Harlingen weather by month

Warmest month

August

94°F (35°C) average high

Coolest month

January

54°F (12°C) average low

Wettest month

September

3.1 in (79 mm) of rain

Driest month

February

0.5 in (13 mm) of rain

Average temperature and rainfall in Harlingen by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

Month	Avg high	Avg low	Record low / high	Rainfall	Humidity	Wind
January	71°F	54°F	33°F / 85°F	1.5 in	76%	10 mph
February	75°F	57°F	23°F / 86°F	0.5 in	77%	10 mph
March	81°F	64°F	38°F / 91°F	1.5 in	74%	12 mph
April	83°F	68°F	52°F / 94°F	1.1 in	77%	11 mph
May	88°F	73°F	53°F / 96°F	1.5 in	75%	12 mph
June	92°F	77°F	70°F / 99°F	1.1 in	75%	11 mph
July	93°F	78°F	70°F / 99°F	0.9 in	74%	11 mph
August	94°F	79°F	75°F / 100°F	0.6 in	74%	9 mph
September	90°F	77°F	68°F / 98°F	3.1 in	79%	8 mph
October	87°F	70°F	53°F / 94°F	1.2 in	75%	9 mph
November	79°F	63°F	37°F / 91°F	2 in	78%	8 mph
December	75°F	59°F	35°F / 86°F	1.2 in	78%	9 mph

Frost and snow-likely months in Harlingen

No month in Harlingen averages a night of 36°F (2°C) or below. The coldest month is January with an average low of 54°F (12°C) and a record low of 33°F (1°C), so frost is rare and snow is very unlikely.

These records carry temperature and precipitation, not snowfall totals.

Best time to visit Harlingen

The most comfortable time to visit Harlingen is generally December to February, balancing mild daytime temperatures against the driest stretch of the year. The city has a moderate seasonal swing and rain concentrates around September, totalling about 16.1 in (409 mm) a year.

Travellers who prefer heat should aim for August, when highs average 94°F (35°C). September is the month to avoid if rain would spoil your plans — it averages 3.1 in (79 mm), roughly 6× the rainfall of the driest month (February).

Harlingen climate: your questions

Does it snow in Harlingen?

No: the coldest month in Harlingen is January with an average low of 54°F (12°C) and a record low of 33°F (1°C), so snow is very unlikely. What is falling now: Harlingen weather today.

When is the best time to visit Harlingen?

December to February are the most comfortable months in Harlingen, with highs near 74°F (23°C). August is the warmest month, averaging 94°F (35°C) by day; September is the wettest, with 3.1 in (79 mm); and January is the coolest, with lows near 54°F (12°C). What it is doing today: Harlingen weather today.

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Harlingen forecast for what is happening now.