Longjumeau weather by month

Warmest month

July

26°C average high

Coolest month

January

2°C average low

Wettest month

May

60 mm of rain

Driest month

April

36 mm of rain

Average temperature and rainfall in Longjumeau 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	7°C	2°C	-11°C / 14°C	45 mm	88%	14 km/h
February	10°C	3°C	-3°C / 21°C	40 mm	81%	15 km/h
March	12°C	4°C	-4°C / 19°C	45 mm	76%	15 km/h
April	16°C	7°C	0°C / 26°C	36 mm	68%	15 km/h
May	19°C	9°C	2°C / 32°C	60 mm	71%	14 km/h
June	24°C	14°C	8°C / 40°C	50 mm	68%	12 km/h
July	26°C	16°C	8°C / 41°C	37 mm	64%	12 km/h
August	26°C	15°C	10°C / 36°C	52 mm	66%	12 km/h
September	22°C	13°C	6°C / 34°C	43 mm	73%	11 km/h
October	17°C	10°C	4°C / 26°C	45 mm	83%	13 km/h
November	11°C	6°C	1°C / 19°C	50 mm	88%	13 km/h
December	8°C	4°C	-2°C / 13°C	45 mm	89%	14 km/h

Frost and snow-likely months in Longjumeau

No month in Longjumeau averages a night of 2°C or below. The coldest month is January with an average low of 2°C and a record low of -11°C, so frost is rare and snow is very unlikely.

These records carry temperature and precipitation, not snowfall totals.

Best time to visit Longjumeau

The most comfortable time to visit Longjumeau is generally June to July and September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rainfall is spread evenly across the months, totalling about 548 mm a year.

Travellers who prefer heat should aim for July, when highs average 26°C. May is the month to avoid if rain would spoil your plans — it averages 60 mm, roughly 2× the rainfall of the driest month (April).

Longjumeau climate: your questions

Does it snow in Longjumeau?

No: the coldest month in Longjumeau is January with an average low of 2°C and a record low of -11°C, so snow is very unlikely. What is falling now: Longjumeau weather today.

Will Longjumeau get snow this winter?

Longjumeau's winter months average lows of 4°C in December, 2°C in January and 3°C in February, with about 130 mm of precipitation across the three; 0 of them sit at or below 0°C, so snow is unlikely. The records hold no snowfall totals. The next 15 days: Longjumeau 10-day forecast.

When is the best time to visit Longjumeau?

June to July and September are the most comfortable months in Longjumeau, with highs near 24°C. July is the warmest month, averaging 26°C by day; May is the wettest, with 60 mm; and January is the coolest, with lows near 2°C. What it is doing today: Longjumeau weather today.

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