Annual mean 24°C · wettest around October · prevailing wind NE
Warmest
29.5 °C
Coldest
25.6 °C
Wettest
79%
Windiest
4.9 m/s
Prevailing
NE
3.4 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 San Isidro over the whole year is 24°C. April is the hottest month, with highs of about 29°C; January is the coldest, with lows of about 19°C. The rainy (wet) season in San Isidro runs from April to October, peaking in October with a 63% chance of rain on a given day. The dry season is November to March; February is the driest month, at 11%. Winds in San Isidro are highest in January, averaging 3.7 m/s (13 km/h), and lightest in September, at 1.6 m/s (6 km/h). The prevailing wind is from the NE. The clearest skies in San Isidro come in March, when the sky is typically 46% covered; June is the cloudiest month, at 68%.
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
26°C
19°C
25°C
22%
51%
3.7 m/s
59
35
37
February
27°C
19°C
26°C
11%
48%
3.5 m/s
57
39
32
March
28°C
20°C
28°C
21%
46%
3.1 m/s
51
44
22
April
29°C
21°C
30°C
40%
51%
2.4 m/s
36
53
10
May
29°C
22°C
31°C
46%
61%
1.8 m/s
27
53
4
June
27°C
22°C
30°C
54%
68%
1.9 m/s
39
50
9
July
27°C
22°C
29°C
38%
64%
2.9 m/s
50
45
16
August
28°C
22°C
30°C
46%
64%
2.1 m/s
38
51
8
September
28°C
21°C
31°C
60%
64%
1.6 m/s
31
54
5
October
27°C
21°C
30°C
63%
65%
1.7 m/s
40
50
10
November
26°C
21°C
27°C
36%
64%
2.6 m/s
54
38
26
December
26°C
20°C
25°C
19%
56%
3.6 m/s
57
32
38
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 26°C at their warmest in December, its coolest month, and 29°C in April, its warmest; the coolest hours of the day run from 19°C to 22°C through the year, and the average temperature over the year is 24°C around the clock. Rain is most likely around October and least likely around February. 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 26°CLow 20°CRain 17%
Winter in San Isidro has typical daily highs of about 26°C and lows of about 20°C, with a 17% chance of rain on a given day.
San Isidro weather in springMarch to May
High 29°CLow 21°CRain 36%
Spring in San Isidro has typical daily highs of about 29°C and lows of about 21°C, with a 36% chance of rain on a given day.
San Isidro weather in summerJune to August
High 27°CLow 22°CRain 46%
Summer in San Isidro has typical daily highs of about 27°C and lows of about 22°C, with a 46% chance of rain on a given day.
San Isidro weather in autumnSeptember to November
High 27°CLow 21°CRain 53%
Autumn in San Isidro has typical daily highs of about 27°C and lows of about 21°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 October, peaking in October with a 63% chance of rain on a given day. The dry season is November to March; February is the driest month, at 11%.
What time of year is San Isidro windiest?
Winds in San Isidro are highest in January, averaging 3.7 m/s (13 km/h), and lightest in September, at 1.6 m/s (6 km/h). The prevailing wind is from the NE.
What is the average temperature in San Isidro year round?
The average temperature in San Isidro over the whole year is 24°C. April is the hottest month, with highs of about 29°C; January is the coldest, with lows of about 19°C.