Annual mean 29°C · wettest around October · prevailing wind E
Warmest
33.6 °C
Coldest
30.9 °C
Wettest
5%
Windiest
6.3 m/s
Prevailing
E
4.2 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in San Diego over the whole year is 29°C. July is the hottest month, with highs of about 33°C; January is the coldest, with lows of about 24°C. San Diego has no sharply defined rainy season: the chance of rain on a given day runs from 1% in December, the driest month, to 11% in October, the wettest. Winds in San Diego are highest in February, averaging 5.8 m/s (21 km/h), and lightest in October, at 2.3 m/s (8 km/h). The prevailing wind is from the E. The clearest skies in San Diego come in January, when the sky is typically 31% covered; October is the cloudiest month, at 58%.
Month by month San Diego climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
32°C
24°C
32°C
1%
31%
5.0 m/s
7
72
0
February
33°C
25°C
31°C
1%
32%
5.8 m/s
13
69
1
March
33°C
25°C
33°C
2%
44%
5.3 m/s
3
60
0
April
33°C
26°C
34°C
5%
53%
4.2 m/s
1
39
0
May
32°C
26°C
35°C
8%
57%
2.7 m/s
0
24
0
June
32°C
26°C
35°C
7%
56%
3.0 m/s
0
29
0
July
33°C
26°C
35°C
4%
52%
3.7 m/s
1
25
0
August
33°C
26°C
35°C
7%
55%
3.0 m/s
1
23
0
September
32°C
25°C
35°C
8%
57%
2.5 m/s
1
25
0
October
31°C
25°C
35°C
11%
58%
2.3 m/s
1
33
0
November
31°C
25°C
34°C
8%
51%
2.9 m/s
2
43
0
December
33°C
24°C
32°C
1%
34%
4.5 m/s
5
63
0
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short San Diego weather by season
Year round, San Diego has days of about 31°C at their warmest in October, its coolest month, and 33°C in July, its warmest; the coolest hours of the day run from 24°C to 26°C through the year, and the average temperature over the year is 29°C around the clock. Rain is most likely around October and least likely around December. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
San Diego weather in winterDecember to February
High 33°CLow 24°CRain 1%
Winter in San Diego has typical daily highs of about 33°C and lows of about 24°C, with a 1% chance of rain on a given day.
San Diego weather in springMarch to May
High 33°CLow 25°CRain 5%
Spring in San Diego has typical daily highs of about 33°C and lows of about 25°C, with a 5% chance of rain on a given day.
San Diego weather in summerJune to August
High 33°CLow 26°CRain 6%
Summer in San Diego has typical daily highs of about 33°C and lows of about 26°C, with a 6% chance of rain on a given day.
San Diego weather in autumnSeptember to November
High 32°CLow 25°CRain 9%
Autumn in San Diego has typical daily highs of about 32°C and lows of about 25°C, with a 9% chance of rain on a given day.
When is the rainy season in San Diego?
San Diego has no sharply defined rainy season: the chance of rain on a given day runs from 1% in December, the driest month, to 11% in October, the wettest.
What time of year is San Diego windiest?
Winds in San Diego are highest in February, averaging 5.8 m/s (21 km/h), and lightest in October, at 2.3 m/s (8 km/h). The prevailing wind is from the E.
What is the average temperature in San Diego year round?
The average temperature in San Diego over the whole year is 29°C. July is the hottest month, with highs of about 33°C; January is the coldest, with lows of about 24°C.