La Seyne-sur-Mer in Spring
In spring (March, April and May), La Seyne-sur-Mer sees average daytime highs around 16°C and overnight lows near 12°C, with 142 mm of rain over about 18 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs climb from about 13°C in early March to 21°C by late May. The sky is clear or mostly clear about 49% of the time across spring, and the air most often feels dry.
Spring is La Seyne-sur-Mer's 3rd-best season to visit on our travel score. For the whole year in context, see La Seyne-sur-Mer's year-round climate.
- Avg daytime high
- 16°C
- 3rd-warmest season
- Avg overnight low
- 12°C
- Rainfall
- 142 mm
- 18 wet days
- Avg wind
- 18 km/h
- Travel score
- 5.7
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in La Seyne-sur-Mer in Spring
Over the season highs climb from about 13°C in early March to 21°C by late May.
A typical spring day in La Seyne-sur-Mer reaches about 16°C and drops to 12°C overnight. The warmest of the three months is May, the coolest March.
La Seyne-sur-Mer weather by month
How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 12° / 8° | 62 | 7.4 | 9.2 | 3.4 |
| Feb | 12° / 8° | 49 | 6.3 | 10.2 | 3.6 |
| Mar | 14° / 10° | 43 | 5.5 | 11.6 | 4.7 |
| Apr | 16° / 12° | 58 | 7.3 | 13.1 | 5.5 |
| May | 19° / 15° | 42 | 5.4 | 14.4 | 7.0 |
| Jun | 23° / 18° | 24 | 3.5 | 15.1 | 8.4 |
| Jul | 26° / 21° | 8 | 1.4 | 14.9 | 8.8 |
| Aug | 26° / 21° | 11 | 1.8 | 13.8 | 8.5 |
| Sep | 23° / 19° | 60 | 5.7 | 12.3 | 8.0 |
| Oct | 19° / 16° | 91 | 8.1 | 10.8 | 6.6 |
| Nov | 15° / 12° | 104 | 10.4 | 9.5 | 4.8 |
| Dec | 13° / 9° | 71 | 7.9 | 8.9 | 3.8 |
Cloud cover in Spring
The sky is clear or mostly clear about 49% of the time across spring.
Chance of precipitation in Spring
La Seyne-sur-Mer gets around 142 mm of rain over 18 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 18 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 10 h 54 min in early March to 14 h 54 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.5 kWh/m².
Hazard calendar for La Seyne-sur-Mer
In spring, La Seyne-sur-Mer overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
La Seyne-sur-Mer's rainy season runs September–February, when most of the year's rain falls.
Is spring a good time to visit La Seyne-sur-Mer?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit La Seyne-sur-Mer for sightseeing.
What to pack for La Seyne-sur-Mer in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, La Seyne-sur-Mer sees daytime highs around 16°C and nights near 12°C. Pack sun protection. Worth having: a warm layer. About 18 days see rain.
Sea temperature near La Seyne-sur-Mer in Spring
The nearest coast averages about 15°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 23°C and coldest in February near 13°C.
It's comfortable for a long swim from Jun 19 to Oct 8 — about 3.7 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 14 | 13 | 13 | 14 | 17 | 20 | 22 | 23 | 22 | 20 | 17 | 15 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Refreshing | Refreshing | Cool | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 14 | Bracing |
| Feb | 13 | Bracing |
| Mar | 13 | Bracing |
| Apr | 14 | Bracing |
| May | 17 | Cool |
| Jun | 20 | Cool |
| Jul | 22 | Refreshing |
| Aug | 23 | Refreshing |
| Sep | 22 | Refreshing |
| Oct | 20 | Cool |
| Nov | 17 | Cool |
| Dec | 15 | Cool |
UV index in La Seyne-sur-Mer in Spring
Clear-sky midday UV across spring averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in La Seyne-sur-Mer peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 3 | 4 | 7 | 6 | 8 | 9 | 7 | 5 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 7 | High |
| May | 6 | High |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 7 | Very high |
| Sep | 5 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in La Seyne-sur-Mer in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in La Seyne-sur-Mer is worst in March — around 15 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 13 | 14 | 15 | 15 | 14 | 13 | 12 | 13 | 12 | 12 | 10 | 10 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 13 | Moderate |
| Feb | 14 | Moderate |
| Mar | 15 | Moderate |
| Apr | 15 | Moderate |
| May | 14 | Moderate |
| Jun | 13 | Moderate |
| Jul | 12 | Moderate |
| Aug | 13 | Moderate |
| Sep | 12 | Good |
| Oct | 12 | Moderate |
| Nov | 10 | Good |
| Dec | 10 | Good |
Where is La Seyne-sur-Mer?
La Seyne-sur-Mer sits at 43.1°N, 5.9°E, 5 m above sea level, in France. The nearest listed city is Six-Fours-les-Plages, 5.0 km away.
Topography around La Seyne-sur-Mer
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of La Seyne-sur-Mer.
Within 3 km, the terrain around La Seyne-sur-Mer has only modest variations in elevation — a maximum elevation change of 196 m around an average of 24 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 810 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,558 m.
The land around La Seyne-sur-Mer is covered by artificial surfaces (54%) and trees (22%) within 3 km, water (49%) and trees (30%) within 16 km, and water (45%) and trees (39%) within 80 km.
France travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / E
- 230 V · 50 Hz
- Prices
- ≈ 77% of US
- price level, 2025
- GDP per capita
- $48,986
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 1.3
- per 100k, 2023
- Road deaths
- 5.1
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 539
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for La Seyne-sur-Mer (43.1032°, 5.8782°, elevation 5 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.