Harlingen weather in September 2025

The weather in Harlingen in September is very hot. The average temperatures are between 26°C and 33°C, drinking water regularly is advisable.

You can expect about 3 to 8 days of rain in Harlingen during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Our weather forecast can give you a great sense of what weather to expect in Harlingen in September 2025.

If you’re planning to visit Harlingen in the near future, we highly recommend that you review the 14 day weather forecast for Harlingen before you arrive.

Temperatures

33° / 26°

Rainy Days

Snowy Days

Dry Days

Rainfall

Sun Hours

11.4

Hrs

Sun	Mon	Tue	Wed	Thu	Fri	Sat
	1 36° /27°	2 35° /26°	3 34° /26°	4 34° /27°	5 32° /25°	6 33° /26°
7 32° /25°	8 33° /26°	9 34° /26°	10 33° /25°	11 34° /25°	12 32° /25°	13 33° /26°
14 34° /25°	15 33° /26°	16 33° /26°	17 33° /26°	18 33° /25°	19 32° /26°	20 33° /25°
21 33° /25°	22 32° /25°	23 32° /25°	24 33° /25°	25 33° /25°	26 32° /25°	27 34° /24°
28 34° /24°	29 33° /24°	30 32° /24°

Explore the weather in Harlingen in other months

Harlingen annual weather

Month	Temperatures	Rainy Days	Dry Days	Rainfall	Weather	More details
January	21° / 14°	2	29	30 mm	Good	Harlingen in January
February	23° / 15°	1	27	17 mm	Perfect	Harlingen in February
March	26° / 18°	1	30	20 mm	Perfect	Harlingen in March
April	29° / 21°	2	28	20 mm	Good	Harlingen in April
May	31° / 23°	3	28	34 mm	Good	Harlingen in May
June	34° / 25°	4	26	59 mm	Ok	Harlingen in June
July	35° / 26°	3	28	37 mm	Ok	Harlingen in July
August	35° / 27°	3	28	30 mm	Ok	Harlingen in August
September	33° / 26°	5	25	78 mm	Good	Harlingen in September
October	30° / 23°	2	29	32 mm	Good	Harlingen in October
November	25° / 18°	1	29	28 mm	Perfect	Harlingen in November
December	22° / 15°	2	29	24 mm	Good	Harlingen in December