Half Moon Bay Weather Forecast 15 Days, Weather in Half Moon Bay Today
Current weather conditions and 15 day weather forecast for Half Moon Bay, California, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at Half Moon Bay
| 12 May 2026 Tuesday 13.3 ° C / 55.9°F  Partly cloudy |
Feels Like : 11.9 ° C / 53.5°F Humidity : % 100 Pressure : 1016 mb Wind Speed : 15.5 kmph / 9.6 miles from WNW  Visibility : 11 km Precipitation (rainfall) : 0.01 mm Cloud (%) : 75 |
15 day weather forecast for Half Moon Bay, CA, USA
Weather Forecast for next 15 Days for Half Moon Bay including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in Half Moon Bay, California state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 12 May 2026 Tuesday |  Patchy rain nearby |
9.9 ° C (49.8°F) |
13.1 ° C (55.6°F) |
11.5 ° C (52.8°F) |
% 97 | 89% | 8 | Sunrise:06:03 AM Sunset: 08:10 PM |
Moonrise:03:24 AM Moonset: 03:45 PM Moon Phase ( Waning Crescent ) |
|
| 13 May 2026 Wednesday |  Sunny |
11.2 ° C (52.2°F) |
14.8 ° C (58.6°F) |
13.1 ° C (55.6°F) |
% 81 | 0% | 7.7 | Sunrise:06:02 AM Sunset: 08:10 PM |
Moonrise:03:50 AM Moonset: 04:54 PM Moon Phase ( Waning Crescent ) |
|
| 14 May 2026 Thursday | Sunny |
10 ° C (50°F) |
16.7 ° C (62.1°F) |
13.1 ° C (55.5°F) |
% 78 | 0% | 9.4 | Sunrise:06:01 AM Sunset: 08:11 PM |
Moonrise:04:17 AM Moonset: 06:08 PM Moon Phase ( Waning Crescent ) |
|
| 15 May 2026 Friday | Sunny |
10.7 ° C (51.3°F) |
15.6 ° C (60.1°F) |
12.9 ° C (55.3°F) |
% 76 | 0% | 0 | Sunrise:06:00 AM Sunset: 08:12 PM |
Moonrise:04:49 AM Moonset: 07:25 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday | Sunny |
10.7 ° C (51.3°F) |
13.6 ° C (56.5°F) |
12 ° C (53.6°F) |
% 76 | 0% | 4 | Sunrise:06:00 AM Sunset: 08:13 PM |
Moonrise:05:28 AM Moonset: 08:44 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday | Sunny |
9.7 ° C (49.5°F) |
16 ° C (60.8°F) |
12.4 ° C (54.4°F) |
% 74 | 0% | 4 | Sunrise:05:59 AM Sunset: 08:14 PM |
Moonrise:06:16 AM Moonset: 10:01 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Sunny |
10.9 ° C (51.5°F) |
17.3 ° C (63.2°F) |
13.8 ° C (56.9°F) |
% 72 | 0% | 4 | Sunrise:05:58 AM Sunset: 08:15 PM |
Moonrise:07:16 AM Moonset: 11:09 PM Moon Phase ( Waxing Crescent ) |
|
| 19 May 2026 Tuesday | Sunny |
10.9 ° C (51.7°F) |
17.4 ° C (63.4°F) |
13.7 ° C (56.6°F) |
% 77 | 0% | 4 | Sunrise:05:57 AM Sunset: 08:15 PM |
Moonrise:08:26 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 20 May 2026 Wednesday | Sunny |
10.4 ° C (50.7°F) |
16.9 ° C (62.3°F) |
13.3 ° C (56°F) |
% 77 | 0% | 4 | Sunrise:05:57 AM Sunset: 08:16 PM |
Moonrise:09:41 AM Moonset: 12:05 AM Moon Phase ( Waxing Crescent ) |
|
| 21 May 2026 Thursday | Sunny |
10.2 ° C (50.4°F) |
16.5 ° C (61.7°F) |
13.4 ° C (56.1°F) |
% 80 | 0% | 4 | Sunrise:05:56 AM Sunset: 08:17 PM |
Moonrise:10:55 AM Moonset: 12:49 AM Moon Phase ( Waxing Crescent ) |
|
| 22 May 2026 Friday | Sunny |
11.7 ° C (53°F) |
17.9 ° C (64.3°F) |
14.6 ° C (58.2°F) |
% 79 | 0% | 4 | Sunrise:05:55 AM Sunset: 08:18 PM |
Moonrise:12:06 PM Moonset: 01:25 AM Moon Phase ( Waxing Crescent ) |
|
| 23 May 2026 Saturday | Sunny |
11.7 ° C (53.1°F) |
17.8 ° C (64°F) |
14.4 ° C (57.9°F) |
% 81 | 0% | 4 | Sunrise:05:55 AM Sunset: 08:19 PM |
Moonrise:01:14 PM Moonset: 01:54 AM Moon Phase ( First Quarter ) |
|
| 24 May 2026 Sunday | Partly Cloudy |
10.9 ° C (51.7°F) |
14.5 ° C (58.1°F) |
12.4 ° C (54.3°F) |
% 78 | 0% | 4 | Sunrise:05:54 AM Sunset: 08:19 PM |
Moonrise:02:17 PM Moonset: 02:19 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 May 2026 Monday | Sunny |
9.5 ° C (49.2°F) |
16.5 ° C (61.8°F) |
13.2 ° C (55.8°F) |
% 74 | 0% | 4 | Sunrise:05:54 AM Sunset: 08:20 PM |
Moonrise:03:19 PM Moonset: 02:42 AM Moon Phase ( Waxing Gibbous ) |
|
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