Annual mean 28°C · wettest around September · prevailing wind S
Warmest
34.0 °C
Coldest
29.1 °C
Wettest
85%
Windiest
4.9 m/s
Prevailing
S
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
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 Isidro over the whole year is 28°C. May is the hottest month, with highs of about 34°C; February is the coldest, with lows of about 25°C. The rainy (wet) season in San Isidro runs from April to December, peaking in September with a 62% chance of rain on a given day. The dry season is January to March; March is the driest month, at 24%. Winds in San Isidro are highest in August, averaging 3.1 m/s (11 km/h), and lightest in October, at 2.3 m/s (8 km/h). The prevailing wind is from the S. The clearest skies in San Isidro come in April, when the sky is typically 45% covered; July is the cloudiest month, at 75%.
Month by month San Isidro 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
29°C
25°C
31°C
35%
63%
2.6 m/s
8
63
1
February
30°C
25°C
32°C
32%
53%
2.9 m/s
7
64
1
March
31°C
26°C
34°C
24%
48%
3.0 m/s
2
45
0
April
33°C
27°C
36°C
50%
45%
3.0 m/s
0
19
0
May
34°C
28°C
37°C
48%
57%
2.8 m/s
0
6
0
June
32°C
27°C
36°C
58%
67%
2.5 m/s
0
10
0
July
31°C
27°C
35°C
60%
75%
2.7 m/s
1
21
0
August
31°C
27°C
34°C
60%
73%
3.1 m/s
1
29
0
September
31°C
26°C
35°C
62%
73%
2.6 m/s
1
23
0
October
31°C
26°C
35°C
50%
69%
2.3 m/s
1
23
0
November
31°C
26°C
34°C
47%
62%
2.4 m/s
1
32
0
December
30°C
26°C
33°C
44%
67%
2.3 m/s
4
43
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 Isidro weather by season
Year round, San Isidro has days of about 29°C at their warmest in January, its coolest month, and 34°C in May, its warmest; the coolest hours of the day run from 25°C to 28°C through the year, and the average temperature over the year is 28°C around the clock. Rain is most likely around September and least likely around March. 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 Isidro weather in winterDecember to February
High 30°CLow 25°CRain 37%
Winter in San Isidro has typical daily highs of about 30°C and lows of about 25°C, with a 37% chance of rain on a given day.
San Isidro weather in springMarch to May
High 33°CLow 27°CRain 41%
Spring in San Isidro has typical daily highs of about 33°C and lows of about 27°C, with a 41% chance of rain on a given day.
San Isidro weather in summerJune to August
High 31°CLow 27°CRain 59%
Summer in San Isidro has typical daily highs of about 31°C and lows of about 27°C, with a 59% chance of rain on a given day.
San Isidro weather in autumnSeptember to November
High 31°CLow 26°CRain 53%
Autumn in San Isidro has typical daily highs of about 31°C and lows of about 26°C, with a 53% chance of rain on a given day.
When is the rainy season in San Isidro?
The rainy (wet) season in San Isidro runs from April to December, peaking in September with a 62% chance of rain on a given day. The dry season is January to March; March is the driest month, at 24%.
What time of year is San Isidro windiest?
Winds in San Isidro are highest in August, averaging 3.1 m/s (11 km/h), and lightest in October, at 2.3 m/s (8 km/h). The prevailing wind is from the S.
What is the average temperature in San Isidro year round?
The average temperature in San Isidro over the whole year is 28°C. May is the hottest month, with highs of about 34°C; February is the coldest, with lows of about 25°C.