California Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
California year round climate
Spring (March–May): Average 12.9–21.0°C, warm and dry climate, sunny, suitable for outdoor activities. Common activities: Hiking, cycling, sightseeing. Recommended clothing: Comfortable trousers or skirts, short-sleeved or long-sleeved shirts, light jacket.
Summer (June–August): Average 25.4–28.7°C, hot and dry, strong sunlight, pay attention to sun protection. Common activities: Swimming, surfing, sunbathing. Recommended clothing: Light and breathable clothing, hat, sunglasses, sunscreen.
Autumn (September–November): Average 19.4–10.8°C, mild and comfortable climate, warm days, cool nights. Common activities: Outdoor walks, winery visits. Recommended clothing: Long-sleeved shirts, light jacket, comfortable shoes.
Winter (December–February): Average 8.9–9.8°C, mild and dry, little rain. Common activities: Sightseeing, indoor activities. Recommended clothing: Warm jacket, sweater, trousers.
California climatological average
Annual average temperature: approx. 17.9°C / Annual rainfall: approx. 8 mm / Summer humidity: 10%–20% / Rainiest month: August
California monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
8.9°C
0
February
9.8°C
0
March
12.9°C
0
April
16.5°C
0
May
21°C
0
June
25.4°C
0
July
28.7°C
1.8
August
27.6°C
6.2
September
24.5°C
0
October
19.4°C
0.1
November
10.8°C
0
December
8.9°C
0
California weather for the next seven days
11/29
Saturday
Sunny
14.2°C/4.1°C
11/30
Sunday
Cloudy
11°C/6.4°C
12/1
Monday
Sunny
11.4°C/3.4°C
12/2
Tuesday
Sunny
11.5°C/1.8°C
12/3
Wednesday
Sunny
9.9°C/1.5°C
12/4
Thursday
Sunny
11°C/1.2°C
12/5
Friday
Sunny
12.2°C/3°C
KKday App
Your Best Travel Buddy
Use the code APP5OFF to enjoy an exclusive in-app deal of 5% off (cap at USD$3) on your 1st orderScan here to download the app