Climate of Seine-Maritime, France
Area-weighted average across Seine-Maritime. For where people actually live and travel, see the cities below.
Seine-Maritime, a subdivision of France, has a seasonal climate on average. Area-weighted monthly temperatures across the whole territory range from 4.3°C / 39.7°F in January to 17.2°C / 63°F in August, with rainfall from 50 mm / 2 in to 82 mm / 3.2 in depending on the season (760 mm / 29.9 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 4.3°C39.7°F | 71 mm2.8″ | — |
| February | 4.6°C40.3°F | 58 mm2.3″ | — |
| March | 6.9°C44.4°F | 56 mm2.2″ | — |
| April | 8.6°C47.5°F | 50 mm2″ | — |
| May | 12°C53.6°F | 58 mm2.3″ | — |
| June | 14.6°C58.3°F | 58 mm2.3″ | — |
| July | 16.8°C62.2°F | 50 mm2″ | Sunny & Mild |
| August | 17.2°C63°F | 50 mm2″ | Sunny & Mild |
| September | 14.8°C58.6°F | 69 mm2.7″ | — |
| October | 11.6°C52.9°F | 77 mm3″ | — |
| November | 7.5°C45.5°F | 81 mm3.2″ | — |
| December | 5.2°C41.4°F | 82 mm3.2″ | — |
Frequently asked questions
What is the best time to visit Seine-Maritime?
The best months to visit Seine-Maritime, France for sunny, dry weather are July, August. The warmest month is August at an area-wide average of 17.2°C / 63°F, and the driest is April with about 50 mm / 2 in of rainfall.
What is the climate of Seine-Maritime?
Seine-Maritime, France has area-weighted monthly average temperatures ranging from 4.3°C / 39.7°F in January to 17.2°C / 63°F in August. Annual rainfall averages about 760 mm / 29.9 in, with the wettest month being December (82 mm / 3.2 in) and the driest April (50 mm / 2 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Seine-Maritime?
The hottest month in Seine-Maritime is August, with an area-wide average temperature of 17.2°C / 63°F.
What is the coldest month in Seine-Maritime?
The coldest month in Seine-Maritime is January, with an area-wide average temperature of 4.3°C / 39.7°F.
When does it rain most in Seine-Maritime?
The wettest month in Seine-Maritime is December, averaging about 82 mm / 3.2 in of rainfall. The driest is April with about 50 mm / 2 in.