Annual mean 17°C · wettest around March · prevailing wind N
Warmest
26.1 °C
Coldest
13.0 °C
Wettest
60%
Windiest
5.3 m/s
Prevailing
N
4.4 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 Rio Maior over the whole year is 17°C. August is the hottest month, with highs of about 26°C; January is the coldest, with lows of about 9°C. The rainy (wet) season in Rio Maior runs from October to April, peaking in March with a 51% chance of rain on a given day. The dry season is May to September; August is the driest month, at 6%. Winds in Rio Maior are highest in July, averaging 4.1 m/s (15 km/h), and lightest in October, at 3.4 m/s (12 km/h). The prevailing wind is from the N. The clearest skies in Rio Maior come in August, when the sky is typically 39% covered; January is the cloudiest month, at 54%.
Month by month Rio Maior 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
14°C
9°C
10°C
44%
54%
3.7 m/s
13
0
70
February
15°C
10°C
12°C
43%
51%
3.6 m/s
23
0
76
March
16°C
11°C
12°C
51%
52%
4.0 m/s
32
0
76
April
18°C
13°C
15°C
42%
51%
3.7 m/s
51
3
75
May
21°C
15°C
18°C
26%
47%
3.7 m/s
67
14
70
June
23°C
17°C
21°C
24%
46%
3.9 m/s
73
22
61
July
26°C
19°C
24°C
9%
42%
4.1 m/s
70
38
46
August
26°C
19°C
24°C
6%
39%
3.9 m/s
70
45
40
September
25°C
18°C
23°C
15%
40%
3.7 m/s
75
36
47
October
22°C
16°C
20°C
32%
49%
3.4 m/s
79
17
63
November
17°C
13°C
14°C
49%
52%
3.5 m/s
47
0
80
December
15°C
11°C
12°C
49%
53%
3.6 m/s
23
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 Rio Maior weather by season
Year round, Rio Maior has days of about 14°C at their warmest in January, its coolest month, and 26°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.
Rio Maior weather in winterDecember to February
High 14°CLow 10°CRain 45%
Winter in Rio Maior has typical daily highs of about 14°C and lows of about 10°C, with a 45% chance of rain on a given day.
Rio Maior weather in springMarch to May
High 18°CLow 13°CRain 40%
Spring in Rio Maior has typical daily highs of about 18°C and lows of about 13°C, with a 40% chance of rain on a given day.
Rio Maior weather in summerJune to August
High 25°CLow 18°CRain 13%
Summer in Rio Maior has typical daily highs of about 25°C and lows of about 18°C, with a 13% chance of rain on a given day.
Rio Maior weather in autumnSeptember to November
High 21°CLow 15°CRain 32%
Autumn in Rio Maior 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 Rio Maior?
The rainy (wet) season in Rio Maior runs from October to April, peaking in March with a 51% 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 Rio Maior windiest?
Winds in Rio Maior are highest in July, averaging 4.1 m/s (15 km/h), and lightest in October, at 3.4 m/s (12 km/h). The prevailing wind is from the N.
What is the average temperature in Rio Maior year round?
The average temperature in Rio Maior over the whole year is 17°C. August is the hottest month, with highs of about 26°C; January is the coldest, with lows of about 9°C.