Current weather conditions and 15 day weather forecast for US Coast Guard Base Alameda Helipad, 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.
| 18 December 2025 Thursday 10.6 ° C / 51.1°F ![]() Fog |
Feels Like : 10.7 ° C / 51.2°F Humidity : % 92 Pressure : 1021 mb Wind Speed : 4.3 kmph / 2.7 miles from W ![]() Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 18 December 2025 Thursday | Overcast |
7.8 ° C (46°F) |
13.7 ° C (56.7°F) |
11.5 ° C (52.7°F) |
% 87 | 0% | 0.4 | Sunrise:07:19 AM Sunset: 04:52 PM |
Moonrise:06:26 AM Moonset: 03:35 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday | Overcast |
11.6 ° C (52.9°F) |
13.4 ° C (56.1°F) |
12.3 ° C (54.2°F) |
% 92 | 0% | 0.4 | Sunrise:07:20 AM Sunset: 04:53 PM |
Moonrise:07:23 AM Moonset: 04:24 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday | Patchy rain nearby |
10.7 ° C (51.3°F) |
17 ° C (62.6°F) |
13.4 ° C (56.1°F) |
% 86 | 72% | 0.3 | Sunrise:07:20 AM Sunset: 04:53 PM |
Moonrise:08:14 AM Moonset: 05:21 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Moderate rain |
12.7 ° C (54.9°F) |
14.6 ° C (58.3°F) |
14.1 ° C (57.4°F) |
% 96 | 87% | 0.1 | Sunrise:07:21 AM Sunset: 04:54 PM |
Moonrise:08:59 AM Moonset: 06:21 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Patchy rain nearby |
11.5 ° C (52.7°F) |
15.2 ° C (59.4°F) |
13 ° C (55.4°F) |
% 76 | 83% | 0 | Sunrise:07:21 AM Sunset: 04:54 PM |
Moonrise:09:37 AM Moonset: 07:26 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Patchy rain nearby |
11.5 ° C (52.6°F) |
13.3 ° C (55.9°F) |
12.3 ° C (54.1°F) |
% 85 | 85% | 3 | Sunrise:07:22 AM Sunset: 04:55 PM |
Moonrise:10:08 AM Moonset: 08:30 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Moderate rain |
9.2 ° C (48.5°F) |
14.7 ° C (58.5°F) |
11.9 ° C (53.4°F) |
% 89 | 87% | 3 | Sunrise:07:22 AM Sunset: 04:55 PM |
Moonrise:10:36 AM Moonset: 09:35 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Moderate rain |
9 ° C (48.2°F) |
11.8 ° C (53.3°F) |
10 ° C (50°F) |
% 85 | 86% | 3 | Sunrise:07:23 AM Sunset: 04:56 PM |
Moonrise:11:02 AM Moonset: 10:39 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Patchy rain nearby |
7.8 ° C (46°F) |
11.2 ° C (52.2°F) |
9.4 ° C (48.9°F) |
% 85 | 81% | 2 | Sunrise:07:23 AM Sunset: 04:57 PM |
Moonrise:11:26 AM Moonset: 11:45 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Sunny |
7.1 ° C (44.7°F) |
11.1 ° C (51.9°F) |
8.6 ° C (47.5°F) |
% 79 | 0% | 3 | Sunrise:07:23 AM Sunset: 04:57 PM |
Moonrise:11:50 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Patchy rain nearby |
7.6 ° C (45.7°F) |
11.8 ° C (53.2°F) |
9.5 ° C (49°F) |
% 77 | 0% | 2 | Sunrise:07:24 AM Sunset: 04:58 PM |
Moonrise:12:16 PM Moonset: 12:53 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Patchy rain nearby |
8.4 ° C (47.1°F) |
12.5 ° C (54.5°F) |
10.6 ° C (51.1°F) |
% 79 | 84% | 3 | Sunrise:07:24 AM Sunset: 04:59 PM |
Moonrise:12:46 PM Moonset: 02:04 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Overcast |
7.8 ° C (46°F) |
13.1 ° C (55.6°F) |
10.6 ° C (51°F) |
% 76 | 0% | 3 | Sunrise:07:24 AM Sunset: 05:00 PM |
Moonrise:01:23 PM Moonset: 03:19 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Sunny |
8.8 ° C (47.9°F) |
15.2 ° C (59.4°F) |
11.6 ° C (52.9°F) |
% 80 | 0% | 4 | Sunrise:07:24 AM Sunset: 05:00 PM |
Moonrise:02:08 PM Moonset: 04:36 AM Moon Phase ( Waxing Gibbous ) |
|