Weather in Paris

July is the warmest month (average 19.1°C, high 24.7°C) and January is the coolest (average 3.3°C, low 0.4°C). That 15.8°C swing in monthly averages is the first thing to plan around in Paris.

Rain is about 662 mm of rain spread through the year. The wettest month is December at 70 mm; the driest is April at 39 mm. Paris is in France at 48.9°N. The 2001–2020 NASA POWER daily record describes a mild oceanic climate. On this site the months that score closest to a 22°C day, lighter rain, and moderate humidity are July, August, and September.

How warm Paris gets

Monthly average highs run from 6.2°C in January to 24.7°C in July. Nights follow the same curve: 0.4°C in January and 13.5°C in July.

Mean high across all twelve months is 15.7°C and mean low is 6.4°C. These are 20-year grid averages, so a city station can read a few degrees warmer or cooler.

When Paris gets wet

Annual rainfall is 662 mm. December leads at 70 mm; April is lightest at 39 mm.

A rainy day here is a day with at least 1 mm in the NASA POWER series. December averages 13 such days; April averages 10.

Distinctive months in Paris

The year bottoms out in January. Plan for 0.4°C at night and 6.2°C in the afternoon. April is the driest month, averaging only 39 mm across 10 rainy days. Highs sit near 15.9°C. July is the warmest month. Afternoon highs average 24.7°C and nights settle near 13.5°C, with 55 mm of rain. September stands apart from the months beside it: 21.4°C / 10.3°C and 42 mm.

October stands apart from the months beside it: 16.7°C / 7.6°C and 57 mm. November brings 61 mm and 12 rainy days; temperatures run from 4.0°C to 10.7°C. December is the wettest month — 70 mm and 13 rainy days, with 93% humidity.

Best months to visit Paris

The three months with the highest comfort score are July, August, and September: July (19.1°C average, 55 mm, 72% humidity); August (18.9°C average, 59 mm, 72% humidity); September (15.9°C average, 42 mm, 76% humidity). They fall in calendar order. The score rewards averages near 22°C, lower rainfall, and humidity near 60%. It is a climate score, not a festival or price calendar.

If you prefer the hottest stretch, that is July. The coolest stretch is January.

How Paris compares inside France

Paris is the only France city in this dataset, so the figures on this page are the national sample we publish. They still come from the same NASA POWER daily series (2001–2020) used everywhere else on the site.