Annual mean 16°C · wettest around December · prevailing wind W
Warmest
28.5 °C
Coldest
11.5 °C
Wettest
18%
Windiest
4.8 m/s
Prevailing
W
3.9 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 Vista over the whole year is 16°C. July is the hottest month, with highs of about 28°C; December is the coldest, with lows of about 6°C. The rainy (wet) season in Rio Vista runs from November to April, peaking in December with a 19% chance of rain on a given day. The dry season is May to October; July is the driest month, at 3%. Winds in Rio Vista are highest in July, averaging 4.6 m/s (17 km/h), and lightest in November, at 2.1 m/s (8 km/h). The prevailing wind is from the W. The clearest skies in Rio Vista come in July, when the sky is typically 5% covered; January is the cloudiest month, at 41%.
Month by month Rio Vista 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
12°C
7°C
10°C
18%
41%
2.5 m/s
10
0
77
February
14°C
7°C
11°C
17%
25%
2.9 m/s
25
0
78
March
16°C
8°C
13°C
18%
34%
3.2 m/s
35
1
84
April
20°C
10°C
17°C
11%
20%
3.6 m/s
67
9
82
May
23°C
13°C
20°C
9%
15%
4.3 m/s
75
24
66
June
27°C
16°C
25°C
4%
6%
4.5 m/s
66
49
39
July
28°C
16°C
27°C
3%
5%
4.6 m/s
54
62
25
August
28°C
16°C
27°C
4%
7%
4.2 m/s
55
63
24
September
27°C
15°C
25°C
4%
9%
3.4 m/s
68
52
37
October
23°C
12°C
21°C
9%
11%
2.7 m/s
81
24
67
November
16°C
8°C
14°C
13%
25%
2.1 m/s
45
1
90
December
12°C
6°C
10°C
19%
38%
2.3 m/s
9
0
76
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 Vista weather by season
Year round, Rio Vista has days of about 12°C at their warmest in December, its coolest month, and 28°C in July, its warmest; the coolest hours of the day run from 6°C to 16°C through the year, and the average temperature over the year is 16°C around the clock. Rain is most likely around December 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 Vista weather in winterDecember to February
High 13°CLow 7°CRain 18%
Winter in Rio Vista has typical daily highs of about 13°C and lows of about 7°C, with a 18% chance of rain on a given day.
Rio Vista weather in springMarch to May
High 19°CLow 11°CRain 13%
Spring in Rio Vista has typical daily highs of about 19°C and lows of about 11°C, with a 13% chance of rain on a given day.
Rio Vista weather in summerJune to August
High 28°CLow 16°CRain 4%
Summer in Rio Vista has typical daily highs of about 28°C and lows of about 16°C, with a 4% chance of rain on a given day.
Rio Vista weather in autumnSeptember to November
High 22°CLow 12°CRain 9%
Autumn in Rio Vista has typical daily highs of about 22°C and lows of about 12°C, with a 9% chance of rain on a given day.
When is the rainy season in Rio Vista?
The rainy (wet) season in Rio Vista runs from November to April, peaking in December with a 19% chance of rain on a given day. The dry season is May to October; July is the driest month, at 3%.
What time of year is Rio Vista windiest?
Winds in Rio Vista are highest in July, averaging 4.6 m/s (17 km/h), and lightest in November, at 2.1 m/s (8 km/h). The prevailing wind is from the W.
What is the average temperature in Rio Vista year round?
The average temperature in Rio Vista over the whole year is 16°C. July is the hottest month, with highs of about 28°C; December is the coldest, with lows of about 6°C.