Annual mean 16°C · wettest around June · prevailing wind W
Warmest
27.0 °C
Coldest
15.8 °C
Wettest
68%
Windiest
5.5 m/s
Prevailing
W
4.2 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 Saint Helena Bay over the whole year is 16°C. February is the hottest month, with highs of about 27°C; July is the coldest, with lows of about 8°C. Saint Helena Bay has no sharply defined rainy season: the chance of rain on a given day runs from 26% in February, the driest month, to 49% in June, the wettest. Winds in Saint Helena Bay are highest in January, averaging 3.9 m/s (14 km/h), and lightest in May, at 2.4 m/s (9 km/h). The prevailing wind is from the W. The clearest skies in Saint Helena Bay come in February, when the sky is typically 45% covered; July is the cloudiest month, at 59%.
Month by month Saint Helena Bay 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
26°C
18°C
24°C
28%
46%
3.9 m/s
61
36
41
February
27°C
17°C
24°C
26%
45%
3.6 m/s
60
41
38
March
25°C
16°C
22°C
33%
52%
3.2 m/s
69
29
50
April
23°C
13°C
20°C
31%
55%
2.8 m/s
67
22
59
May
20°C
10°C
18°C
29%
55%
2.4 m/s
69
12
71
June
17°C
9°C
15°C
49%
57%
2.7 m/s
46
2
77
July
16°C
8°C
14°C
44%
59%
2.6 m/s
41
1
77
August
17°C
8°C
14°C
38%
57%
2.7 m/s
40
2
77
September
19°C
10°C
16°C
37%
56%
3.0 m/s
49
7
74
October
22°C
13°C
19°C
33%
54%
3.4 m/s
62
16
65
November
23°C
14°C
20°C
29%
50%
3.8 m/s
67
18
62
December
25°C
16°C
22°C
43%
46%
3.8 m/s
70
25
54
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 Saint Helena Bay weather by season
Year round, Saint Helena Bay has days of about 16°C at their warmest in July, its coolest month, and 27°C in February, its warmest; the coolest hours of the day run from 8°C to 18°C through the year, and the average temperature over the year is 16°C around the clock. Rain is most likely around June and least likely around February. 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.
Saint Helena Bay weather in winterJune to August
High 17°CLow 8°CRain 44%
Winter in Saint Helena Bay has typical daily highs of about 17°C and lows of about 8°C, with a 44% chance of rain on a given day.
Saint Helena Bay weather in springSeptember to November
High 21°CLow 12°CRain 33%
Spring in Saint Helena Bay has typical daily highs of about 21°C and lows of about 12°C, with a 33% chance of rain on a given day.
Saint Helena Bay weather in summerDecember to February
High 26°CLow 17°CRain 32%
Summer in Saint Helena Bay has typical daily highs of about 26°C and lows of about 17°C, with a 32% chance of rain on a given day.
Saint Helena Bay weather in autumnMarch to May
High 23°CLow 13°CRain 31%
Autumn in Saint Helena Bay has typical daily highs of about 23°C and lows of about 13°C, with a 31% chance of rain on a given day.
When is the rainy season in Saint Helena Bay?
Saint Helena Bay has no sharply defined rainy season: the chance of rain on a given day runs from 26% in February, the driest month, to 49% in June, the wettest.
What time of year is Saint Helena Bay windiest?
Winds in Saint Helena Bay are highest in January, averaging 3.9 m/s (14 km/h), and lightest in May, at 2.4 m/s (9 km/h). The prevailing wind is from the W.
What is the average temperature in Saint Helena Bay year round?
The average temperature in Saint Helena Bay over the whole year is 16°C. February is the hottest month, with highs of about 27°C; July is the coldest, with lows of about 8°C.