Annual mean 24°C · wettest around June · prevailing wind SE
Warmest
34.5 °C
Coldest
19.2 °C
Wettest
36%
Windiest
6.4 m/s
Prevailing
SE
5.4 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 Harlingen over the whole year is 24°C. August is the hottest month, with highs of about 34°C; January is the coldest, with lows of about 13°C. Harlingen has no sharply defined rainy season: the chance of rain on a given day runs from 22% in February, the driest month, to 28% in June, the wettest. Winds in Harlingen are highest in May, averaging 4.8 m/s (17 km/h), and lightest in September, at 3.2 m/s (12 km/h). The prevailing wind is from the SE. The clearest skies in Harlingen come in August, when the sky is typically 23% covered; April is the cloudiest month, at 56%.
Month by month Harlingen 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
20°C
13°C
17°C
24%
49%
3.9 m/s
60
13
60
February
22°C
15°C
19°C
22%
52%
4.5 m/s
61
25
47
March
25°C
19°C
24°C
22%
55%
4.7 m/s
62
38
36
April
28°C
21°C
27°C
24%
56%
4.7 m/s
46
53
18
May
31°C
25°C
31°C
27%
54%
4.8 m/s
13
53
3
June
33°C
26°C
34°C
28%
34%
4.3 m/s
2
33
0
July
33°C
26°C
35°C
27%
26%
4.3 m/s
2
27
0
August
34°C
26°C
36°C
24%
23%
3.9 m/s
1
16
0
September
32°C
25°C
34°C
28%
29%
3.2 m/s
6
32
1
October
29°C
21°C
29°C
26%
35%
3.4 m/s
21
53
12
November
24°C
17°C
23°C
27%
48%
3.6 m/s
48
45
32
December
22°C
15°C
20°C
25%
51%
3.6 m/s
63
26
49
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 Harlingen weather by season
Year round, Harlingen has days of about 20°C at their warmest in January, its coolest month, and 34°C in August, its warmest; the coolest hours of the day run from 13°C to 26°C through the year, and the average temperature over the year is 24°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.
Harlingen weather in winterDecember to February
High 21°CLow 14°CRain 23%
Winter in Harlingen has typical daily highs of about 21°C and lows of about 14°C, with a 23% chance of rain on a given day.
Harlingen weather in springMarch to May
High 28°CLow 21°CRain 24%
Spring in Harlingen has typical daily highs of about 28°C and lows of about 21°C, with a 24% chance of rain on a given day.
Harlingen weather in summerJune to August
High 33°CLow 26°CRain 26%
Summer in Harlingen has typical daily highs of about 33°C and lows of about 26°C, with a 26% chance of rain on a given day.
Harlingen weather in autumnSeptember to November
High 28°CLow 21°CRain 27%
Autumn in Harlingen has typical daily highs of about 28°C and lows of about 21°C, with a 27% chance of rain on a given day.
When is the rainy season in Harlingen?
Harlingen has no sharply defined rainy season: the chance of rain on a given day runs from 22% in February, the driest month, to 28% in June, the wettest.
What time of year is Harlingen windiest?
Winds in Harlingen are highest in May, averaging 4.8 m/s (17 km/h), and lightest in September, at 3.2 m/s (12 km/h). The prevailing wind is from the SE.
What is the average temperature in Harlingen year round?
The average temperature in Harlingen over the whole year is 24°C. August is the hottest month, with highs of about 34°C; January is the coldest, with lows of about 13°C.