Home › Cities › France › La Seyne-sur-Mer
La Seyne-sur-Mer, Provence-Alpes-Côte d'Azur climate
Csa Hot-summer Mediterranean
La Seyne-sur-Mer has a seasonal mild-temperate climate (Hot-summer Mediterranean, Köppen Csa). The hottest month is August with an average daily high near 28°C, while the coldest is January averaging around 6°C at night. Precipitation totals about 550 mm a year and is strongly seasonal — November alone averages 89 mm while July barely receives 6 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsLa Seyne-sur-Mer climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 12 | 12 | 15 | 17 | 21 | 25 | 28 | 28 | 24 | 20 | 15 | 13 |
| Avg temp (°C) | 9 | 9 | 12 | 14 | 17 | 21 | 24 | 24 | 20 | 17 | 13 | 10 |
| Avg low (°C) | 6 | 6 | 8 | 10 | 14 | 17 | 20 | 20 | 17 | 14 | 10 | 7 |
| Precipitation (mm) | 60 | 40 | 51 | 51 | 35 | 19 | 6 | 7 | 50 | 79 | 89 | 64 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 12 | 12 | 15 | 17 | 21 | 25 |
| Avg temp (°C) | 9 | 9 | 12 | 14 | 17 | 21 |
| Avg low (°C) | 6 | 6 | 8 | 10 | 14 | 17 |
| Precipitation (mm) | 60 | 40 | 51 | 51 | 35 | 19 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 28 | 24 | 20 | 15 | 13 |
| Avg temp (°C) | 24 | 24 | 20 | 17 | 13 | 10 |
| Avg low (°C) | 20 | 20 | 17 | 14 | 10 | 7 |
| Precipitation (mm) | 6 | 7 | 50 | 79 | 89 | 64 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 7 | 7 | 8 | 7 | 4 | 3 | 3 | 5 | 8 | 10 | 9 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | 0.6 | 2 | 2 | 0.1 | — | — | — |
| Days with low ≤ 0°C (days) | 0.4 | 0.7 | 0.0 | — | — | — | — | — | — | — | 0.0 | 0.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 7 | 7 | 8 | 7 | 4 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | 0.6 |
| Days with low ≤ 0°C (days) | 0.4 | 0.7 | 0.0 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 3 | 3 | 5 | 8 | 10 | 9 |
| Days with high ≥ 32°C (days) | 2 | 2 | 0.1 | — | — | — |
| Days with low ≤ 0°C (days) | — | — | — | — | 0.0 | 0.3 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 50 | 50 | 52 | 52 | 41 | 29 | 35 | 43 | 55 | 55 | 54 |
| Clear days (≤ 30% cloud) | 9 | 9 | 10 | 10 | 10 | 13 | 19 | 16 | 13 | 9 | 8 | 9 |
| Partly cloudy days (30–70%) | 10 | 10 | 11 | 10 | 10 | 11 | 10 | 10 | 10 | 11 | 11 | 11 |
| Cloudy days (≥ 70%) | 11 | 9 | 10 | 11 | 11 | 6 | 3 | 4 | 7 | 12 | 11 | 11 |
| Relative humidity (%) | 79 | 78 | 78 | 78 | 78 | 75 | 72 | 73 | 75 | 80 | 79 | 79 |
| Wind speed (m/s) | 5.6 | 5.6 | 5.4 | 5.1 | 4.5 | 4.2 | 4.4 | 4.2 | 4.6 | 5.1 | 5.6 | 5.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 50 | 50 | 52 | 52 | 41 |
| Clear days (≤ 30% cloud) | 9 | 9 | 10 | 10 | 10 | 13 |
| Partly cloudy days (30–70%) | 10 | 10 | 11 | 10 | 10 | 11 |
| Cloudy days (≥ 70%) | 11 | 9 | 10 | 11 | 11 | 6 |
| Relative humidity (%) | 79 | 78 | 78 | 78 | 78 | 75 |
| Wind speed (m/s) | 5.6 | 5.6 | 5.4 | 5.1 | 4.5 | 4.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 29 | 35 | 43 | 55 | 55 | 54 |
| Clear days (≤ 30% cloud) | 19 | 16 | 13 | 9 | 8 | 9 |
| Partly cloudy days (30–70%) | 10 | 10 | 10 | 11 | 11 | 11 |
| Cloudy days (≥ 70%) | 3 | 4 | 7 | 12 | 11 | 11 |
| Relative humidity (%) | 72 | 73 | 75 | 80 | 79 | 79 |
| Wind speed (m/s) | 4.4 | 4.2 | 4.6 | 5.1 | 5.6 | 5.9 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 27 years of daily observations at Cap Cepet, a weather station, about 5 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.