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
Thursday 13 November 202554°F to 63°Fnot recommended
Friday 14 November 202556°F to 61°Frecommended
Saturday 15 November 202554°F to 59°Frecommended
Sunday 16 November 202554°F to 59°Fdiscouraged
Monday 17 November 202552°F to 54°Fnot recommended
Tuesday 18 November 202552°F to 54°Fdiscouraged
Wednesday 19 November 202550°F to 54°Frecommended

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

Sea weather on Thursday 13 November 2025

On Thursday 13 November 2025, the sun will rise at 06:48 and will set at 17:00 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 63°F t and a low of 54°F. A total of 0.9in of precipitation could spoil your day at the beach. The sea will be generally calm, with a wind speed of up to 23mph km/h (with gusts up to 27.3mph). Wave height will be up to 10.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature17°C (63°F)16°C (62°F)16°C (61°F)16°C (62°F)14°C (58°F)13°C (55°F)12°C (54°F)13°C (56°F)
Perceived temperature17°C (63°F)16°C (62°F)16°C (61°F)16°C (62°F)13°C (55°F)10°C (51°F)11°C (52°F)12°C (54°F)
Precipitation0in0.2in0.3in0.3in0.1in0.1in0in0in
Humidity77%81%89%91%93%92%86%80%
Barometric pressure1011 hPa1009 hPa1009 hPa1008 hPa1010 hPa1011 hPa1011 hPa1013 hPa
Cloud cover76%100%100%100%100%80%34%34%
Heat index17°C (63°F)16°C (62°F)16°C (61°F)16°C (62°F)14°C (58°F)13°C (55°F)12°C (54°F)13°C (56°F)
Dew point13°C (55°F)13°C (56°F)14°C (57°F)15°C (59°F)13°C (56°F)11°C (52°F)10°C (50°F)10°C (49°F)
Wind
Speed26km/h (16mph)27km/h (17mph)32km/h (20mph)37km/h (23mph)17km/h (11mph)25km/h (15mph)13km/h (8mph)11km/h (7mph)
Gusts43km/h (27mph)44km/h (28mph)38km/h (24mph)44km/h (27mph)25km/h (15mph)36km/h (22mph)21km/h (13mph)16km/h (10mph)
Direction 151°
SSE
165°
SSE
157°
SSE
172°
S
224°
SW
218°
SW
164°
SSE
166°
SSE
Wind chill17°C (63°F)16°C (62°F)16°C (61°F)16°C (62°F)13°C (55°F)10°C (51°F)11°C (52°F)12°C (54°F)
Waves
Height2.0m (6.5ft)2.2m (7.1ft)2.7m (8.8ft)3.2m (10.5ft)2.8m (9.1ft)2.4m (7.7ft)2.3m (7.4ft)2.6m (8.4ft)
Direction 179°
S
182°
S
191°
SSW
196°
SSW
200°
SSW
206°
SSW
210°
SSW
266°
W
Period13.7 sec.13.4 sec.12.9 sec.12.7 sec.8.7 sec.8.6 sec.8.5 sec.13.2 sec.
Significant height1.5m (4.9ft)1.5m (4.9ft)1.8m (5.9ft)2.1m (6.9ft)0.7m (2.3ft)1.0m (3.3ft)0.7m (2.3ft)0.6m (2ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)

Sea weather on Friday 14 November 2025

On Friday 14 November 2025, the sun will rise at 06:49 and will set at 17:00 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 61°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 5.6mph km/h (with gusts up to 8.7mph). Wave height will be up to 9.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (56°F)13°C (56°F)13°C (55°F)14°C (57°F)15°C (60°F)16°C (60°F)14°C (57°F)14°C (57°F)
Perceived temperature13°C (55°F)13°C (56°F)13°C (55°F)14°C (57°F)15°C (60°F)16°C (60°F)14°C (58°F)14°C (56°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%81%83%78%70%69%76%77%
Barometric pressure1013 hPa1012 hPa1012 hPa1014 hPa1014 hPa1014 hPa1014 hPa1015 hPa
Cloud cover89%90%37%36%70%85%33%7%
Heat index13°C (56°F)13°C (56°F)13°C (55°F)14°C (57°F)15°C (60°F)16°C (60°F)14°C (57°F)14°C (57°F)
Dew point10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (49°F)10°C (50°F)
Wind
Speed9km/h (6mph)7km/h (4mph)3km/h (2mph)8km/h (5mph)6km/h (4mph)4km/h (3mph)4km/h (2mph)7km/h (4mph)
Gusts14km/h (9mph)12km/h (7mph)4km/h (3mph)12km/h (7mph)9km/h (6mph)7km/h (4mph)7km/h (4mph)13km/h (8mph)
Direction 132°
SE
168°
SSE
120°
ESE
95°
E
160°
SSE
194°
SSW

N
25°
NNE
Wind chill13°C (55°F)13°C (56°F)13°C (55°F)14°C (57°F)15°C (60°F)16°C (60°F)14°C (58°F)14°C (56°F)
Waves
Height2.9m (9.4ft)2.9m (9.6ft)2.8m (9.2ft)2.6m (8.4ft)2.3m (7.5ft)2.0m (6.7ft)1.9m (6.1ft)1.7m (5.7ft)
Direction 268°
W
269°
W
270°
W
270°
W
270°
W
271°
W
270°
W
274°
W
Period13.8 sec.14.1 sec.13.9 sec.13.6 sec.13.1 sec.12.8 sec.12.1 sec.11.4 sec.
Significant height0.6m (2ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)

Sea weather on Saturday 15 November 2025

On Saturday 15 November 2025, the sun will rise at 06:50 and will set at 16:59 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 59°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 8.1mph km/h (with gusts up to 13.1mph). Wave height will be up to 5.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (56°F)13°C (55°F)13°C (55°F)14°C (56°F)15°C (59°F)15°C (59°F)13°C (56°F)13°C (56°F)
Perceived temperature12°C (54°F)11°C (53°F)12°C (53°F)13°C (56°F)15°C (59°F)15°C (59°F)13°C (55°F)12°C (54°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%84%82%75%65%67%77%83%
Barometric pressure1015 hPa1012 hPa1011 hPa1010 hPa1008 hPa1006 hPa1006 hPa1007 hPa
Cloud cover3%18%20%46%49%44%50%67%
Heat index13°C (56°F)13°C (55°F)13°C (55°F)14°C (56°F)15°C (59°F)15°C (59°F)13°C (56°F)13°C (56°F)
Dew point10°C (50°F)10°C (50°F)10°C (49°F)9°C (49°F)9°C (47°F)9°C (48°F)9°C (49°F)10°C (51°F)
Wind
Speed12km/h (8mph)13km/h (8mph)10km/h (6mph)9km/h (5mph)5km/h (3mph)6km/h (4mph)9km/h (6mph)13km/h (8mph)
Gusts20km/h (13mph)21km/h (13mph)17km/h (11mph)13km/h (8mph)7km/h (4mph)10km/h (6mph)16km/h (10mph)19km/h (12mph)
Direction 47°
NE
30°
NNE
26°
NNE
20°
NNE
340°
NNW
246°
WSW
231°
SW
221°
SW
Wind chill12°C (54°F)11°C (53°F)12°C (53°F)13°C (56°F)15°C (59°F)15°C (59°F)13°C (55°F)12°C (54°F)
Waves
Height1.6m (5.3ft)1.5m (4.9ft)1.4m (4.5ft)1.3m (4.2ft)1.2m (3.9ft)1.1m (3.7ft)1.1m (3.6ft)1.1m (3.8ft)
Direction 268°
W
268°
W
267°
W
266°
W
265°
W
225°
SW
221°
SW
221°
SW
Period10.8 sec.8.4 sec.7.6 sec.7.4 sec.12.0 sec.12.0 sec.12.1 sec.7.6 sec.
Significant height0.7m (2.3ft)1.2m (3.9ft)1.2m (3.9ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)1.4m (4.6ft)1.0m (3.3ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)

Sea weather on Sunday 16 November 2025

On Sunday 16 November 2025, the sun will rise at 06:51 and will set at 16:58 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 59°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 19.3mph km/h (with gusts up to 28.6mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (55°F)13°C (56°F)13°C (55°F)14°C (57°F)14°C (58°F)14°C (57°F)13°C (56°F)14°C (57°F)
Perceived temperature12°C (53°F)12°C (54°F)12°C (53°F)13°C (55°F)13°C (55°F)12°C (54°F)11°C (52°F)12°C (53°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity85%86%88%79%69%67%78%76%
Barometric pressure1007 hPa1008 hPa1008 hPa1009 hPa1008 hPa1006 hPa1006 hPa1005 hPa
Cloud cover44%89%80%87%6%6%49%57%
Heat index13°C (55°F)13°C (56°F)13°C (55°F)14°C (57°F)14°C (58°F)14°C (57°F)13°C (56°F)14°C (57°F)
Dew point11°C (51°F)11°C (52°F)11°C (51°F)10°C (50°F)9°C (48°F)8°C (46°F)9°C (49°F)10°C (49°F)
Wind
Speed12km/h (8mph)12km/h (7mph)12km/h (7mph)15km/h (9mph)22km/h (13mph)21km/h (13mph)22km/h (14mph)31km/h (19mph)
Gusts18km/h (11mph)17km/h (11mph)18km/h (11mph)20km/h (13mph)33km/h (21mph)35km/h (22mph)36km/h (23mph)46km/h (28mph)
Direction 224°
SW
227°
SW
186°
S
176°
S
188°
S
181°
S
158°
SSE
158°
SSE
Wind chill12°C (53°F)12°C (54°F)12°C (53°F)13°C (55°F)13°C (55°F)12°C (54°F)11°C (52°F)12°C (53°F)
Waves
Height1.2m (3.9ft)1.2m (4.0ft)1.2m (4.1ft)1.2m (4.1ft)1.3m (4.2ft)1.3m (4.1ft)1.2m (4.1ft)1.2m (4.1ft)
Direction 273°
W
275°
W
281°
WNW
282°
WNW
283°
WNW
248°
WSW
253°
WSW
257°
WSW
Period7.3 sec.11.5 sec.11.1 sec.10.8 sec.10.7 sec.11.1 sec.11.3 sec.11.4 sec.
Significant height1.1m (3.6ft)1.0m (3.3ft)0.4m (1.3ft)0.7m (2.3ft)0.8m (2.6ft)1.2m (3.9ft)1.1m (3.6ft)1.0m (3.3ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)

Sea weather on Monday 17 November 2025

On Monday 17 November 2025, the sun will rise at 06:52 and will set at 16:58 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 54°F t and a low of 52°F. Precipitation is in the forecast (0.2in throughout the day): choose the right time to go to the beach and dodge the raindrops. Be careful, the sea will be generally rough with a wind speed of up to 27.3mph km/h (with gusts up to 37.3mph). Wave height will be up to 9.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (54°F)12°C (53°F)11°C (52°F)12°C (53°F)11°C (52°F)11°C (51°F)11°C (51°F)11°C (52°F)
Perceived temperature10°C (50°F)9°C (48°F)8°C (46°F)8°C (46°F)7°C (45°F)7°C (44°F)7°C (45°F)8°C (46°F)
Precipitation0in0in0in0.1in0in0in0in0in
Humidity81%89%81%88%88%86%83%83%
Barometric pressure1003 hPa1002 hPa1003 hPa1004 hPa1005 hPa1006 hPa1007 hPa1009 hPa
Cloud cover85%100%100%100%100%99%100%100%
Heat index12°C (54°F)12°C (53°F)11°C (52°F)12°C (53°F)11°C (52°F)11°C (51°F)11°C (51°F)11°C (52°F)
Dew point9°C (48°F)10°C (50°F)8°C (47°F)10°C (49°F)9°C (49°F)9°C (47°F)8°C (46°F)8°C (47°F)
Wind
Speed27km/h (17mph)31km/h (19mph)41km/h (25mph)44km/h (28mph)42km/h (26mph)42km/h (26mph)36km/h (22mph)31km/h (19mph)
Gusts38km/h (24mph)43km/h (27mph)54km/h (34mph)59km/h (36mph)57km/h (35mph)60km/h (37mph)52km/h (32mph)44km/h (27mph)
Direction 143°
SE
218°
SW
237°
WSW
269°
W
271°
W
288°
WNW
298°
WNW
299°
WNW
Wind chill10°C (50°F)9°C (48°F)8°C (46°F)8°C (46°F)7°C (45°F)7°C (44°F)7°C (45°F)8°C (46°F)
Waves
Height1.3m (4.2ft)1.3m (4.2ft)1.3m (4.2ft)1.5m (5.1ft)1.9m (6.3ft)2.0m (6.7ft)2.8m (9.3ft)2.8m (9.2ft)
Direction 261°
W
264°
W
265°
W
266°
W
268°
W
268°
W
270°
W
276°
W
Period13.8 sec.13.5 sec.13.3 sec.12.9 sec.12.6 sec.12.2 sec.11.8 sec.14.6 sec.
Significant height0.6m (2ft)1.1m (3.6ft)1.1m (3.6ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)1.1m (3.6ft)1.2m (3.9ft)
Sea water temperature
Water temperature15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)

Sea weather on Tuesday 18 November 2025

On Tuesday 18 November 2025, the sun will rise at 06:53 and will set at 16:57 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 54°F t and a low of 52°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 18mph). Wave height will be up to 8.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature11°C (52°F)11°C (52°F)11°C (52°F)12°C (53°F)12°C (54°F)12°C (54°F)11°C (53°F)11°C (52°F)
Perceived temperature9°C (48°F)9°C (49°F)10°C (49°F)11°C (51°F)11°C (52°F)10°C (51°F)10°C (50°F)10°C (50°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%83%80%75%71%71%75%79%
Barometric pressure1009 hPa1010 hPa1011 hPa1012 hPa1011 hPa1011 hPa1011 hPa1012 hPa
Cloud cover100%67%51%41%39%51%37%24%
Heat index11°C (52°F)11°C (52°F)11°C (52°F)12°C (53°F)12°C (54°F)12°C (54°F)11°C (53°F)11°C (52°F)
Dew point9°C (47°F)8°C (47°F)8°C (46°F)8°C (46°F)7°C (45°F)7°C (45°F)7°C (45°F)8°C (46°F)
Wind
Speed21km/h (13mph)14km/h (9mph)13km/h (8mph)12km/h (7mph)13km/h (8mph)17km/h (11mph)14km/h (9mph)10km/h (6mph)
Gusts29km/h (18mph)20km/h (12mph)19km/h (12mph)16km/h (10mph)18km/h (11mph)24km/h (15mph)22km/h (14mph)16km/h (10mph)
Direction 313°
NW
322°
NW
318°
NW
325°
NW
311°
NW
308°
NW
317°
NW
340°
NNW
Wind chill9°C (48°F)9°C (49°F)10°C (49°F)11°C (51°F)11°C (52°F)10°C (51°F)10°C (50°F)10°C (50°F)
Waves
Height2.7m (8.7ft)2.5m (8.3ft)2.4m (7.9ft)2.3m (7.5ft)2.1m (6.9ft)2.0m (6.6ft)2.0m (6.6ft)1.9m (6.2ft)
Direction 278°
W
282°
WNW
279°
W
276°
W
276°
W
276°
W
276°
W
276°
W
Period15.2 sec.14.9 sec.15.7 sec.14.1 sec.12.9 sec.12.8 sec.12.8 sec.12.8 sec.
Significant height1.2m (3.9ft)1.2m (3.9ft)1.1m (3.6ft)1.0m (3.3ft)0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)
Sea water temperature
Water temperature15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)

Sea weather on Wednesday 19 November 2025

On Wednesday 19 November 2025, the sun will rise at 06:54 and will set at 16:56 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 54°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 5mph km/h (with gusts up to 9.3mph). Wave height will be up to 6.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature11°C (51°F)10°C (50°F)10°C (49°F)11°C (52°F)11°C (52°F)11°C (52°F)11°C (51°F)11°C (51°F)
Perceived temperature10°C (50°F)10°C (49°F)10°C (49°F)11°C (52°F)11°C (51°F)10°C (51°F)10°C (51°F)11°C (51°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%82%83%72%60%63%72%76%
Barometric pressure1012 hPa1013 hPa1014 hPa1015 hPa1015 hPa1014 hPa1015 hPa1016 hPa
Cloud cover18%14%9%4%1%4%13%29%
Heat index11°C (51°F)10°C (50°F)10°C (49°F)11°C (52°F)11°C (52°F)11°C (52°F)11°C (51°F)11°C (51°F)
Dew point8°C (46°F)7°C (45°F)7°C (44°F)6°C (43°F)4°C (39°F)4°C (40°F)6°C (43°F)7°C (44°F)
Wind
Speed8km/h (5mph)7km/h (4mph)5km/h (3mph)5km/h (3mph)7km/h (4mph)8km/h (5mph)6km/h (4mph)4km/h (3mph)
Gusts13km/h (8mph)12km/h (7mph)8km/h (5mph)7km/h (4mph)12km/h (7mph)15km/h (9mph)12km/h (7mph)8km/h (5mph)
Direction 135°
SE
17°
NNE
39°
NE
46°
NE
229°
SW
294°
WNW
271°
W
247°
WSW
Wind chill10°C (50°F)10°C (49°F)10°C (49°F)11°C (52°F)11°C (51°F)10°C (51°F)10°C (51°F)11°C (51°F)
Waves
Height1.9m (6.2ft)1.8m (5.9ft)1.6m (5.2ft)1.5m (4.9ft)1.4m (4.6ft)1.3m (4.3ft)1.2m (3.9ft)1.2m (3.9ft)
Direction 284°
WNW
289°
WNW
290°
WNW
291°
WNW
291°
WNW
292°
WNW
290°
WNW
288°
WNW
Period10.8 sec.9.9 sec.9.9 sec.9.9 sec.9.7 sec.9.8 sec.9.8 sec.9.9 sec.
Significant height0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)
Sea water temperature
Water temperature15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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