Annual mean 27°C · wettest around August · prevailing wind S
Warmest
32.2 °C
Coldest
28.0 °C
Wettest
74%
Windiest
2.9 m/s
Prevailing
S
2.6 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 Tomas over the whole year is 27°C. May is the hottest month, with highs of about 32°C; February is the coldest, with lows of about 22°C. The rainy (wet) season in San Tomas runs from May to October, peaking in August with a 71% chance of rain on a given day. The dry season is November to April; January is the driest month, at 37%. Winds in San Tomas are highest in April, averaging 2.5 m/s (9 km/h), and lightest in June, at 2.2 m/s (8 km/h). The prevailing wind is from the S. The clearest skies in San Tomas come in March, when the sky is typically 50% covered; August is the cloudiest month, at 81%.
Month by month San Tomas 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
28°C
23°C
31°C
37%
56%
2.3 m/s
15
52
8
February
29°C
22°C
31°C
40%
51%
2.4 m/s
14
51
7
March
30°C
24°C
33°C
43%
50%
2.4 m/s
11
32
5
April
32°C
25°C
35°C
50%
52%
2.5 m/s
9
17
2
May
32°C
25°C
36°C
59%
64%
2.3 m/s
9
10
2
June
30°C
25°C
35°C
66%
73%
2.2 m/s
9
13
3
July
29°C
25°C
34°C
69%
78%
2.3 m/s
9
17
4
August
29°C
25°C
33°C
71%
81%
2.3 m/s
9
18
4
September
29°C
25°C
34°C
70%
76%
2.3 m/s
10
17
4
October
30°C
24°C
34°C
65%
68%
2.4 m/s
10
18
4
November
30°C
24°C
34°C
53%
58%
2.2 m/s
10
25
4
December
29°C
24°C
32°C
41%
60%
2.3 m/s
13
38
6
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 Tomas weather by season
Year round, San Tomas has days of about 28°C at their warmest in January, its coolest month, and 32°C in May, its warmest; the coolest hours of the day run from 22°C to 25°C through the year, and the average temperature over the year is 27°C around the clock. Rain is most likely around August 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.
San Tomas weather in winterDecember to February
High 29°CLow 23°CRain 39%
Winter in San Tomas has typical daily highs of about 29°C and lows of about 23°C, with a 39% chance of rain on a given day.
San Tomas weather in springMarch to May
High 31°CLow 25°CRain 51%
Spring in San Tomas has typical daily highs of about 31°C and lows of about 25°C, with a 51% chance of rain on a given day.
San Tomas weather in summerJune to August
High 30°CLow 25°CRain 69%
Summer in San Tomas has typical daily highs of about 30°C and lows of about 25°C, with a 69% chance of rain on a given day.
San Tomas weather in autumnSeptember to November
High 29°CLow 24°CRain 63%
Autumn in San Tomas has typical daily highs of about 29°C and lows of about 24°C, with a 63% chance of rain on a given day.
When is the rainy season in San Tomas?
The rainy (wet) season in San Tomas runs from May to October, peaking in August with a 71% chance of rain on a given day. The dry season is November to April; January is the driest month, at 37%.
What time of year is San Tomas windiest?
Winds in San Tomas are highest in April, averaging 2.5 m/s (9 km/h), and lightest in June, at 2.2 m/s (8 km/h). The prevailing wind is from the S.
What is the average temperature in San Tomas year round?
The average temperature in San Tomas over the whole year is 27°C. May is the hottest month, with highs of about 32°C; February is the coldest, with lows of about 22°C.