San Ramon Weather Forecast 15 Days, Weather in San Ramon Today
Current weather conditions and 15 day weather forecast for San Ramon, 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 San Ramon
| 20 December 2025 Saturday 14.4 ° C / 57.9°F  Light rain |
Feels Like : 13.9 ° C / 57°F Humidity : % 87 Pressure : 1017 mb Wind Speed : 10.1 kmph / 6.3 miles from SW  Visibility : 16 km Precipitation (rainfall) : 0.05 mm Cloud (%) : 100 |
15 day weather forecast for San Ramon, CA, USA
Weather Forecast for next 15 Days for San Ramon 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 San Ramon, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 19 December 2025 Friday |  Moderate rain |
9.9 ° C (49.8°F) |
17 ° C (62.6°F) |
13.1 ° C (55.5°F) |
% 90 | 87% | 0.4 | Sunrise:07:19 AM Sunset: 04:52 PM |
Moonrise:07:23 AM Moonset: 04:23 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday |  Heavy rain |
12.1 ° C (53.8°F) |
15 ° C (59°F) |
13.7 ° C (56.6°F) |
% 96 | 88% | 0.4 | Sunrise:07:20 AM Sunset: 04:52 PM |
Moonrise:08:13 AM Moonset: 05:19 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Heavy rain |
13.4 ° C (56.1°F) |
14.2 ° C (57.6°F) |
13.8 ° C (56.8°F) |
% 96 | 89% | 0 | Sunrise:07:20 AM Sunset: 04:53 PM |
Moonrise:08:58 AM Moonset: 06:20 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Heavy rain |
10.4 ° C (50.7°F) |
13 ° C (55.4°F) |
12.2 ° C (54°F) |
% 96 | 87% | 0.1 | Sunrise:07:21 AM Sunset: 04:53 PM |
Moonrise:09:36 AM Moonset: 07:25 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Moderate rain |
10.1 ° C (50.2°F) |
14.9 ° C (58.7°F) |
12 ° C (53.7°F) |
% 88 | 83% | 0.2 | Sunrise:07:21 AM Sunset: 04:54 PM |
Moonrise:10:07 AM Moonset: 08:29 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Moderate rain |
9.6 ° C (49.4°F) |
12.3 ° C (54.1°F) |
12.4 ° C (54.3°F) |
% 78 | 83% | 0 | Sunrise:07:21 AM Sunset: 04:54 PM |
Moonrise:10:35 AM Moonset: 09:34 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Moderate rain |
7.9 ° C (46.2°F) |
11 ° C (51.9°F) |
9.6 ° C (49.4°F) |
% 80 | 85% | 2 | Sunrise:07:22 AM Sunset: 04:55 PM |
Moonrise:11:01 AM Moonset: 10:38 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Patchy rain nearby |
7.3 ° C (45.1°F) |
10.7 ° C (51.3°F) |
8.6 ° C (47.5°F) |
% 79 | 79% | 2 | Sunrise:07:22 AM Sunset: 04:56 PM |
Moonrise:11:25 AM Moonset: 11:44 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Patchy rain nearby |
6.3 ° C (43.4°F) |
11.5 ° C (52.7°F) |
8.2 ° C (46.7°F) |
% 80 | 86% | 2 | Sunrise:07:23 AM Sunset: 04:56 PM |
Moonrise:11:49 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday |  Partly Cloudy |
4.7 ° C (40.4°F) |
10.6 ° C (51.1°F) |
7 ° C (44.7°F) |
% 80 | 0% | 3 | Sunrise:07:23 AM Sunset: 04:57 PM |
Moonrise:12:15 PM Moonset: 12:52 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday |  Sunny |
3.9 ° C (39.1°F) |
10.2 ° C (50.3°F) |
6.3 ° C (43.3°F) |
% 75 | 0% | 3 | Sunrise:07:23 AM Sunset: 04:58 PM |
Moonrise:12:45 PM Moonset: 02:03 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday |  Overcast |
6.6 ° C (43.9°F) |
8.7 ° C (47.6°F) |
7.5 ° C (45.5°F) |
% 72 | 0% | 2 | Sunrise:07:23 AM Sunset: 04:58 PM |
Moonrise:01:22 PM Moonset: 03:18 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Sunny |
5.3 ° C (41.6°F) |
13.3 ° C (55.9°F) |
8.6 ° C (47.4°F) |
% 79 | 0% | 3 | Sunrise:07:24 AM Sunset: 04:59 PM |
Moonrise:02:07 PM Moonset: 04:36 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday | Overcast |
6.6 ° C (43.9°F) |
12.3 ° C (54.1°F) |
8.6 ° C (47.4°F) |
% 85 | 0% | 2 | Sunrise:07:24 AM Sunset: 05:00 PM |
Moonrise:03:05 PM Moonset: 05:52 AM Moon Phase ( Waxing Gibbous ) |
|
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