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
Friday 20 December 202449°F to 58°Frecommended
Saturday 21 December 202454°F to 56°Fdiscouraged
Sunday 22 December 202454°F to 58°Frecommended
Monday 23 December 202456°F to 61°Frecommended
Tuesday 24 December 202449°F to 58°Fdiscouraged
Wednesday 25 December 202449°F to 52°Frecommended
Thursday 26 December 202450°F to 54°Fdiscouraged

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

Sea weather on Friday 20 December 2024

On Friday 20 December 2024, the sun will rise at 07:21 and will set at 16:55 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 58°F t and a low of 49°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 7.5mph km/h (with gusts up to 14.9mph). Wave height will be up to 5.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (51°F)10°C (50°F)10°C (50°F)11°C (52°F)13°C (56°F)14°C (56°F)12°C (53°F)12°C (53°F)
Perceived temperature9°C (48°F)9°C (47°F)9°C (48°F)10°C (51°F)13°C (55°F)13°C (56°F)12°C (54°F)11°C (51°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%76%73%67%60%63%69%79%
Barometric pressure1019 hPa1019 hPa1019 hPa1021 hPa1019 hPa1018 hPa1019 hPa1019 hPa
Cloud cover79%32%6%30%33%20%24%46%
Heat index10°C (51°F)10°C (50°F)10°C (50°F)11°C (52°F)13°C (56°F)14°C (56°F)12°C (53°F)12°C (53°F)
Dew point7°C (44°F)6°C (43°F)6°C (42°F)5°C (41°F)6°C (42°F)7°C (44°F)6°C (44°F)8°C (47°F)
Wind
Speed12km/h (7mph)12km/h (7mph)10km/h (6mph)7km/h (4mph)7km/h (4mph)7km/h (4mph)4km/h (3mph)10km/h (6mph)
Gusts24km/h (15mph)24km/h (15mph)20km/h (13mph)14km/h (9mph)13km/h (8mph)13km/h (8mph)9km/h (6mph)20km/h (12mph)
Direction 60°
ENE
70°
ENE
67°
ENE
60°
ENE
66°
ENE
70°
ENE
297°
WNW
125°
SE
Wind chill9°C (48°F)9°C (47°F)9°C (48°F)10°C (51°F)13°C (55°F)13°C (56°F)12°C (54°F)11°C (51°F)
Waves
Height1.4m (4.7ft)1.5m (4.8ft)1.5m (5.0ft)1.5m (5.0ft)1.5m (5.0ft)1.5m (4.8ft)1.5m (4.8ft)1.6m (5.2ft)
Direction 269°
W
269°
W
270°
W
269°
W
270°
W
270°
W
269°
W
269°
W
Period16.0 sec.15.5 sec.15.2 sec.13.8 sec.12.8 sec.12.4 sec.14.9 sec.14.5 sec.
Significant height0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.4m (1.3ft)0.5m (1.6ft)0.1m (0.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature10°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 (50°F)10°C (50°F)

Sea weather on Saturday 21 December 2024

On Saturday 21 December 2024, the sun will rise at 07:21 and will set at 16:56 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 56°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 13.7mph km/h (with gusts up to 24.2mph). Wave height will be up to 11.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (54°F)12°C (54°F)12°C (54°F)13°C (55°F)12°C (53°F)12°C (54°F)12°C (53°F)12°C (54°F)
Perceived temperature11°C (51°F)11°C (52°F)10°C (50°F)11°C (52°F)12°C (53°F)12°C (54°F)12°C (53°F)12°C (54°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%80%88%92%91%90%93%92%
Barometric pressure1018 hPa1019 hPa1018 hPa1019 hPa1021 hPa1020 hPa1021 hPa1021 hPa
Cloud cover96%48%93%100%100%100%100%100%
Heat index12°C (54°F)12°C (54°F)12°C (54°F)13°C (55°F)12°C (53°F)12°C (54°F)12°C (53°F)12°C (54°F)
Dew point9°C (48°F)9°C (48°F)10°C (51°F)12°C (53°F)10°C (50°F)11°C (52°F)11°C (51°F)11°C (52°F)
Wind
Speed16km/h (10mph)13km/h (8mph)22km/h (14mph)21km/h (13mph)5km/h (3mph)5km/h (3mph)3km/h (2mph)3km/h (2mph)
Gusts29km/h (18mph)24km/h (15mph)39km/h (24mph)33km/h (21mph)8km/h (5mph)9km/h (5mph)5km/h (3mph)5km/h (3mph)
Direction 134°
SE
166°
SSE
163°
SSE
194°
SSW
44°
NE
124°
ESE
343°
NNW
12°
NNE
Wind chill11°C (51°F)11°C (52°F)10°C (50°F)11°C (52°F)12°C (53°F)12°C (54°F)12°C (53°F)12°C (54°F)
Waves
Height1.8m (5.8ft)2.0m (6.6ft)2.1m (7.1ft)2.2m (7.4ft)2.3m (7.6ft)2.7m (8.8ft)3.2m (10.4ft)3.5m (11.4ft)
Direction 269°
W
268°
W
267°
W
262°
W
262°
W
264°
W
263°
W
263°
W
Period14.2 sec.14.1 sec.13.8 sec.17.3 sec.17.4 sec.16.9 sec.16.4 sec.15.9 sec.
Significant height0.7m (2.3ft)0.8m (2.6ft)1.0m (3.3ft)0.8m (2.6ft)0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.1m (0.3ft)
Sea water temperature
Water temperature10°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 (50°F)10°C (50°F)

Sea weather on Sunday 22 December 2024

On Sunday 22 December 2024, the sun will rise at 07:22 and will set at 16:56 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 58°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 4.4mph km/h (with gusts up to 6.8mph). Wave height will be up to 11.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (54°F)12°C (54°F)12°C (54°F)13°C (55°F)14°C (56°F)14°C (57°F)13°C (55°F)13°C (56°F)
Perceived temperature13°C (55°F)13°C (55°F)12°C (54°F)13°C (55°F)13°C (56°F)14°C (57°F)13°C (55°F)14°C (57°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity91%92%91%90%82%78%87%85%
Barometric pressure1020 hPa1020 hPa1021 hPa1022 hPa1020 hPa1020 hPa1020 hPa1021 hPa
Cloud cover100%100%94%81%21%20%50%100%
Heat index12°C (54°F)12°C (54°F)12°C (54°F)13°C (55°F)14°C (56°F)14°C (57°F)13°C (55°F)13°C (56°F)
Dew point11°C (52°F)11°C (52°F)11°C (51°F)11°C (52°F)11°C (51°F)10°C (51°F)11°C (51°F)11°C (52°F)
Wind
Speed4km/h (2mph)4km/h (2mph)5km/h (3mph)5km/h (3mph)7km/h (4mph)1km/h (0mph)5km/h (3mph)4km/h (2mph)
Gusts6km/h (4mph)6km/h (4mph)8km/h (5mph)7km/h (5mph)11km/h (7mph)1km/h (1mph)9km/h (6mph)7km/h (4mph)
Direction 70°
ENE

N
56°
NE
46°
NE
79°
E
162°
SSE
146°
SSE
163°
SSE
Wind chill13°C (55°F)13°C (55°F)12°C (54°F)13°C (55°F)13°C (56°F)14°C (57°F)13°C (55°F)14°C (57°F)
Waves
Height3.5m (11.5ft)3.4m (11.3ft)3.3m (10.8ft)3.1m (10.2ft)2.9m (9.4ft)2.7m (8.7ft)2.4m (8.0ft)2.3m (7.6ft)
Direction 263°
W
261°
W
262°
W
262°
W
263°
W
263°
W
263°
W
264°
W
Period15.3 sec.16.3 sec.16.0 sec.15.7 sec.15.6 sec.15.4 sec.15.3 sec.15.1 sec.
Significant height0.3m (1ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)
Sea water temperature
Water temperature10°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 (50°F)10°C (50°F)

Sea weather on Monday 23 December 2024

On Monday 23 December 2024, the sun will rise at 07:22 and will set at 16:57 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 11.2mph). Wave height will be up to 13.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (56°F)14°C (56°F)13°C (56°F)14°C (56°F)15°C (59°F)16°C (60°F)14°C (58°F)14°C (57°F)
Perceived temperature14°C (57°F)14°C (57°F)13°C (55°F)13°C (56°F)15°C (59°F)16°C (60°F)15°C (58°F)14°C (57°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity82%83%83%81%73%72%78%82%
Barometric pressure1021 hPa1021 hPa1021 hPa1021 hPa1021 hPa1020 hPa1019 hPa1019 hPa
Cloud cover92%100%65%35%42%39%79%51%
Heat index14°C (56°F)14°C (56°F)13°C (56°F)14°C (56°F)15°C (59°F)16°C (60°F)14°C (58°F)14°C (57°F)
Dew point11°C (51°F)11°C (51°F)10°C (51°F)10°C (51°F)10°C (51°F)11°C (51°F)10°C (51°F)11°C (52°F)
Wind
Speed4km/h (2mph)5km/h (3mph)6km/h (4mph)7km/h (4mph)5km/h (3mph)3km/h (2mph)5km/h (3mph)9km/h (5mph)
Gusts7km/h (4mph)8km/h (5mph)12km/h (8mph)13km/h (8mph)8km/h (5mph)5km/h (3mph)11km/h (7mph)18km/h (11mph)
Direction 106°
ESE
83°
E
77°
ENE
86°
E
50°
NE
62°
ENE
115°
ESE
153°
SSE
Wind chill14°C (57°F)14°C (57°F)13°C (55°F)13°C (56°F)15°C (59°F)16°C (60°F)15°C (58°F)14°C (57°F)
Waves
Height2.4m (7.8ft)2.6m (8.5ft)3.1m (10.2ft)3.7m (12.1ft)4.1m (13.4ft)4.1m (13.5ft)3.9m (12.7ft)3.5m (11.5ft)
Direction 265°
W
265°
W
265°
W
261°
W
261°
W
261°
W
261°
W
262°
W
Period15.1 sec.15.4 sec.15.8 sec.18.4 sec.21.6 sec.20.3 sec.19.8 sec.19.0 sec.
Significant height0.2m (0.7ft)0.3m (1ft)0.2m (0.7ft)0.1m (0.3ft)0.1m (0.3ft)0.2m (0.7ft)0.3m (1ft)0.3m (1ft)
Sea water temperature
Water temperature12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)

Sea weather on Tuesday 24 December 2024

On Tuesday 24 December 2024, the sun will rise at 07:23 and will set at 16:57 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 58°F t and a low of 49°F. Precipitation is in the forecast (0.2in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 15.5mph km/h (with gusts up to 24.2mph). Wave height will be up to 11.5ft 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)12°C (53°F)13°C (55°F)12°C (53°F)10°C (50°F)10°C (51°F)
Perceived temperature13°C (56°F)12°C (54°F)12°C (54°F)9°C (48°F)10°C (50°F)9°C (49°F)7°C (44°F)8°C (46°F)
Precipitation0in0in0.1in0in0in0in0in0in
Humidity82%85%97%90%82%83%84%84%
Barometric pressure1018 hPa1017 hPa1016 hPa1017 hPa1018 hPa1020 hPa1021 hPa1022 hPa
Cloud cover47%63%100%100%79%81%11%4%
Heat index14°C (57°F)14°C (57°F)14°C (57°F)12°C (53°F)13°C (55°F)12°C (53°F)10°C (50°F)10°C (51°F)
Dew point11°C (51°F)11°C (52°F)13°C (56°F)10°C (50°F)10°C (49°F)9°C (48°F)7°C (45°F)8°C (46°F)
Wind
Speed9km/h (5mph)16km/h (10mph)18km/h (11mph)25km/h (15mph)25km/h (15mph)22km/h (14mph)25km/h (16mph)20km/h (13mph)
Gusts18km/h (11mph)32km/h (20mph)31km/h (19mph)39km/h (24mph)37km/h (23mph)34km/h (21mph)29km/h (18mph)32km/h (20mph)
Direction 184°
S
146°
SE
198°
SSW
269°
W
271°
W
286°
WNW
292°
WNW
308°
NW
Wind chill13°C (56°F)12°C (54°F)12°C (54°F)9°C (48°F)10°C (50°F)9°C (49°F)7°C (44°F)8°C (46°F)
Waves
Height3.2m (10.5ft)3.0m (9.7ft)2.9m (9.6ft)3.0m (9.8ft)3.0m (9.8ft)2.9m (9.7ft)3.5m (11.4ft)3.4m (11.3ft)
Direction 262°
W
262°
W
263°
W
264°
W
265°
W
265°
W
267°
W
267°
W
Period18.7 sec.18.5 sec.17.7 sec.17.4 sec.16.9 sec.16.4 sec.16.0 sec.15.8 sec.
Significant height0.5m (1.6ft)0.6m (2ft)0.9m (3ft)0.5m (1.6ft)0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature10°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 (50°F)10°C (50°F)

Sea weather on Wednesday 25 December 2024

On Wednesday 25 December 2024, the sun will rise at 07:23 and will set at 16:58 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 52°F t and a low of 49°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 13.7mph). Wave height will be up to 11.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (50°F)9°C (48°F)9°C (48°F)10°C (50°F)11°C (51°F)10°C (50°F)10°C (49°F)10°C (49°F)
Perceived temperature8°C (46°F)8°C (46°F)8°C (47°F)9°C (48°F)10°C (49°F)9°C (48°F)8°C (47°F)9°C (48°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity85%83%82%75%65%65%74%80%
Barometric pressure1023 hPa1023 hPa1023 hPa1024 hPa1022 hPa1021 hPa1021 hPa1021 hPa
Cloud cover3%0%4%3%4%7%17%22%
Heat index10°C (50°F)9°C (48°F)9°C (48°F)10°C (50°F)11°C (51°F)10°C (50°F)10°C (49°F)10°C (49°F)
Dew point7°C (45°F)6°C (44°F)6°C (43°F)6°C (42°F)4°C (40°F)4°C (39°F)5°C (41°F)6°C (43°F)
Wind
Speed14km/h (9mph)8km/h (5mph)6km/h (4mph)8km/h (5mph)9km/h (6mph)11km/h (7mph)9km/h (5mph)6km/h (4mph)
Gusts22km/h (14mph)12km/h (8mph)11km/h (7mph)11km/h (7mph)14km/h (9mph)19km/h (12mph)15km/h (10mph)10km/h (6mph)
Direction 327°
NNW

N
223°
SW
330°
NNW
316°
NW
306°
NW
311°
NW
295°
WNW
Wind chill8°C (46°F)8°C (46°F)8°C (47°F)9°C (48°F)10°C (49°F)9°C (48°F)8°C (47°F)9°C (48°F)
Waves
Height3.4m (11.0ft)3.3m (10.7ft)3.1m (10.2ft)3.0m (9.8ft)2.9m (9.5ft)2.7m (8.9ft)2.6m (8.5ft)2.4m (7.9ft)
Direction 267°
W
266°
W
266°
W
266°
W
266°
W
266°
W
266°
W
265°
W
Period15.5 sec.15.3 sec.14.7 sec.14.2 sec.13.9 sec.13.7 sec.13.6 sec.13.6 sec.
Significant height0.4m (1.3ft)0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)0.2m (0.7ft)
Sea water temperature
Water temperature12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)

Sea weather on Thursday 26 December 2024

On Thursday 26 December 2024, the sun will rise at 07:24 and will set at 16:59 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 14.9mph km/h (with gusts up to 23mph). Wave height will be up to 12.8ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (50°F)10°C (50°F)10°C (51°F)11°C (52°F)12°C (53°F)12°C (54°F)12°C (53°F)11°C (52°F)
Perceived temperature10°C (50°F)9°C (49°F)9°C (48°F)9°C (48°F)9°C (48°F)10°C (50°F)11°C (51°F)11°C (51°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%84%78%74%84%91%91%90%
Barometric pressure1021 hPa1020 hPa1019 hPa1018 hPa1017 hPa1017 hPa1018 hPa1018 hPa
Cloud cover41%39%78%100%100%66%47%34%
Heat index10°C (50°F)10°C (50°F)10°C (51°F)11°C (52°F)12°C (53°F)12°C (54°F)12°C (53°F)11°C (52°F)
Dew point7°C (45°F)8°C (46°F)7°C (44°F)7°C (44°F)9°C (48°F)11°C (51°F)10°C (50°F)10°C (49°F)
Wind
Speed5km/h (3mph)7km/h (4mph)12km/h (7mph)17km/h (11mph)24km/h (15mph)19km/h (12mph)10km/h (6mph)7km/h (4mph)
Gusts7km/h (4mph)11km/h (7mph)19km/h (12mph)26km/h (16mph)37km/h (23mph)31km/h (19mph)19km/h (12mph)13km/h (8mph)
Direction 260°
W
170°
S
146°
SSE
169°
S
196°
SSW
233°
SW
267°
W
277°
W
Wind chill10°C (50°F)9°C (49°F)9°C (48°F)9°C (48°F)9°C (48°F)10°C (50°F)11°C (51°F)11°C (51°F)
Waves
Height2.2m (7.2ft)2.1m (6.9ft)2.3m (7.5ft)2.9m (9.5ft)3.6m (11.8ft)3.9m (12.8ft)3.9m (12.8ft)3.9m (12.8ft)
Direction 265°
W
265°
W
268°
W
271°
W
270°
W
269°
W
268°
W
267°
W
Period13.6 sec.13.6 sec.14.1 sec.15.2 sec.15.3 sec.15.3 sec.15.2 sec.14.8 sec.
Significant height0.3m (1ft)0.7m (2.3ft)1.1m (3.6ft)1.5m (4.9ft)1.6m (5.2ft)1.1m (3.6ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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