Annual mean 23°C · wettest around February · prevailing wind E
Warmest
30.0 °C
Coldest
24.1 °C
Wettest
82%
Windiest
4.8 m/s
Prevailing
E
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
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 das Ostras over the whole year is 23°C. January is the hottest month, with highs of about 30°C; July is the coldest, with lows of about 17°C. The rainy (wet) season in Rio das Ostras runs from November to May, peaking in February with a 73% chance of rain on a given day. The dry season is June to October; July is the driest month, at 42%. Winds in Rio das Ostras are highest in September, averaging 4.0 m/s (14 km/h), and lightest in April, at 2.4 m/s (9 km/h). The prevailing wind is from the E. The clearest skies in Rio das Ostras come in March, when the sky is typically 50% covered; October is the cloudiest month, at 76%.
Month by month Rio das Ostras 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
30°C
23°C
32°C
72%
59%
3.2 m/s
16
54
2
February
30°C
23°C
32°C
73%
59%
2.9 m/s
15
51
3
March
30°C
23°C
32°C
69%
50%
2.7 m/s
15
54
3
April
27°C
21°C
29°C
58%
58%
2.4 m/s
32
64
9
May
26°C
19°C
27°C
61%
55%
2.4 m/s
54
58
20
June
25°C
18°C
26°C
46%
55%
2.5 m/s
63
54
27
July
25°C
17°C
24°C
42%
52%
2.7 m/s
70
44
38
August
25°C
18°C
24°C
51%
59%
3.4 m/s
70
41
39
September
26°C
20°C
26°C
47%
63%
4.0 m/s
58
50
27
October
26°C
21°C
27°C
57%
76%
3.5 m/s
54
50
22
November
26°C
21°C
27°C
59%
70%
3.3 m/s
51
53
19
December
28°C
23°C
30°C
67%
68%
3.1 m/s
28
57
7
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 das Ostras weather by season
Year round, Rio das Ostras has days of about 25°C at their warmest in July, its coolest month, and 30°C in January, its warmest; the coolest hours of the day run from 17°C to 23°C through the year, and the average temperature over the year is 23°C around the clock. Rain is most likely around February and least likely around July. 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 das Ostras weather in winterJune to August
High 25°CLow 18°CRain 46%
Winter in Rio das Ostras has typical daily highs of about 25°C and lows of about 18°C, with a 46% chance of rain on a given day.
Rio das Ostras weather in springSeptember to November
High 26°CLow 21°CRain 55%
Spring in Rio das Ostras has typical daily highs of about 26°C and lows of about 21°C, with a 55% chance of rain on a given day.
Rio das Ostras weather in summerDecember to February
High 29°CLow 23°CRain 71%
Summer in Rio das Ostras has typical daily highs of about 29°C and lows of about 23°C, with a 71% chance of rain on a given day.
Rio das Ostras weather in autumnMarch to May
High 28°CLow 21°CRain 62%
Autumn in Rio das Ostras has typical daily highs of about 28°C and lows of about 21°C, with a 62% chance of rain on a given day.
When is the rainy season in Rio das Ostras?
The rainy (wet) season in Rio das Ostras runs from November to May, peaking in February with a 73% chance of rain on a given day. The dry season is June to October; July is the driest month, at 42%.
What time of year is Rio das Ostras windiest?
Winds in Rio das Ostras are highest in September, averaging 4.0 m/s (14 km/h), and lightest in April, at 2.4 m/s (9 km/h). The prevailing wind is from the E.
What is the average temperature in Rio das Ostras year round?
The average temperature in Rio das Ostras over the whole year is 23°C. January is the hottest month, with highs of about 30°C; July is the coldest, with lows of about 17°C.