Annual mean 19°C · wettest around September · prevailing wind E
Warmest
26.3 °C
Coldest
22.4 °C
Wettest
100%
Windiest
5.1 m/s
Prevailing
E
4.1 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 San Francisco la Unión over the whole year is 19°C. April is the hottest month, with highs of about 26°C; January is the coldest, with lows of about 10°C. The rainy (wet) season in San Francisco la Unión runs from April to October, peaking in September with a 81% chance of rain on a given day. The dry season is November to March; December is the driest month, at 19%. Winds in San Francisco la Unión are highest in February, averaging 2.7 m/s (10 km/h), and lightest in May, at 1.7 m/s (6 km/h). The prevailing wind is from the E. The clearest skies in San Francisco la Unión come in February, when the sky is typically 46% covered; June is the cloudiest month, at 81%.
Month by month San Francisco la Unión 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
10°C
21°C
44%
54%
2.2 m/s
55
13
61
February
24°C
10°C
21°C
40%
46%
2.7 m/s
51
13
59
March
26°C
12°C
24°C
40%
51%
2.3 m/s
60
15
53
April
26°C
13°C
25°C
50%
61%
1.9 m/s
63
15
49
May
25°C
15°C
25°C
61%
75%
1.7 m/s
63
16
48
June
24°C
15°C
23°C
76%
81%
1.7 m/s
62
15
52
July
23°C
13°C
22°C
76%
74%
2.3 m/s
62
5
64
August
24°C
14°C
23°C
75%
77%
1.9 m/s
65
9
57
September
24°C
14°C
22°C
81%
78%
1.7 m/s
65
9
61
October
23°C
14°C
22°C
76%
78%
1.9 m/s
62
8
60
November
23°C
12°C
22°C
47%
64%
2.3 m/s
58
8
62
December
23°C
11°C
21°C
19%
55%
2.3 m/s
53
11
60
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 Francisco la Unión weather by season
Year round, San Francisco la Unión has days of about 23°C at their warmest in July, its coolest month, and 26°C in April, its warmest; the coolest hours of the day run from 10°C to 15°C through the year, and the average temperature over the year is 19°C around the clock. Rain is most likely around September 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 Francisco la Unión weather in winterDecember to February
High 23°CLow 10°CRain 34%
Winter in San Francisco la Unión has typical daily highs of about 23°C and lows of about 10°C, with a 34% chance of rain on a given day.
San Francisco la Unión weather in springMarch to May
High 26°CLow 13°CRain 50%
Spring in San Francisco la Unión has typical daily highs of about 26°C and lows of about 13°C, with a 50% chance of rain on a given day.
San Francisco la Unión weather in summerJune to August
High 24°CLow 14°CRain 76%
Summer in San Francisco la Unión has typical daily highs of about 24°C and lows of about 14°C, with a 76% chance of rain on a given day.
San Francisco la Unión weather in autumnSeptember to November
High 23°CLow 13°CRain 68%
Autumn in San Francisco la Unión has typical daily highs of about 23°C and lows of about 13°C, with a 68% chance of rain on a given day.
When is the rainy season in San Francisco la Unión?
The rainy (wet) season in San Francisco la Unión runs from April to October, peaking in September with a 81% chance of rain on a given day. The dry season is November to March; December is the driest month, at 19%.
What time of year is San Francisco la Unión windiest?
Winds in San Francisco la Unión are highest in February, averaging 2.7 m/s (10 km/h), and lightest in May, at 1.7 m/s (6 km/h). The prevailing wind is from the E.
What is the average temperature in San Francisco la Unión year round?
The average temperature in San Francisco la Unión over the whole year is 19°C. April is the hottest month, with highs of about 26°C; January is the coldest, with lows of about 10°C.