Current weather conditions and 15 day weather forecast for Sutter Medical Center Castro Valley Heliport, 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.
| 15 December 2025 Monday 5.6 ° C / 42.1°F ![]() Overcast |
Feels Like : 5.2 ° C / 41.4°F Humidity : % 89 Pressure : 1025 mb Wind Speed : 4 kmph / 2.5 miles from NNE ![]() Visibility : 14 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 15 December 2025 Monday | Sunny |
3.5 ° C (38.3°F) |
15.5 ° C (59.9°F) |
8.5 ° C (47.3°F) |
% 76 | 0% | 0.4 | Sunrise:07:17 AM Sunset: 04:51 PM |
Moonrise:03:25 AM Moonset: 01:49 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday | Fog |
8.6 ° C (47.5°F) |
15 ° C (59°F) |
12.1 ° C (53.8°F) |
% 96 | 0% | 0.4 | Sunrise:07:17 AM Sunset: 04:51 PM |
Moonrise:04:25 AM Moonset: 02:18 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday | Mist |
9.3 ° C (48.8°F) |
15.1 ° C (59.2°F) |
13.2 ° C (55.8°F) |
% 91 | 0% | 0.4 | Sunrise:07:18 AM Sunset: 04:52 PM |
Moonrise:05:26 AM Moonset: 02:53 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Sunny |
8.8 ° C (47.8°F) |
16.7 ° C (62.1°F) |
11.7 ° C (53.1°F) |
% 64 | 0% | 0.5 | Sunrise:07:19 AM Sunset: 04:52 PM |
Moonrise:06:26 AM Moonset: 03:35 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday | Patchy rain nearby |
9.8 ° C (49.6°F) |
16.8 ° C (62.3°F) |
12.4 ° C (54.3°F) |
% 83 | 65% | 0 | Sunrise:07:19 AM Sunset: 04:52 PM |
Moonrise:07:23 AM Moonset: 04:24 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday | Cloudy |
12.4 ° C (54.2°F) |
16.4 ° C (61.5°F) |
14.1 ° C (57.3°F) |
% 84 | 0% | 3 | Sunrise:07:20 AM Sunset: 04:53 PM |
Moonrise:08:13 AM Moonset: 05:20 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Moderate rain |
13.7 ° C (56.7°F) |
15.1 ° C (59.2°F) |
14.5 ° C (58°F) |
% 91 | 89% | 3 | Sunrise:07:20 AM Sunset: 04:53 PM |
Moonrise:08:58 AM Moonset: 06:21 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Moderate rain |
13.6 ° C (56.5°F) |
14.6 ° C (58.2°F) |
14.1 ° C (57.3°F) |
% 92 | 85% | 3 | Sunrise:07:21 AM Sunset: 04:54 PM |
Moonrise:09:36 AM Moonset: 07:25 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Overcast |
12.8 ° C (55°F) |
16.2 ° C (61.2°F) |
14.3 ° C (57.7°F) |
% 80 | 0% | 3 | Sunrise:07:21 AM Sunset: 04:54 PM |
Moonrise:10:08 AM Moonset: 08:30 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Moderate rain |
13.6 ° C (56.5°F) |
14.9 ° C (58.8°F) |
14.1 ° C (57.4°F) |
% 86 | 81% | 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 | Partly Cloudy |
12.8 ° C (55.1°F) |
18.5 ° C (65.4°F) |
14.7 ° C (58.5°F) |
% 85 | 0% | 4 | Sunrise:07:22 AM Sunset: 04:56 PM |
Moonrise:11:01 AM Moonset: 10:39 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Sunny |
11.5 ° C (52.6°F) |
18.3 ° C (64.9°F) |
14.2 ° C (57.6°F) |
% 82 | 0% | 4 | Sunrise:07:22 AM Sunset: 04:56 PM |
Moonrise:11:25 AM Moonset: 11:45 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Patchy rain nearby |
11.8 ° C (53.2°F) |
15.5 ° C (59.9°F) |
14.2 ° C (57.6°F) |
% 84 | 76% | 3 | Sunrise:07:23 AM Sunset: 04:57 PM |
Moonrise:11:50 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Mist |
10.6 ° C (51.2°F) |
17 ° C (62.7°F) |
13.5 ° C (56.4°F) |
% 81 | 0% | 3 | Sunrise:07:23 AM Sunset: 04:58 PM |
Moonrise:12:15 PM Moonset: 12:52 AM Moon Phase ( Waxing Gibbous ) |
|