Weather in サンフランシスコ in 4月

Climate normals based on 10 years of historical data for サンフランシスコ, アメリカ.

Average high

16°C

Average low

10°C

Rainfall

34 mm

4 rainy days

Sunshine

6.3h/day

湿度

73%

Sea temperature

12.7°C

How Hot Is サンフランシスコ in 4月?

Daytime temperatures in サンフランシスコ climb to about 16°C in April, cooling to 10°C overnight as the city shakes off winter.

サンフランシスコ enjoys generous sunshine: 6.3h on a typical day, daylight 13h-long.

Predominantly dry month for サンフランシスコ: 34mm in 4 days.

High levels of humidity in サンフランシスコ year-round (about 73%) will make it feel warmer than the thermometer suggests.

The water stays cold off サンフランシスコ in April — averaging around 12.7°C, brisk for most swimmers.

Sea breeze or thermal winds keep サンフランシスコ moving at 23 kph in April.

Sun and cloud trade off in サンフランシスコ during April — about 46% cloud cover on average.