Annual mean 10°C · wettest around June · prevailing wind W
Warmest
19.6 °C
Coldest
7.8 °C
Wettest
62%
Windiest
6.4 m/s
Prevailing
W
5.0 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
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 Castro over the whole year is 10°C. February is the hottest month, with highs of about 18°C; September is the coldest, with lows of about 5°C. The rainy (wet) season in Castro runs from April to August, peaking in June with a 44% chance of rain on a given day. The dry season is September to March; January is the driest month, at 14%. Winds in Castro are highest in August, averaging 4.6 m/s (17 km/h), and lightest in May, at 3.2 m/s (12 km/h). The prevailing wind is from the W. The clearest skies in Castro come in January, when the sky is typically 59% covered; August is the cloudiest month, at 77%.
Month by month Castro 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
18°C
11°C
15°C
14%
59%
3.8 m/s
48
2
80
February
18°C
11°C
15°C
14%
61%
3.7 m/s
52
4
78
March
16°C
9°C
12°C
18%
64%
3.9 m/s
32
1
78
April
13°C
7°C
10°C
33%
69%
3.6 m/s
11
0
70
May
11°C
6°C
8°C
41%
69%
3.2 m/s
4
0
56
June
9°C
5°C
4°C
44%
74%
3.9 m/s
0
0
30
July
8°C
5°C
4°C
40%
75%
4.3 m/s
0
0
26
August
9°C
5°C
4°C
40%
77%
4.6 m/s
0
0
25
September
11°C
5°C
6°C
27%
73%
4.0 m/s
2
0
40
October
12°C
6°C
7°C
22%
65%
4.1 m/s
7
0
53
November
14°C
8°C
10°C
21%
69%
4.4 m/s
15
0
67
December
16°C
10°C
12°C
15%
68%
4.1 m/s
30
1
78
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 Castro weather by season
Year round, Castro has days of about 8°C at their warmest in July, its coolest month, and 18°C in February, its warmest; the coolest hours of the day run from 5°C to 11°C through the year, and the average temperature over the year is 10°C around the clock. Rain is most likely around June 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.
Castro weather in winterJune to August
High 9°CLow 5°CRain 41%
Winter in Castro has typical daily highs of about 9°C and lows of about 5°C, with a 41% chance of rain on a given day.
Castro weather in springSeptember to November
High 12°CLow 6°CRain 24%
Spring in Castro has typical daily highs of about 12°C and lows of about 6°C, with a 24% chance of rain on a given day.
Castro weather in summerDecember to February
High 17°CLow 10°CRain 14%
Summer in Castro has typical daily highs of about 17°C and lows of about 10°C, with a 14% chance of rain on a given day.
Castro weather in autumnMarch to May
High 13°CLow 8°CRain 30%
Autumn in Castro has typical daily highs of about 13°C and lows of about 8°C, with a 30% chance of rain on a given day.
When is the rainy season in Castro?
The rainy (wet) season in Castro runs from April to August, peaking in June with a 44% chance of rain on a given day. The dry season is September to March; January is the driest month, at 14%.
What time of year is Castro windiest?
Winds in Castro are highest in August, averaging 4.6 m/s (17 km/h), and lightest in May, at 3.2 m/s (12 km/h). The prevailing wind is from the W.
What is the average temperature in Castro year round?
The average temperature in Castro over the whole year is 10°C. February is the hottest month, with highs of about 18°C; September is the coldest, with lows of about 5°C.