Simi Valley, CA Weather
Simi Valley, CA climate is warm during summer when temperatures tend to be in the 70's and cool during winter when temperatures tend to be in the 50's.
The warmest month of the year is August with an average maximum temperature of 96.00 degrees Fahrenheit, while the coldest month of the year is December with an average minimum temperature of 38.30 degrees Fahrenheit.
Temperature variations between night and day tend to be relatively big during summer with a difference that can reach 38 degrees Fahrenheit, and moderate during winter with an average difference of 29 degrees Fahrenheit.
The annual average precipitation at Simi Valley is 18.39 Inches. Winter months tend to be wetter than summer months. The wettest month of the year is February with an average rainfall of 4.66 Inches.
Weather Data
Current Conditions
|
Fair, 59°F | Humidity: 52% | Dewpoint: 42°F |
| Wind Speed: N 3.5 MPH (3 KT) | Heat Index: 59°F | ||
| Barometer: 29.97 in. | Wind Chill: 59°F |
Weather Forecast
 | Hi: 70°F | Today: Mostly sunny. Highs in the upper 60s to mid 70s. Local north to northeast winds 15 to 25 mph this morning. |
| Lo: 46°F | ||
| Hi: 76°F | Monday: Mostly sunny. Highs in the mid 70s to around 80. |
| Lo: 46°F | ||
 | Hi: 76°F | Tuesday: Partly cloudy. Highs in the mid 70s to around 80. |
| Lo: 46°F | ||
| Hi: 70°F | Wednesday: Partly cloudy. Lows in the mid 40s to lower 50s...Except around 40 in the ojai valley. Highs in the upper 60s to mid 70s. |
| Lo: 46°F | ||
| Hi: 70°F | Wednesday: Partly cloudy. Lows in the mid 40s to lower 50s...Except around 40 in the ojai valley. Highs in the upper 60s to mid 70s. |
| Lo: 46°F | ||
| Hi: 69°F | Thursday: Partly cloudy. Highs in the upper 60s. |
| Lo: 45°F | ||
| Hi: 69°F | Friday: Mostly clear. Highs in the upper 60s. Lows in the 40s...Except in the mid to upper 30s in the ojai valley. |
| Lo: 45°F |
Moon, Sunrise and Sunset
 |
Moon Phase: Waning Gibbous Moon | Civil Twilight: 5:54 AM PST |
Sunrise: 6:20 AM PST |
| Sunset: 4:56 PM PST |
Civil Twilight: 5:22 PM PST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 67.9 | 69.9 | 72.0 | 77.7 | 81.3 | 88.8 | 95.0 | 96.0 | 91.7 | 84.4 | 74.7 | 68.8 | 80.7 |
| Mean °F | 53.7 | 55.4 | 57.2 | 61.3 | 65.2 | 71.0 | 76.0 | 76.8 | 73.5 | 66.8 | 58.2 | 53.6 | 64.1 |
| Min °F | 39.5 | 40.9 | 42.3 | 44.8 | 49.1 | 53.2 | 56.9 | 57.6 | 55.2 | 49.2 | 41.7 | 38.3 | 47.4 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 4.07 | 4.66 | 3.56 | 0.87 | 0.34 | 0.03 | 0.02 | 0.14 | 0.26 | 0.55 | 1.43 | 2.46 | 18.39 |
