Annual mean 13°C · wettest around May · prevailing wind W
Warmest
29.0 °C
Coldest
1.8 °C
Wettest
41%
Windiest
4.7 m/s
Prevailing
W
3.5 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 Antrim over the whole year is 13°C. July is the hottest month, with highs of about 28°C; January is the coldest, with lows of about -2°C. Antrim has no sharply defined rainy season: the chance of rain on a given day runs from 34% in November, the driest month, to 45% in May, the wettest. Winds in Antrim are highest in March, averaging 3.5 m/s (13 km/h), and lightest in August, at 1.8 m/s (6 km/h). The prevailing wind is from the W. The clearest skies in Antrim come in July, when the sky is typically 34% covered; January is the cloudiest month, at 53%.
Month by month Antrim 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
2°C
-2°C
-3°C
34%
53%
3.2 m/s
1
0
9
February
5°C
0°C
-0°C
36%
48%
3.2 m/s
3
0
18
March
9°C
3°C
4°C
37%
45%
3.5 m/s
11
0
36
April
16°C
8°C
11°C
40%
46%
3.2 m/s
34
4
58
May
20°C
13°C
18°C
45%
52%
2.4 m/s
56
18
62
June
25°C
18°C
25°C
42%
38%
2.3 m/s
61
43
36
July
28°C
21°C
30°C
40%
34%
1.9 m/s
30
62
8
August
27°C
19°C
28°C
40%
39%
1.8 m/s
45
58
17
September
23°C
16°C
23°C
42%
40%
1.9 m/s
65
35
47
October
18°C
10°C
15°C
40%
42%
2.2 m/s
50
10
68
November
10°C
4°C
6°C
34%
40%
2.8 m/s
13
0
42
December
4°C
1°C
-0°C
38%
50%
2.8 m/s
0
0
15
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 Antrim weather by season
Year round, Antrim has days of about 2°C at their warmest in January, its coolest month, and 28°C in July, its warmest; the coolest hours of the day run from -2°C to 21°C through the year, and the average temperature over the year is 13°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.
Antrim weather in winterDecember to February
High 4°CLow -0°CRain 36%
Winter in Antrim has typical daily highs of about 4°C and lows of about -0°C, with a 36% chance of rain on a given day.
Antrim weather in springMarch to May
High 15°CLow 8°CRain 41%
Spring in Antrim has typical daily highs of about 15°C and lows of about 8°C, with a 41% chance of rain on a given day.
Antrim weather in summerJune to August
High 27°CLow 19°CRain 41%
Summer in Antrim has typical daily highs of about 27°C and lows of about 19°C, with a 41% chance of rain on a given day.
Antrim weather in autumnSeptember to November
High 17°CLow 10°CRain 39%
Autumn in Antrim has typical daily highs of about 17°C and lows of about 10°C, with a 39% chance of rain on a given day.
When is the rainy season in Antrim?
Antrim has no sharply defined rainy season: the chance of rain on a given day runs from 34% in November, the driest month, to 45% in May, the wettest.
What time of year is Antrim windiest?
Winds in Antrim are highest in March, averaging 3.5 m/s (13 km/h), and lightest in August, at 1.8 m/s (6 km/h). The prevailing wind is from the W.
What is the average temperature in Antrim year round?
The average temperature in Antrim over the whole year is 13°C. July is the hottest month, with highs of about 28°C; January is the coldest, with lows of about -2°C.