Annual mean 19°C · wettest around May · prevailing wind S
Warmest
34.8 °C
Coldest
11.4 °C
Wettest
84%
Windiest
5.6 m/s
Prevailing
S
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 Stephenville over the whole year is 19°C. August is the hottest month, with highs of about 34°C; January is the coldest, with lows of about 4°C. Stephenville has no sharply defined rainy season: the chance of rain on a given day runs from 53% in November, the driest month, to 60% in May, the wettest. Winds in Stephenville are highest in April, averaging 4.1 m/s (15 km/h), and lightest in September, at 2.6 m/s (9 km/h). The prevailing wind is from the S. The clearest skies in Stephenville come in July, when the sky is typically 18% covered; April is the cloudiest month, at 38%.
Month by month Stephenville 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
4°C
7°C
53%
33%
3.5 m/s
15
0
49
February
14°C
6°C
10°C
53%
37%
3.8 m/s
31
3
52
March
20°C
11°C
16°C
55%
34%
4.0 m/s
53
8
65
April
23°C
14°C
20°C
55%
38%
4.1 m/s
64
22
54
May
27°C
19°C
26°C
60%
37%
3.7 m/s
48
49
23
June
32°C
23°C
32°C
54%
24%
3.4 m/s
11
48
2
July
34°C
24°C
35°C
53%
18%
3.2 m/s
2
30
0
August
34°C
24°C
35°C
53%
19%
2.9 m/s
5
30
1
September
30°C
20°C
31°C
57%
25%
2.6 m/s
22
51
8
October
25°C
15°C
23°C
58%
25%
3.1 m/s
50
44
33
November
18°C
9°C
15°C
53%
33%
3.1 m/s
50
7
65
December
14°C
6°C
10°C
54%
34%
3.2 m/s
28
2
57
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 Stephenville weather by season
Year round, Stephenville has days of about 12°C at their warmest in January, its coolest month, and 34°C in August, its warmest; the coolest hours of the day run from 4°C to 24°C through the year, and the average temperature over the year is 19°C around the clock. Rain is most likely around May and least likely around November. 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.
Stephenville weather in winterDecember to February
High 13°CLow 5°CRain 53%
Winter in Stephenville has typical daily highs of about 13°C and lows of about 5°C, with a 53% chance of rain on a given day.
Stephenville weather in springMarch to May
High 23°CLow 14°CRain 57%
Spring in Stephenville has typical daily highs of about 23°C and lows of about 14°C, with a 57% chance of rain on a given day.
Stephenville weather in summerJune to August
High 33°CLow 24°CRain 53%
Summer in Stephenville has typical daily highs of about 33°C and lows of about 24°C, with a 53% chance of rain on a given day.
Stephenville weather in autumnSeptember to November
High 24°CLow 15°CRain 56%
Autumn in Stephenville has typical daily highs of about 24°C and lows of about 15°C, with a 56% chance of rain on a given day.
When is the rainy season in Stephenville?
Stephenville has no sharply defined rainy season: the chance of rain on a given day runs from 53% in November, the driest month, to 60% in May, the wettest.
What time of year is Stephenville windiest?
Winds in Stephenville are highest in April, averaging 4.1 m/s (15 km/h), and lightest in September, at 2.6 m/s (9 km/h). The prevailing wind is from the S.
What is the average temperature in Stephenville year round?
The average temperature in Stephenville over the whole year is 19°C. August is the hottest month, with highs of about 34°C; January is the coldest, with lows of about 4°C.