+32.7157° · -117.1647° · ELEV 0m

San Diego

United States · California

Monthly weather averages for San Diego, United States — temperature highs and lows, rainfall, sunshine hours by month, and the best time to visit.

№ 01

Climate Overview

August → January

San Diego has a Mediterranean climate. The warmest month is August (26°C average high) and the coolest is January (18°C).

№ 02

Rainfall by Month

319 mm / year

San Diego sees 319 mm of rain a year. The wettest month is January (64 mm); the driest is June (2 mm).

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№ 03

Best Time to Visit

June–November
June–November
12°C – 26°C · 11.1h sun

The best time to visit San Diego is June–November, when temperatures average 12°C–26°C with 11.1 sunshine hours per day.

Some visitors prefer December–May for cooler, drier conditions.

№ 04

Monthly Breakdown

12 months · °C · mm · hours
Monthly climate normals for San Diego, United States — click a column to sort
January18.0°C8.8°C64 mm8.6 h06:5017:04
February18.3°C9.0°C45 mm9.5 h06:3117:33
March18.5°C10.7°C48 mm10.4 h06:5818:56
April20.1°C12.6°C22 mm11.1 h06:1819:18
May20.2°C14.1°C16 mm11.2 h05:4919:40
June22.4°C15.8°C2 mm12.1 h05:4019:58
July24.6°C18.3°C5 mm12.5 h05:5119:57
August25.7°C19.0°C8 mm11.8 h06:1219:34
September25.7°C18.4°C11 mm10.8 h06:3218:55
October24.4°C15.7°C9 mm10.0 h06:5218:16
November21.5°C11.7°C29 mm9.5 h06:1816:47
December18.0°C9.1°C60 mm8.2 h06:4316:44

Nearby cities

View monthly climate averages for nearby cities or compare them with San Diego.

Temperature, rainfall and sunshine, month by month.