Annual mean 12°C · wettest around May · prevailing wind SW
Warmest
26.6 °C
Coldest
-0.5 °C
Wettest
61%
Windiest
4.6 m/s
Prevailing
SW
3.7 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 South Union over the whole year is 12°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -3°C. South Union has no sharply defined rainy season: the chance of rain on a given day runs from 53% in September, the driest month, to 63% in May, the wettest. Winds in South Union are highest in March, averaging 3.6 m/s (13 km/h), and lightest in August, at 2.0 m/s (7 km/h). The prevailing wind is from the SW. The clearest skies in South Union come in September, when the sky is typically 43% covered; January is the cloudiest month, at 71%.
Month by month South Union 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
0°C
-3°C
-5°C
62%
71%
3.5 m/s
1
0
7
February
4°C
0°C
-1°C
58%
58%
3.5 m/s
2
0
17
March
9°C
3°C
4°C
61%
53%
3.6 m/s
11
0
36
April
14°C
7°C
10°C
62%
54%
3.3 m/s
30
2
53
May
19°C
12°C
17°C
63%
52%
2.7 m/s
58
14
60
June
24°C
17°C
24°C
61%
45%
2.4 m/s
65
36
42
July
26°C
19°C
27°C
61%
44%
2.1 m/s
49
61
16
August
26°C
18°C
26°C
60%
47%
2.0 m/s
57
52
25
September
22°C
15°C
22°C
53%
43%
2.1 m/s
68
31
51
October
17°C
9°C
14°C
54%
47%
2.4 m/s
43
8
64
November
9°C
4°C
5°C
54%
50%
3.0 m/s
12
0
36
December
5°C
2°C
0°C
59%
67%
3.1 m/s
1
0
20
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 South Union weather by season
Year round, South Union has days of about 0°C at their warmest in January, its coolest month, and 26°C in July, its warmest; the coolest hours of the day run from -3°C to 19°C through the year, and the average temperature over the year is 12°C around the clock. Rain is most likely around May and least likely around September. 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.
South Union weather in winterDecember to February
High 3°CLow -0°CRain 60%
Winter in South Union has typical daily highs of about 3°C and lows of about -0°C, with a 60% chance of rain on a given day.
South Union weather in springMarch to May
High 14°CLow 8°CRain 62%
Spring in South Union has typical daily highs of about 14°C and lows of about 8°C, with a 62% chance of rain on a given day.
South Union weather in summerJune to August
High 25°CLow 18°CRain 61%
Summer in South Union has typical daily highs of about 25°C and lows of about 18°C, with a 61% chance of rain on a given day.
South Union weather in autumnSeptember to November
High 16°CLow 9°CRain 54%
Autumn in South Union has typical daily highs of about 16°C and lows of about 9°C, with a 54% chance of rain on a given day.
When is the rainy season in South Union?
South Union has no sharply defined rainy season: the chance of rain on a given day runs from 53% in September, the driest month, to 63% in May, the wettest.
What time of year is South Union windiest?
Winds in South Union are highest in March, averaging 3.6 m/s (13 km/h), and lightest in August, at 2.0 m/s (7 km/h). The prevailing wind is from the SW.
What is the average temperature in South Union year round?
The average temperature in South Union over the whole year is 12°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -3°C.