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. | Max wind | Our opinion | Details |
|---|---|---|---|---|
| Thursday 4 December 2025 | 50°F to 56°F | 3.1mph | recommended | all the sea weather |
| Friday 5 December 2025 | 49°F to 56°F | 1.2mph | recommended | all the sea weather |
| Saturday 6 December 2025 | 52°F to 58°F | 1.9mph | recommended | all the sea weather |
| Sunday 7 December 2025 | 49°F to 59°F | 5mph | recommended | all the sea weather |
| Monday 8 December 2025 | 50°F to 59°F | 1.2mph | recommended | all the sea weather |
| Tuesday 9 December 2025 | 54°F to 59°F | 3.7mph | recommended | all the sea weather |
| Wednesday 10 December 2025 | 50°F to 59°F | 5.6mph | recommended | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Half Moon Bay
Sea weather on Thursday 4 December 2025
On Thursday 4 December 2025, the sun will rise at 07:09 and will set at 16:51 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 56°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 7.5mph km/h (with gusts up to 11.2mph). Wave height will be up to 3.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | | |  | | | | |
| Outside temperature | 11°C (52°F) | 11°C (51°F) | 10°C (50°F) | 10°C (50°F) | 12°C (54°F) | 13°C (55°F) | 11°C (51°F) | 12°C (53°F) |
| Perceived temperature | 10°C (51°F) | 10°C (50°F) | 9°C (48°F) | 9°C (47°F) | 11°C (52°F) | 12°C (54°F) | 10°C (49°F) | 12°C (53°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 49% | 47% | 50% | 56% | 49% | 47% | 56% | 57% |
| Barometric pressure | 1020 hPa | 1021 hPa | 1022 hPa | 1024 hPa | 1023 hPa | 1022 hPa | 1023 hPa | 1023 hPa |
| Cloud cover | 6% | 6% | 5% | 9% | 9% | 5% | 4% | 3% |
| Heat index | 11°C (52°F) | 11°C (51°F) | 10°C (50°F) | 10°C (50°F) | 12°C (54°F) | 13°C (55°F) | 11°C (51°F) | 12°C (53°F) |
| Dew point | 1°C (33°F) | -0°C (32°F) | 0°C (32°F) | 2°C (36°F) | 2°C (35°F) | 2°C (36°F) | 2°C (36°F) | 4°C (39°F) |
| Wind | ||||||||
| Speed | 7km/h (4mph) | 7km/h (4mph) | 9km/h (6mph) | 12km/h (7mph) | 10km/h (6mph) | 9km/h (6mph) | 9km/h (5mph) | 5km/h (3mph) |
| Gusts | 14km/h (9mph) | 13km/h (8mph) | 17km/h (10mph) | 17km/h (11mph) | 15km/h (9mph) | 16km/h (10mph) | 18km/h (11mph) | 9km/h (6mph) |
| Direction | 87° E | 71° ENE | 52° NE | 39° NE | 39° NE | 26° NNE | 356° N | 13° NNE |
| Wind chill | 10°C (51°F) | 10°C (50°F) | 9°C (48°F) | 9°C (47°F) | 11°C (52°F) | 12°C (54°F) | 10°C (49°F) | 12°C (53°F) |
| Waves | ||||||||
| Height | 1.1m (3.5ft) | 1.0m (3.4ft) | 1.0m (3.2ft) | 0.9m (3.0ft) | 0.9m (2.9ft) | 0.8m (2.7ft) | 0.8m (2.6ft) | 0.8m (2.6ft) |
| Direction | 270° W | 270° W | 271° W | 271° W | 270° W | 269° W | 269° W | 268° W |
| Period | 13.5 sec. | 13.3 sec. | 12.8 sec. | 12.6 sec. | 12.5 sec. | 12.4 sec. | 12.4 sec. | 12.3 sec. |
| Significant height | 1.0m (3.3ft) | 0.2m (0.7ft) | 1.0m (3.3ft) | 0.9m (3ft) | 0.9m (3ft) | 0.8m (2.6ft) | 0.8m (2.6ft) | 0.7m (2.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 14°C (56°F) |
Sea weather on Friday 5 December 2025
On Friday 5 December 2025, the sun will rise at 07:10 and will set at 16:51 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 56°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 4.4mph km/h (with gusts up to 8.7mph). Wave height will be up to 3.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 12°C (53°F) | 11°C (52°F) | 11°C (51°F) | 12°C (53°F) | 13°C (56°F) | 13°C (56°F) | 9°C (48°F) | 12°C (54°F) |
| Perceived temperature | 12°C (53°F) | 11°C (51°F) | 10°C (50°F) | 11°C (53°F) | 13°C (55°F) | 13°C (55°F) | 9°C (48°F) | 12°C (54°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 57% | 56% | 55% | 50% | 44% | 46% | 57% | 64% |
| Barometric pressure | 1023 hPa | 1022 hPa | 1021 hPa | 1022 hPa | 1021 hPa | 1019 hPa | 1019 hPa | 1020 hPa |
| Cloud cover | 3% | 3% | 7% | 4% | 2% | 3% | 2% | 2% |
| Heat index | 12°C (53°F) | 11°C (52°F) | 11°C (51°F) | 12°C (53°F) | 13°C (56°F) | 13°C (56°F) | 9°C (48°F) | 12°C (54°F) |
| Dew point | 3°C (38°F) | 3°C (37°F) | 2°C (35°F) | 2°C (35°F) | 1°C (34°F) | 2°C (35°F) | 1°C (34°F) | 6°C (43°F) |
| Wind | ||||||||
| Speed | 5km/h (3mph) | 6km/h (4mph) | 6km/h (4mph) | 7km/h (4mph) | 7km/h (4mph) | 7km/h (4mph) | 4km/h (2mph) | 2km/h (1mph) |
| Gusts | 9km/h (5mph) | 11km/h (7mph) | 11km/h (7mph) | 11km/h (7mph) | 12km/h (7mph) | 14km/h (9mph) | 8km/h (5mph) | 3km/h (2mph) |
| Direction | 31° NNE | 45° NE | 49° NE | 32° NNE | 359° N | 318° NW | 336° NNW | 283° WNW |
| Wind chill | 12°C (53°F) | 11°C (51°F) | 10°C (50°F) | 11°C (53°F) | 13°C (55°F) | 13°C (55°F) | 9°C (48°F) | 12°C (54°F) |
| Waves | ||||||||
| Height | 0.8m (2.5ft) | 0.8m (2.5ft) | 0.8m (2.8ft) | 0.9m (2.9ft) | 0.9m (3.0ft) | 1.0m (3.1ft) | 1.0m (3.2ft) | 1.0m (3.4ft) |
| Direction | 269° W | 269° W | 269° W | 269° W | 269° W | 270° W | 270° W | 271° W |
| Period | 12.0 sec. | 12.0 sec. | 8.1 sec. | 7.8 sec. | 7.0 sec. | 7.4 sec. | 7.4 sec. | 7.4 sec. |
| Significant height | 0.6m (2ft) | 0.7m (2.3ft) | 0.6m (2ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.8m (2.6ft) | 0.8m (2.6ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 14°C (56°F) |
Sea weather on Saturday 6 December 2025
On Saturday 6 December 2025, the sun will rise at 07:11 and will set at 16:51 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 58°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 5.6mph km/h (with gusts up to 10.6mph). Wave height will be up to 3.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | |  | | | | | | |
| Outside temperature | 12°C (54°F) | 12°C (53°F) | 12°C (53°F) | 13°C (55°F) | 14°C (57°F) | 13°C (56°F) | 11°C (51°F) | 13°C (55°F) |
| Perceived temperature | 12°C (54°F) | 12°C (54°F) | 11°C (52°F) | 12°C (54°F) | 14°C (56°F) | 13°C (55°F) | 10°C (50°F) | 13°C (55°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 71% | 67% | 62% | 58% | 53% | 63% | 83% | 84% |
| Barometric pressure | 1020 hPa | 1019 hPa | 1020 hPa | 1021 hPa | 1021 hPa | 1019 hPa | 1020 hPa | 1020 hPa |
| Cloud cover | 2% | 0% | 4% | 4% | 5% | 3% | 3% | 5% |
| Heat index | 12°C (54°F) | 12°C (53°F) | 12°C (53°F) | 13°C (55°F) | 14°C (57°F) | 13°C (56°F) | 11°C (51°F) | 13°C (55°F) |
| Dew point | 7°C (45°F) | 6°C (43°F) | 5°C (40°F) | 5°C (41°F) | 5°C (40°F) | 6°C (44°F) | 8°C (46°F) | 10°C (50°F) |
| Wind | ||||||||
| Speed | 2km/h (1mph) | 4km/h (2mph) | 7km/h (4mph) | 8km/h (5mph) | 9km/h (5mph) | 8km/h (5mph) | 8km/h (5mph) | 3km/h (2mph) |
| Gusts | 3km/h (2mph) | 7km/h (4mph) | 13km/h (8mph) | 13km/h (8mph) | 15km/h (9mph) | 16km/h (10mph) | 17km/h (10mph) | 5km/h (3mph) |
| Direction | 221° SW | 80° E | 39° NE | 11° NNE | 341° NNW | 319° NW | 305° NW | 302° WNW |
| Wind chill | 12°C (54°F) | 12°C (54°F) | 11°C (52°F) | 12°C (54°F) | 14°C (56°F) | 13°C (55°F) | 10°C (50°F) | 13°C (55°F) |
| Waves | ||||||||
| Height | 1.0m (3.4ft) | 1.1m (3.7ft) | 1.1m (3.7ft) | 1.1m (3.6ft) | 1.1m (3.5ft) | 1.1m (3.5ft) | 1.1m (3.6ft) | 1.2m (3.8ft) |
| Direction | 270° W | 269° W | 272° W | 272° W | 258° WSW | 258° WSW | 269° W | 268° W |
| Period | 7.1 sec. | 6.8 sec. | 6.8 sec. | 6.6 sec. | 6.3 sec. | 6.1 sec. | 13.6 sec. | 13.4 sec. |
| Significant height | 0.8m (2.6ft) | 0.9m (3ft) | 1.0m (3.3ft) | 0.9m (3ft) | 0.9m (3ft) | 0.9m (3ft) | 0.8m (2.6ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 12°C (53°F) |
Sea weather on Sunday 7 December 2025
On Sunday 7 December 2025, the sun will rise at 07:12 and will set at 16:51 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 59°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 11.8mph). Wave height will be up to 3.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 13°C (56°F) | 13°C (55°F) | 12°C (54°F) | 13°C (56°F) | 15°C (58°F) | 14°C (58°F) | 9°C (49°F) | 12°C (54°F) |
| Perceived temperature | 13°C (56°F) | 12°C (54°F) | 12°C (53°F) | 13°C (56°F) | 14°C (58°F) | 14°C (56°F) | 8°C (46°F) | 12°C (53°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 80% | 80% | 80% | 74% | 66% | 72% | 86% | 88% |
| Barometric pressure | 1020 hPa | 1021 hPa | 1022 hPa | 1023 hPa | 1023 hPa | 1022 hPa | 1023 hPa | 1024 hPa |
| Cloud cover | 100% | 7% | 7% | 30% | 32% | 31% | 0% | 6% |
| Heat index | 13°C (56°F) | 13°C (55°F) | 12°C (54°F) | 13°C (56°F) | 15°C (58°F) | 14°C (58°F) | 9°C (49°F) | 12°C (54°F) |
| Dew point | 10°C (49°F) | 9°C (49°F) | 9°C (48°F) | 9°C (48°F) | 8°C (47°F) | 9°C (49°F) | 7°C (45°F) | 11°C (51°F) |
| Wind | ||||||||
| Speed | 5km/h (3mph) | 6km/h (4mph) | 7km/h (4mph) | 6km/h (4mph) | 9km/h (6mph) | 12km/h (7mph) | 9km/h (6mph) | 8km/h (5mph) |
| Gusts | 9km/h (6mph) | 12km/h (8mph) | 13km/h (8mph) | 10km/h (6mph) | 14km/h (9mph) | 18km/h (11mph) | 19km/h (12mph) | 14km/h (9mph) |
| Direction | 42° NE | 16° NNE | 5° N | 349° NNW | 311° NW | 306° NW | 304° NW | 313° NW |
| Wind chill | 13°C (56°F) | 12°C (54°F) | 12°C (53°F) | 13°C (56°F) | 14°C (58°F) | 14°C (56°F) | 8°C (46°F) | 12°C (53°F) |
| Waves | ||||||||
| Height | 1.2m (4.0ft) | 1.2m (3.9ft) | 1.1m (3.8ft) | 1.1m (3.6ft) | 1.1m (3.5ft) | 1.0m (3.4ft) | 1.1m (3.7ft) | 1.1m (3.8ft) |
| Direction | 265° W | 272° W | 273° W | 273° W | 276° W | 275° W | 273° W | 272° W |
| Period | 6.0 sec. | 12.7 sec. | 12.6 sec. | 12.4 sec. | 12.0 sec. | 11.8 sec. | 11.7 sec. | 11.5 sec. |
| Significant height | 0.9m (3ft) | 0.9m (3ft) | 0.9m (3ft) | 0.9m (3ft) | 0.9m (3ft) | 1.0m (3.3ft) | 1.2m (3.9ft) | 0.8m (2.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 12°C (53°F) |
Sea weather on Monday 8 December 2025
On Monday 8 December 2025, the sun will rise at 07:13 and will set at 16:52 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 59°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 5.6mph km/h (with gusts up to 11.8mph). Wave height will be up to 3.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 12°C (54°F) | 12°C (54°F) | 12°C (53°F) | 13°C (56°F) | 15°C (59°F) | 14°C (56°F) | 10°C (50°F) | 13°C (55°F) |
| Perceived temperature | 13°C (55°F) | 12°C (54°F) | 11°C (53°F) | 13°C (56°F) | 15°C (59°F) | 13°C (55°F) | 9°C (49°F) | 13°C (55°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 86% | 83% | 83% | 75% | 62% | 64% | 79% | 80% |
| Barometric pressure | 1023 hPa | 1023 hPa | 1024 hPa | 1025 hPa | 1024 hPa | 1023 hPa | 1024 hPa | 1024 hPa |
| Cloud cover | 3% | 0% | 0% | 21% | 42% | 3% | 2% | 0% |
| Heat index | 12°C (54°F) | 12°C (54°F) | 12°C (53°F) | 13°C (56°F) | 15°C (59°F) | 14°C (56°F) | 10°C (50°F) | 13°C (55°F) |
| Dew point | 10°C (50°F) | 9°C (49°F) | 9°C (48°F) | 9°C (48°F) | 8°C (46°F) | 7°C (45°F) | 7°C (44°F) | 9°C (49°F) |
| Wind | ||||||||
| Speed | 3km/h (2mph) | 3km/h (2mph) | 6km/h (4mph) | 5km/h (3mph) | 6km/h (4mph) | 9km/h (6mph) | 8km/h (5mph) | 2km/h (1mph) |
| Gusts | 6km/h (4mph) | 6km/h (3mph) | 12km/h (7mph) | 7km/h (5mph) | 10km/h (6mph) | 19km/h (12mph) | 17km/h (10mph) | 4km/h (3mph) |
| Direction | 39° NE | 53° NE | 11° NNE | 31° NNE | 338° NNW | 314° NW | 310° NW | 15° NNE |
| Wind chill | 13°C (55°F) | 12°C (54°F) | 11°C (53°F) | 13°C (56°F) | 15°C (59°F) | 13°C (55°F) | 9°C (49°F) | 13°C (55°F) |
| Waves | ||||||||
| Height | 1.0m (3.3ft) | 0.9m (3.1ft) | 0.9m (2.9ft) | 0.8m (2.7ft) | 0.8m (2.8ft) | 0.9m (2.9ft) | 1.0m (3.4ft) | 1.2m (3.8ft) |
| Direction | 270° W | 268° W | 265° W | 260° W | 255° WSW | 250° WSW | 276° W | 283° WNW |
| Period | 5.3 sec. | 5.2 sec. | 5.3 sec. | 11.2 sec. | 5.8 sec. | 5.7 sec. | 7.0 sec. | 7.1 sec. |
| Significant height | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.9m (3ft) | 0.5m (1.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 12°C (53°F) |
Sea weather on Tuesday 9 December 2025
On Tuesday 9 December 2025, the sun will rise at 07:13 and will set at 16:52 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 5mph km/h (with gusts up to 9.9mph). Wave height will be up to 4.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | | | |
| Outside temperature | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 14°C (57°F) | 15°C (59°F) | 14°C (57°F) | 13°C (55°F) | 13°C (56°F) |
| Perceived temperature | 13°C (56°F) | 13°C (55°F) | 12°C (54°F) | 14°C (58°F) | 15°C (59°F) | 14°C (56°F) | 12°C (54°F) | 13°C (56°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 73% | 72% | 73% | 68% | 63% | 71% | 81% | 85% |
| Barometric pressure | 1024 hPa | 1023 hPa | 1023 hPa | 1024 hPa | 1022 hPa | 1021 hPa | 1021 hPa | 1021 hPa |
| Cloud cover | 0% | 0% | 0% | 2% | 3% | 4% | 4% | 3% |
| Heat index | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 14°C (57°F) | 15°C (59°F) | 14°C (57°F) | 13°C (55°F) | 13°C (56°F) |
| Dew point | 8°C (47°F) | 8°C (46°F) | 8°C (46°F) | 8°C (47°F) | 8°C (46°F) | 9°C (48°F) | 10°C (49°F) | 11°C (52°F) |
| Wind | ||||||||
| Speed | 5km/h (3mph) | 5km/h (3mph) | 6km/h (4mph) | 5km/h (3mph) | 6km/h (4mph) | 8km/h (5mph) | 7km/h (4mph) | 6km/h (4mph) |
| Gusts | 10km/h (6mph) | 10km/h (6mph) | 13km/h (8mph) | 9km/h (6mph) | 12km/h (7mph) | 16km/h (10mph) | 15km/h (9mph) | 13km/h (8mph) |
| Direction | 54° NE | 35° NE | 21° NNE | 19° NNE | 237° WSW | 324° NW | 321° NW | 321° NW |
| Wind chill | 13°C (56°F) | 13°C (55°F) | 12°C (54°F) | 14°C (58°F) | 15°C (59°F) | 14°C (56°F) | 12°C (54°F) | 13°C (56°F) |
| Waves | ||||||||
| Height | 1.2m (4.0ft) | 1.3m (4.1ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.4m (4.6ft) |
| Direction | 289° WNW | 290° WNW | 284° WNW | 283° WNW | 284° WNW | 281° WNW | 280° W | 280° W |
| Period | 7.2 sec. | 7.5 sec. | 7.6 sec. | 7.5 sec. | 7.3 sec. | 10.2 sec. | 8.7 sec. | 10.2 sec. |
| Significant height | 0.4m (1.3ft) | 0.3m (1ft) | 0.3m (1ft) | 0.3m (1ft) | 0.8m (2.6ft) | 1.1m (3.6ft) | 1.0m (3.3ft) | 1.1m (3.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 12°C (53°F) | 12°C (53°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 10 December 2025
On Wednesday 10 December 2025, the sun will rise at 07:14 and will set at 16:52 on the beach(es) of Half Moon Bay. The outside temperature will be a high of 59°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 6.2mph km/h (with gusts up to 13.7mph). Wave height will be up to 5.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 14°C (57°F) | 14°C (56°F) | 13°C (56°F) | 15°C (58°F) | 14°C (58°F) | 13°C (56°F) | 11°C (52°F) | 13°C (55°F) |
| Perceived temperature | 14°C (56°F) | 13°C (56°F) | 13°C (56°F) | 15°C (58°F) | 14°C (57°F) | 13°C (55°F) | 10°C (50°F) | 12°C (54°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 89% | 91% | 92% | 86% | 79% | 78% | 84% | 89% |
| Barometric pressure | 1021 hPa | 1020 hPa | 1021 hPa | 1021 hPa | 1020 hPa | 1019 hPa | 1018 hPa | 1018 hPa |
| Cloud cover | 5% | 6% | 10% | 9% | 2% | 0% | 0% | 0% |
| Heat index | 14°C (57°F) | 14°C (56°F) | 13°C (56°F) | 15°C (58°F) | 14°C (58°F) | 13°C (56°F) | 11°C (52°F) | 13°C (55°F) |
| Dew point | 12°C (54°F) | 12°C (54°F) | 12°C (54°F) | 12°C (54°F) | 11°C (51°F) | 10°C (49°F) | 9°C (48°F) | 11°C (51°F) |
| Wind | ||||||||
| Speed | 8km/h (5mph) | 8km/h (5mph) | 6km/h (4mph) | 6km/h (4mph) | 10km/h (6mph) | 10km/h (6mph) | 10km/h (6mph) | 9km/h (6mph) |
| Gusts | 15km/h (10mph) | 15km/h (10mph) | 13km/h (8mph) | 11km/h (7mph) | 20km/h (13mph) | 22km/h (14mph) | 21km/h (13mph) | 19km/h (12mph) |
| Direction | 327° NNW | 322° NW | 325° NW | 333° NNW | 332° NNW | 320° NW | 316° NW | 325° NW |
| Wind chill | 14°C (56°F) | 13°C (56°F) | 13°C (56°F) | 15°C (58°F) | 14°C (57°F) | 13°C (55°F) | 10°C (50°F) | 12°C (54°F) |
| Waves | ||||||||
| Height | 1.5m (4.9ft) | 1.5m (4.9ft) | 1.6m (5.2ft) | 1.7m (5.6ft) | 1.8m (5.9ft) | 1.8m (5.9ft) | 1.8m (5.9ft) | 1.8m (5.9ft) |
| Direction | 284° WNW | 278° W | 274° W | 275° W | 275° W | 275° W | 273° W | 271° W |
| Period | 11.4 sec. | 11.1 sec. | 11.0 sec. | 10.7 sec. | 13.2 sec. | 14.4 sec. | 14.2 sec. | 14.1 sec. |
| Significant height | 1.1m (3.6ft) | 0.5m (1.6ft) | 0.3m (1ft) | 0.3m (1ft) | 0.3m (1ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.3m (1ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 14°C (56°F) |