Live Weather & Forecast
Weather in San Ramon
California, United States · Real-time conditions & 3-day outlook
12°C
Feels like 9°C
53°F / Feels 48°F
Partly cloudy
San Ramon, California
🌞 Daytime
Updated: 2026-04-12 08:45
Humidity
83%
Wind
25.6 km/h SSW
Wind Gust
37.9 km/h
Pressure
1011 mb
Visibility
16 km
UV Index
0.2
(Low)
Precipitation
1.64 mm
Cloud Cover
75%
Dew Point
7.6°C
Wind Degree
204°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
150.9 μg/m³
NO₂
3.3 μg/m³
O₃
91 μg/m³
SO₂
1.8 μg/m³
PM 2.5
5.1 μg/m³
PM 10
7 μg/m³
Today's Hourly Forecast
24-hour breakdown for San Ramon, California
12 AM
9°
Clear
1 AM
9°
Clear
2 AM
9°
Partly Cloudy
3 AM
9°
Patchy rain nearby
4 AM
9°
Light drizzle
5 AM
9°
Patchy light drizzle
6 AM
9°
Partly Cloudy
7 AM
9°
Partly Cloudy
8 AM
12°
Partly cloudy
9 AM
10°
Patchy light drizzle
10 AM
11°
Light rain
11 AM
10°
Patchy rain nearby
12 PM
11°
Moderate rain
1 PM
12°
Patchy rain nearby
2 PM
12°
Moderate rain at times
3 PM
12°
Cloudy
4 PM
12°
Cloudy
5 PM
12°
Light rain shower
6 PM
12°
Cloudy
7 PM
11°
Cloudy
8 PM
10°
Overcast
9 PM
10°
Partly Cloudy
10 PM
9°
Partly Cloudy
11 PM
9°
Patchy rain nearby
3-Day Forecast
Daily overview for San Ramon, California
Today
Moderate rain
13°
/
8°
🌧️ 86% chance of rain
💧 Avg. humidity: 84%
💨 Max wind: 25.6 km/h
🌧️ Total precip: 13.26 mm
☀️ UV Index: 1
🌅 Sunrise: 06:37 AM
🌇 Sunset: 07:41 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Mist
16°
/
9°
🌧️ 0% chance of rain
💧 Avg. humidity: 83%
💨 Max wind: 11.5 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.3
🌅 Sunrise: 06:35 AM
🌇 Sunset: 07:42 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Partly Cloudy
15°
/
8°
🌧️ 0% chance of rain
💧 Avg. humidity: 82%
💨 Max wind: 12.2 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:34 AM
🌇 Sunset: 07:43 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit San Ramon
Plan your trip to San Ramon, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in San Ramon?
Current conditions in San Ramon: Partly cloudy, temperature 12°C, humidity 83%.
What is the best time to visit San Ramon?
The best time to visit San Ramon is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in San Ramon?
San Ramon is located at approximately 37.8° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in San Ramon?
The wettest period in San Ramon is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to San Ramon?
For visits to San Ramon during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is San Ramon in?
San Ramon is located in United States, in the state of California.
What are the public holidays in San Ramon in 2026?
View the 2026 public holidays for San Ramon on our Holidays page.
What are the GPS coordinates used for the weather forecast in San Ramon?
The weather forecast for San Ramon uses coordinates 37.7648, -121.9544.