ft)1.8m (5.9ft)
Direction 205°
SSW
198°
SSW
193°
SSW
191°
S
190°
S
190°
S
180°
S
157°
SSE
Period7.4 sec.8.3 sec.8.3 sec.8.4 sec.8.6 sec.9.1 sec.9.2 sec.9.3 sec.
Significant height0.1m (0.3ft)0.5m (1.6ft)0.7m (2.3ft)1.1m (3.6ft)1.2m (3.9ft)1.1m (3.6ft)1.0m (3.3ft)0.9m (3ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather on Sunday 20 April 2025

On Sunday 20 April 2025, the sun will rise at 06:55 and will set at 17:59 on the beach(es) of Knysna. The outside temperature will be a high of 63°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 13.1mph km/h (with gusts up to 19.9mph). Wave height will be up to 8.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature18°C (64°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)
Perceived temperature18°C (64°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity90%95%96%96%94%91%88%88%
Barometric pressure1017 hPa1017 hPa1018 hPa1019 hPa1019 hPa1019 hPa1019 hPa1020 hPa
Cloud cover37%99%96%91%100%100%92%83%
Heat index18°C (64°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)
Dew point16°C (60°F)17°C (62°F)17°C (62°F)17°C (62°F)16°C (61°F)16°C (60°F)15°C (60°F)15°C (60°F)
Wind
Speed20km/h (12mph)21km/h (13mph)17km/h (11mph)15km/h (10mph)13km/h (8mph)11km/h (7mph)10km/h (6mph)17km/h (10mph)
Gusts32km/h (20mph)27km/h (17mph)31km/h (19mph)28km/h (17mph)24km/h (15mph)21km/h (13mph)18km/h (11mph)28km/h (17mph)
Direction 283°
WNW
282°
WNW
285°
WNW
280°
W
281°
W
246°
WSW
179°
S
139°
SE
Wind chill18°C (64°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)
Waves
Height1.8m (5.9ft)2.0m (6.6ft)2.2m (7.2ft)2.4m (7.9ft)2.6m (8.5ft)2.6m (8.5ft)2.5m (8.2ft)2.6m (8.5ft)
Direction 158°
SSE
166°
SSE
177°
S
180°
S
181°
S
179°
S
175°
S
170°
S
Period9.2 sec.8.8 sec.8.3 sec.8.6 sec.9.2 sec.9.2 sec.9.1 sec.9.2 sec.
Significant height1.1m (3.6ft)1.3m (4.3ft)1.2m (3.9ft)1.2m (3.9ft)0.9m (3ft)1.0m (3.3ft)1.1m (3.6ft)1.1m (3.6ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather on Monday 21 April 2025

On Monday 21 April 2025, the sun will rise at 06:56 and will set at 17:58 on the beach(es) of Knysna. The outside temperature will be a high of 63°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 24.2mph km/h (with gusts up to 34.2mph). Wave height will be up to 11.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature17°C (62°F)16°C (62°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (62°F)16°C (61°F)16°C (61°F)
Perceived temperature17°C (62°F)16°C (62°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (62°F)16°C (61°F)16°C (61°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity90%93%91%86%83%81%84%87%
Barometric pressure1020 hPa1020 hPa1020 hPa1020 hPa1020 hPa1018 hPa1017 hPa1016 hPa
Cloud cover100%100%100%100%100%97%87%72%
Heat index17°C (62°F)16°C (62°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (62°F)16°C (61°F)16°C (61°F)
Dew point15°C (60°F)15°C (60°F)15°C (58°F)14°C (56°F)13°C (56°F)13°C (56°F)14°C (56°F)14°C (57°F)
Wind
Speed23km/h (15mph)28km/h (17mph)35km/h (21mph)38km/h (24mph)37km/h (23mph)37km/h (23mph)37km/h (23mph)39km/h (24mph)
Gusts37km/h (23mph)40km/h (25mph)49km/h (31mph)55km/h (34mph)55km/h (34mph)49km/h (30mph)40km/h (25mph)43km/h (27mph)
Direction 114°
ESE
109°
ESE
109°
ESE
101°
E
93°
E
92°
E
92°
E
91°
E
Wind chill17°C (62°F)16°C (62°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (62°F)16°C (61°F)16°C (61°F)
Waves
Height2.8m (9.2ft)2.8m (9.2ft)2.9m (9.5ft)2.9m (9.5ft)2.9m (9.5ft)3.0m (9.8ft)3.2m (10.5ft)3.4m (11.2ft)
Direction 164°
SSE
160°
SSE
156°
SSE
152°
SSE
150°
SSE
147°
SSE
139°
SE
130°
SE
Period9.2 sec.10.4 sec.12.5 sec.12.0 sec.11.7 sec.11.5 sec.11.5 sec.11.3 sec.
Significant height1.0m (3.3ft)1.2m (3.9ft)1.7m (5.6ft)1.8m (5.9ft)1.9m (6.2ft)1.9m (6.2ft)2.1m (6.9ft)2.3m (7.5ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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