Annual mean 18°C · wettest around May · prevailing wind SE
Warmest
23.2 °C
Coldest
21.4 °C
Wettest
11%
Windiest
3.9 m/s
Prevailing
SE
3.2 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
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 18°C. January is the hottest month, with highs of about 23°C; January is the coldest, with lows of about 14°C. La Mesa has no sharply defined rainy season: the chance of rain on a given day runs from 5% in January, the driest month, to 14% in May, the wettest. Winds in La Mesa are highest in July, averaging 2.5 m/s (9 km/h), and lightest in November, at 1.9 m/s (7 km/h). The prevailing wind is from the SE. The clearest skies in La Mesa come in January, when the sky is typically 62% covered; April is the cloudiest month, at 76%.
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
23°C
14°C
22°C
5%
62%
2.2 m/s
58
28
57
February
23°C
15°C
22°C
6%
69%
2.1 m/s
61
27
57
March
22°C
15°C
22°C
9%
75%
2.1 m/s
59
25
57
April
22°C
15°C
22°C
12%
76%
2.0 m/s
58
26
56
May
22°C
16°C
22°C
14%
75%
2.0 m/s
56
27
54
June
22°C
15°C
21°C
12%
75%
2.1 m/s
51
28
56
July
22°C
15°C
21°C
9%
72%
2.5 m/s
44
30
55
August
22°C
15°C
21°C
6%
70%
2.4 m/s
45
29
56
September
23°C
14°C
22°C
8%
68%
2.4 m/s
48
27
56
October
22°C
15°C
22°C
11%
72%
2.1 m/s
59
26
56
November
22°C
15°C
22°C
11%
74%
1.9 m/s
61
25
56
December
23°C
14°C
22°C
6%
66%
2.0 m/s
61
27
57
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 22°C at their warmest in June, its coolest month, and 23°C in January, its warmest; the coolest hours of the day run from 14°C to 16°C through the year, and the average temperature over the year is 18°C around the clock. Rain is most likely around May and least likely around January. 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 23°CLow 14°CRain 5%
Winter in La Mesa has typical daily highs of about 23°C and lows of about 14°C, with a 5% chance of rain on a given day.
La Mesa weather in springMarch to May
High 22°CLow 15°CRain 12%
Spring in La Mesa has typical daily highs of about 22°C and lows of about 15°C, with a 12% chance of rain on a given day.
La Mesa weather in summerJune to August
High 22°CLow 15°CRain 9%
Summer in La Mesa has typical daily highs of about 22°C and lows of about 15°C, with a 9% chance of rain on a given day.
La Mesa weather in autumnSeptember to November
High 22°CLow 15°CRain 10%
Autumn in La Mesa has typical daily highs of about 22°C and lows of about 15°C, with a 10% chance of rain on a given day.
When is the rainy season in La Mesa?
La Mesa has no sharply defined rainy season: the chance of rain on a given day runs from 5% in January, the driest month, to 14% in May, the wettest.
What time of year is La Mesa windiest?
Winds in La Mesa are highest in July, averaging 2.5 m/s (9 km/h), and lightest in November, at 1.9 m/s (7 km/h). The prevailing wind is from the SE.
What is the average temperature in La Mesa year round?
The average temperature in La Mesa over the whole year is 18°C. January is the hottest month, with highs of about 23°C; January is the coldest, with lows of about 14°C.