Annual mean 17°C · wettest around March · prevailing wind N
Warmest
27.0 °C
Coldest
12.9 °C
Wettest
59%
Windiest
5.2 m/s
Prevailing
N
4.3 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 Santarém over the whole year is 17°C. August is the hottest month, with highs of about 27°C; January is the coldest, with lows of about 9°C. The rainy (wet) season in Santarém runs from October to April, peaking in March with a 52% chance of rain on a given day. The dry season is May to September; August is the driest month, at 6%. Winds in Santarém are highest in March, averaging 4.0 m/s (14 km/h), and lightest in October, at 3.3 m/s (12 km/h). The prevailing wind is from the N. The clearest skies in Santarém come in August, when the sky is typically 37% covered; January is the cloudiest month, at 54%.
Month by month Santarém 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
13°C
9°C
10°C
44%
54%
3.6 m/s
13
0
69
February
15°C
10°C
11°C
43%
50%
3.6 m/s
23
0
76
March
16°C
11°C
13°C
52%
51%
4.0 m/s
33
0
76
April
18°C
13°C
15°C
43%
51%
3.7 m/s
53
3
75
May
22°C
16°C
19°C
25%
46%
3.8 m/s
69
17
67
June
24°C
17°C
22°C
20%
45%
3.8 m/s
73
26
56
July
26°C
19°C
25°C
7%
40%
4.0 m/s
65
44
38
August
27°C
19°C
25°C
6%
37%
3.8 m/s
64
51
32
September
25°C
18°C
24°C
15%
38%
3.6 m/s
73
41
43
October
22°C
16°C
20°C
32%
48%
3.3 m/s
79
19
62
November
17°C
12°C
14°C
48%
52%
3.4 m/s
46
0
80
December
14°C
10°C
12°C
47%
52%
3.5 m/s
22
0
77
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 Santarém weather by season
Year round, Santarém has days of about 13°C at their warmest in January, its coolest month, and 27°C in August, its warmest; the coolest hours of the day run from 9°C to 19°C through the year, and the average temperature over the year is 17°C around the clock. Rain is most likely around March and least likely around August. 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.
Santarém weather in winterDecember to February
High 14°CLow 10°CRain 44%
Winter in Santarém has typical daily highs of about 14°C and lows of about 10°C, with a 44% chance of rain on a given day.
Santarém weather in springMarch to May
High 19°CLow 13°CRain 40%
Spring in Santarém has typical daily highs of about 19°C and lows of about 13°C, with a 40% chance of rain on a given day.
Santarém weather in summerJune to August
High 26°CLow 18°CRain 11%
Summer in Santarém has typical daily highs of about 26°C and lows of about 18°C, with a 11% chance of rain on a given day.
Santarém weather in autumnSeptember to November
High 21°CLow 15°CRain 32%
Autumn in Santarém has typical daily highs of about 21°C and lows of about 15°C, with a 32% chance of rain on a given day.
When is the rainy season in Santarém?
The rainy (wet) season in Santarém runs from October to April, peaking in March with a 52% chance of rain on a given day. The dry season is May to September; August is the driest month, at 6%.
What time of year is Santarém windiest?
Winds in Santarém are highest in March, averaging 4.0 m/s (14 km/h), and lightest in October, at 3.3 m/s (12 km/h). The prevailing wind is from the N.
What is the average temperature in Santarém year round?
The average temperature in Santarém over the whole year is 17°C. August is the hottest month, with highs of about 27°C; January is the coldest, with lows of about 9°C.