Annual mean 11°C · wettest around November · prevailing wind SW
Warmest
21.0 °C
Coldest
4.9 °C
Wettest
30%
Windiest
7.9 m/s
Prevailing
SW
6.6 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
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 11°C. August is the hottest month, with highs of about 21°C; February is the coldest, with lows of about 4°C. Harlingen has no sharply defined rainy season: the chance of rain on a given day runs from 12% in May, the driest month, to 27% in November, the wettest. Winds in Harlingen are highest in February, averaging 7.2 m/s (26 km/h), and lightest in August, at 5.3 m/s (19 km/h). The prevailing wind is from the SW. The clearest skies in Harlingen come in May, when the sky is typically 62% covered; December is the cloudiest month, at 82%.
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
5°C
4°C
-1°C
24%
79%
7.1 m/s
0
0
3
February
6°C
4°C
-1°C
22%
73%
7.2 m/s
0
0
7
March
8°C
5°C
2°C
17%
68%
6.3 m/s
1
0
18
April
11°C
7°C
6°C
15%
64%
5.9 m/s
6
0
42
May
15°C
11°C
11°C
12%
62%
5.6 m/s
27
1
70
June
18°C
14°C
15°C
14%
64%
5.4 m/s
54
5
77
July
20°C
16°C
17°C
16%
66%
5.4 m/s
65
7
76
August
21°C
17°C
18°C
15%
63%
5.3 m/s
69
10
73
September
18°C
14°C
15°C
19%
65%
5.3 m/s
53
4
77
October
14°C
11°C
9°C
24%
74%
6.3 m/s
10
0
65
November
9°C
7°C
3°C
27%
77%
6.5 m/s
0
0
25
December
6°C
5°C
0°C
24%
82%
6.8 m/s
0
0
7
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 5°C at their warmest in January, its coolest month, and 21°C in August, its warmest; the coolest hours of the day run from 4°C to 17°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around November and least likely around May. 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 6°CLow 4°CRain 23%
Winter in Harlingen has typical daily highs of about 6°C and lows of about 4°C, with a 23% chance of rain on a given day.
Harlingen weather in springMarch to May
High 12°CLow 8°CRain 15%
Spring in Harlingen has typical daily highs of about 12°C and lows of about 8°C, with a 15% chance of rain on a given day.
Harlingen weather in summerJune to August
High 20°CLow 16°CRain 15%
Summer in Harlingen has typical daily highs of about 20°C and lows of about 16°C, with a 15% chance of rain on a given day.
Harlingen weather in autumnSeptember to November
High 14°CLow 11°CRain 24%
Autumn in Harlingen has typical daily highs of about 14°C and lows of about 11°C, with a 24% 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 12% in May, the driest month, to 27% in November, the wettest.
What time of year is Harlingen windiest?
Winds in Harlingen are highest in February, averaging 7.2 m/s (26 km/h), and lightest in August, at 5.3 m/s (19 km/h). The prevailing wind is from the SW.
What is the average temperature in Harlingen year round?
The average temperature in Harlingen over the whole year is 11°C. August is the hottest month, with highs of about 21°C; February is the coldest, with lows of about 4°C.