Sea weather in Half Moon Bay in California All the beach weather in Half Moon Bay

All the essential weather information for enjoying the beach in Half Moon Bay in California, 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 Half Moon Bay over the next 7 days?

Discover the best moment to go to the beach in Half Moon Bay in California this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Half Moon Bay. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Sunday 19 July 202656°F to 65°Frecommended
Monday 20 July 202658°F to 65°Frecommended
Tuesday 21 July 202656°F to 68°Frecommended
Wednesday 22 July 202656°F to 70°Frecommended
Thursday 23 July 202654°F to 68°Frecommended
Friday 24 July 202656°F to 65°Frecommended
Saturday 25 July 202650°F to 65°Frecommended

Sea Weather: Your daily and hourly sea weather in Half Moon Bay

Sea weather on Sunday 19 July 2026

On Sunday 19 July 2026, the sun will rise at 06:04 and will set at 20:28 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 65°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 10.6mph km/h (with gusts up to 14.9mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (55°F)13°C (55°F)13°C (55°F)16°C (61°F)18°C (64°F)17°C (62°F)14°C (58°F)14°C (57°F)
Perceived temperature12°C (53°F)12°C (54°F)12°C (54°F)16°C (61°F)18°C (64°F)17°C (62°F)13°C (56°F)14°C (57°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity91%90%89%71%67%68%79%89%
Barometric pressure1015 hPa1016 hPa1016 hPa1016 hPa1015 hPa1014 hPa1013 hPa1014 hPa
Cloud cover84%34%38%32%21%13%7%28%
Heat index13°C (55°F)13°C (55°F)13°C (55°F)16°C (61°F)18°C (64°F)17°C (62°F)14°C (58°F)14°C (57°F)
Dew point11°C (52°F)11°C (52°F)11°C (52°F)11°C (52°F)11°C (53°F)11°C (52°F)11°C (51°F)12°C (54°F)
Wind
Speed9km/h (6mph)8km/h (5mph)8km/h (5mph)10km/h (6mph)15km/h (9mph)17km/h (11mph)14km/h (9mph)8km/h (5mph)
Gusts14km/h (9mph)13km/h (8mph)11km/h (7mph)11km/h (7mph)18km/h (11mph)24km/h (15mph)24km/h (15mph)12km/h (8mph)
Direction 269°
W
268°
W
279°
W
270°
W
273°
W
273°
W
264°
W
260°
W
Wind chill12°C (53°F)12°C (54°F)12°C (54°F)16°C (61°F)18°C (64°F)17°C (62°F)13°C (56°F)14°C (57°F)
Waves
Height0.9m (3.0ft)0.9m (3.1ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (3.1ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (3.0ft)
Direction 251°
WSW
250°
WSW
249°
WSW
237°
WSW
252°
WSW
226°
SW
244°
WSW
240°
WSW
Period6.6 sec.6.7 sec.7.1 sec.7.3 sec.7.4 sec.7.3 sec.8.3 sec.8.2 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 06:05 and will set at 20:27 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 65°F t and a low of 58°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 13.7mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (57°F)14°C (57°F)14°C (57°F)18°C (65°F)18°C (65°F)17°C (63°F)16°C (60°F)14°C (57°F)
Perceived temperature14°C (57°F)13°C (56°F)14°C (58°F)18°C (65°F)18°C (65°F)17°C (63°F)16°C (60°F)14°C (56°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity90%90%88%68%67%70%77%89%
Barometric pressure1014 hPa1014 hPa1014 hPa1014 hPa1015 hPa1014 hPa1014 hPa1015 hPa
Cloud cover100%56%45%52%48%46%15%24%
Heat index14°C (57°F)14°C (57°F)14°C (57°F)18°C (65°F)18°C (65°F)17°C (63°F)16°C (60°F)14°C (57°F)
Dew point12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (53°F)12°C (53°F)12°C (54°F)
Wind
Speed7km/h (4mph)10km/h (6mph)6km/h (4mph)5km/h (3mph)14km/h (9mph)15km/h (10mph)12km/h (7mph)9km/h (5mph)
Gusts11km/h (7mph)15km/h (9mph)8km/h (5mph)5km/h (3mph)18km/h (11mph)22km/h (14mph)20km/h (12mph)14km/h (9mph)
Direction 243°
WSW
247°
WSW
253°
WSW
292°
WNW
277°
W
275°
W
280°
W
289°
WNW
Wind chill14°C (57°F)13°C (56°F)14°C (58°F)18°C (65°F)18°C (65°F)17°C (63°F)16°C (60°F)14°C (56°F)
Waves
Height0.9m (3.0ft)0.9m (3.1ft)1.0m (3.2ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.2ft)
Direction 237°
WSW
210°
SSW
210°
SSW
201°
SSW
201°
SSW
201°
SSW
196°
SSW
197°
SSW
Period8.3 sec.12.6 sec.12.1 sec.11.9 sec.11.7 sec.11.4 sec.11.3 sec.11.1 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)0.8m (2.6ft)
Sea water temperature
Water temperature14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 06:05 and will set at 20:27 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 68°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 9.9mph km/h (with gusts up to 16.8mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (57°F)14°C (56°F)14°C (58°F)18°C (64°F)20°C (67°F)19°C (66°F)15°C (59°F)14°C (58°F)
Perceived temperature14°C (57°F)13°C (55°F)14°C (58°F)18°C (64°F)20°C (67°F)19°C (66°F)15°C (59°F)14°C (58°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity88%91%86%69%59%61%71%83%
Barometric pressure1014 hPa1013 hPa1014 hPa1015 hPa1014 hPa1013 hPa1013 hPa1014 hPa
Cloud cover24%23%85%45%30%11%3%3%
Heat index14°C (57°F)14°C (56°F)14°C (58°F)18°C (64°F)20°C (67°F)19°C (66°F)15°C (59°F)14°C (58°F)
Dew point12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)11°C (53°F)11°C (52°F)10°C (50°F)12°C (53°F)
Wind
Speed6km/h (4mph)10km/h (6mph)6km/h (4mph)10km/h (6mph)14km/h (9mph)16km/h (10mph)13km/h (8mph)7km/h (4mph)
Gusts10km/h (6mph)16km/h (10mph)10km/h (6mph)13km/h (8mph)20km/h (12mph)27km/h (17mph)27km/h (17mph)15km/h (9mph)
Direction 300°
WNW
292°
WNW
291°
WNW
290°
WNW
281°
W
285°
WNW
286°
WNW
258°
WSW
Wind chill14°C (57°F)13°C (55°F)14°C (58°F)18°C (64°F)20°C (67°F)19°C (66°F)15°C (59°F)14°C (58°F)
Waves
Height1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.2ft)1.0m (3.2ft)1.0m (3.2ft)1.0m (3.2ft)1.0m (3.2ft)
Direction 221°
SW
220°
SW
221°
SW
214°
SW
201°
SSW
202°
SSW
219°
SW
220°
SW
Period11.1 sec.10.9 sec.10.8 sec.10.8 sec.11.3 sec.11.0 sec.10.6 sec.10.2 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)
Sea water temperature
Water temperature14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 06:06 and will set at 20:26 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 70°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 18mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature15°C (59°F)15°C (59°F)15°C (59°F)20°C (68°F)21°C (69°F)19°C (66°F)15°C (58°F)15°C (59°F)
Perceived temperature15°C (59°F)15°C (58°F)15°C (59°F)20°C (68°F)21°C (69°F)19°C (66°F)14°C (57°F)15°C (59°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%81%81%62%58%60%69%86%
Barometric pressure1013 hPa1013 hPa1014 hPa1014 hPa1014 hPa1013 hPa1012 hPa1014 hPa
Cloud cover2%3%4%6%5%4%2%6%
Heat index15°C (59°F)15°C (59°F)15°C (59°F)20°C (68°F)21°C (69°F)19°C (66°F)15°C (58°F)15°C (59°F)
Dew point11°C (53°F)12°C (53°F)12°C (53°F)12°C (54°F)12°C (54°F)11°C (52°F)9°C (48°F)13°C (55°F)
Wind
Speed7km/h (4mph)8km/h (5mph)6km/h (4mph)6km/h (4mph)14km/h (9mph)15km/h (9mph)12km/h (7mph)9km/h (6mph)
Gusts15km/h (9mph)16km/h (10mph)12km/h (7mph)9km/h (5mph)23km/h (14mph)29km/h (18mph)24km/h (15mph)17km/h (11mph)
Direction 235°
SW
241°
WSW
240°
WSW
267°
W
273°
W
279°
W
279°
W
266°
W
Wind chill15°C (59°F)15°C (58°F)15°C (59°F)20°C (68°F)21°C (69°F)19°C (66°F)14°C (57°F)15°C (59°F)
Waves
Height1.0m (3.2ft)1.0m (3.3ft)1.0m (3.4ft)1.0m (3.3ft)1.0m (3.2ft)1.0m (3.2ft)0.9m (3.1ft)0.9m (3.1ft)
Direction 221°
SW
214°
SSW
210°
SSW
215°
SW
212°
SSW
212°
SSW
212°
SSW
212°
SSW
Period10.2 sec.11.7 sec.5.6 sec.10.1 sec.9.7 sec.9.4 sec.9.0 sec.8.7 sec.
Significant height0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)0.9m (3ft)0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 06:07 and will set at 20:25 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 68°F t and a low of 54°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 18mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature15°C (59°F)14°C (58°F)15°C (58°F)19°C (66°F)18°C (65°F)17°C (63°F)14°C (57°F)14°C (58°F)
Perceived temperature15°C (59°F)14°C (58°F)15°C (58°F)19°C (66°F)18°C (65°F)17°C (63°F)13°C (55°F)14°C (57°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity86%85%85%66%60%61%71%85%
Barometric pressure1014 hPa1013 hPa1014 hPa1014 hPa1014 hPa1013 hPa1013 hPa1014 hPa
Cloud cover0%0%0%0%0%0%0%0%
Heat index15°C (59°F)14°C (58°F)15°C (58°F)19°C (66°F)18°C (65°F)17°C (63°F)14°C (57°F)14°C (58°F)
Dew point12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)11°C (51°F)10°C (49°F)8°C (47°F)12°C (53°F)
Wind
Speed6km/h (4mph)7km/h (4mph)6km/h (4mph)8km/h (5mph)14km/h (9mph)17km/h (10mph)14km/h (9mph)9km/h (6mph)
Gusts12km/h (8mph)14km/h (8mph)11km/h (7mph)11km/h (7mph)27km/h (17mph)21km/h (13mph)29km/h (18mph)17km/h (11mph)
Direction 244°
WSW
260°
W
269°
W
283°
WNW
281°
W
284°
WNW
285°
WNW
260°
W
Wind chill15°C (59°F)14°C (58°F)15°C (58°F)19°C (66°F)18°C (65°F)17°C (63°F)13°C (55°F)14°C (57°F)
Waves
Height0.9m (3.1ft)1.0m (3.2ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.1ft)1.0m (3.3ft)1.0m (3.4ft)
Direction 212°
SSW
212°
SSW
211°
SSW
211°
SSW
210°
SSW
210°
SSW
208°
SSW
208°
SSW
Period14.4 sec.5.5 sec.14.4 sec.14.3 sec.14.3 sec.14.1 sec.13.8 sec.9.8 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)
Sea water temperature
Water temperature14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)

Sea weather on Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 06:08 and will set at 20:25 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 65°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 9.9mph km/h (with gusts up to 19.9mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (57°F)13°C (56°F)14°C (57°F)17°C (63°F)17°C (63°F)16°C (60°F)14°C (56°F)13°C (56°F)
Perceived temperature14°C (56°F)13°C (55°F)14°C (56°F)17°C (62°F)17°C (63°F)16°C (60°F)13°C (55°F)12°C (54°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity88%92%88%75%67%67%76%85%
Barometric pressure1014 hPa1014 hPa1015 hPa1015 hPa1015 hPa1015 hPa1015 hPa1016 hPa
Cloud cover1%18%23%8%1%0%2%2%
Heat index14°C (57°F)13°C (56°F)14°C (57°F)17°C (63°F)17°C (63°F)16°C (60°F)14°C (56°F)13°C (56°F)
Dew point12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)11°C (52°F)10°C (49°F)9°C (49°F)11°C (51°F)
Wind
Speed8km/h (5mph)9km/h (6mph)9km/h (6mph)10km/h (6mph)14km/h (9mph)16km/h (10mph)14km/h (9mph)11km/h (7mph)
Gusts14km/h (9mph)16km/h (10mph)13km/h (8mph)13km/h (8mph)24km/h (15mph)32km/h (20mph)29km/h (18mph)21km/h (13mph)
Direction 261°
W
275°
W
281°
W
281°
W
281°
W
282°
WNW
276°
W
264°
W
Wind chill14°C (56°F)13°C (55°F)14°C (56°F)17°C (62°F)17°C (63°F)16°C (60°F)13°C (55°F)12°C (54°F)
Waves
Height1.1m (3.5ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.2m (3.9ft)1.2m (3.9ft)
Direction 207°
SSW
203°
SSW
200°
SSW
199°
SSW
199°
SSW
199°
SSW
198°
SSW
197°
SSW
Period6.1 sec.6.1 sec.11.2 sec.13.6 sec.13.4 sec.13.2 sec.13.1 sec.12.9 sec.
Significant height0.9m (3ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)1.2m (3.9ft)1.1m (3.6ft)1.0m (3.3ft)
Sea water temperature
Water temperature14°C (56°F)14°C (56°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Saturday 25 July 2026

On Saturday 25 July 2026, the sun will rise at 06:08 and will set at 20:24 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 65°F t and a low of 50°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 14.3mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (56°F)13°C (55°F)14°C (56°F)17°C (62°F)18°C (64°F)16°C (60°F)12°C (53°F)12°C (54°F)
Perceived temperature13°C (55°F)12°C (54°F)13°C (56°F)17°C (62°F)18°C (64°F)15°C (58°F)10°C (50°F)11°C (51°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity89%91%87%73%65%66%78%87%
Barometric pressure1016 hPa1016 hPa1017 hPa1017 hPa1016 hPa1016 hPa1015 hPa1015 hPa
Cloud cover9%23%26%12%3%1%0%5%
Heat index13°C (56°F)13°C (55°F)14°C (56°F)17°C (62°F)18°C (64°F)16°C (60°F)12°C (53°F)12°C (54°F)
Dew point11°C (53°F)11°C (53°F)12°C (53°F)12°C (53°F)11°C (52°F)9°C (49°F)8°C (46°F)10°C (50°F)
Wind
Speed9km/h (6mph)9km/h (5mph)9km/h (5mph)10km/h (6mph)14km/h (9mph)18km/h (11mph)14km/h (9mph)12km/h (7mph)
Gusts15km/h (9mph)15km/h (9mph)13km/h (8mph)12km/h (8mph)21km/h (13mph)21km/h (13mph)23km/h (15mph)21km/h (13mph)
Direction 263°
W
262°
W
271°
W
279°
W
284°
WNW
284°
WNW
278°
W
275°
W
Wind chill13°C (55°F)12°C (54°F)13°C (56°F)17°C (62°F)18°C (64°F)15°C (58°F)10°C (50°F)11°C (51°F)
Waves
Height1.3m (4.3ft)1.3m (4.3ft)1.3m (4.3ft)1.2m (3.9ft)1.3m (4.3ft)1.3m (4.3ft)1.3m (4.3ft)1.3m (4.3ft)
Direction 197°
SSW
217°
SW
226°
SW
208°
SSW
199°
SSW
217°
SW
226°
SW
226°
SW
Period12.8 sec.12.8 sec.12.7 sec.12.6 sec.12.5 sec.13.6 sec.13.9 sec.13.5 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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