Annual mean 17°C · wettest around January · prevailing wind W
Warmest
28.6 °C
Coldest
17.2 °C
Wettest
34%
Windiest
4.2 m/s
Prevailing
W
3.8 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 La Mesa over the whole year is 17°C. August is the hottest month, with highs of about 28°C; January is the coldest, with lows of about 8°C. The rainy (wet) season in La Mesa runs from November to May, peaking in January with a 33% chance of rain on a given day. The dry season is June to August; July is the driest month, at 3%. Winds in La Mesa are highest in May, averaging 2.6 m/s (9 km/h), and lightest in November, at 1.9 m/s (7 km/h). The prevailing wind is from the W. The clearest skies in La Mesa come in November, when the sky is typically 27% covered; May is the cloudiest month, at 60%.
Month by month La Mesa 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
18°C
8°C
15°C
33%
36%
2.1 m/s
51
1
86
February
18°C
9°C
15°C
31%
38%
2.4 m/s
51
4
82
March
18°C
9°C
15°C
33%
48%
2.4 m/s
54
3
86
April
20°C
12°C
17°C
21%
45%
2.4 m/s
73
8
83
May
20°C
14°C
18°C
24%
60%
2.6 m/s
82
9
83
June
24°C
16°C
22°C
9%
48%
2.5 m/s
83
30
60
July
27°C
18°C
26°C
3%
35%
2.3 m/s
64
57
30
August
28°C
19°C
27°C
13%
32%
2.2 m/s
56
65
20
September
27°C
18°C
26°C
22%
37%
2.2 m/s
67
52
33
October
25°C
14°C
23°C
16%
32%
2.0 m/s
81
32
56
November
22°C
11°C
19°C
28%
27%
1.9 m/s
80
11
78
December
19°C
9°C
15°C
29%
33%
1.9 m/s
61
1
87
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 La Mesa weather by season
Year round, La Mesa has days of about 18°C at their warmest in January, its coolest month, and 28°C in August, its warmest; the coolest hours of the day run from 8°C to 19°C through the year, and the average temperature over the year is 17°C around the clock. Rain is most likely around January and least likely around July. 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.
La Mesa weather in winterDecember to February
High 18°CLow 8°CRain 31%
Winter in La Mesa has typical daily highs of about 18°C and lows of about 8°C, with a 31% chance of rain on a given day.
La Mesa weather in springMarch to May
High 20°CLow 12°CRain 26%
Spring in La Mesa has typical daily highs of about 20°C and lows of about 12°C, with a 26% chance of rain on a given day.
La Mesa weather in summerJune to August
High 26°CLow 18°CRain 8%
Summer in La Mesa has typical daily highs of about 26°C and lows of about 18°C, with a 8% chance of rain on a given day.
La Mesa weather in autumnSeptember to November
High 25°CLow 14°CRain 22%
Autumn in La Mesa has typical daily highs of about 25°C and lows of about 14°C, with a 22% chance of rain on a given day.
When is the rainy season in La Mesa?
The rainy (wet) season in La Mesa runs from November to May, peaking in January with a 33% chance of rain on a given day. The dry season is June to August; July is the driest month, at 3%.
What time of year is La Mesa windiest?
Winds in La Mesa are highest in May, averaging 2.6 m/s (9 km/h), and lightest in November, at 1.9 m/s (7 km/h). The prevailing wind is from the W.
What is the average temperature in La Mesa year round?
The average temperature in La Mesa over the whole year is 17°C. August is the hottest month, with highs of about 28°C; January is the coldest, with lows of about 8°C.