La Seyne-sur-Mer weather in December
In December, La Seyne-sur-Mer sees average daytime highs of 13°C and overnight lows near 9°C, with 71 mm of precipitation across 7.9 wet days and about 8.9 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.
Day-to-day highs hold fairly steady near 13°C through the month. The sky is clear or mostly clear about 43% of the time in December, and the air most often feels dry.
Daylight stretches from about 9 hours at the start of December to 8 h 54 min by month's end. Set against the rest of the year, December is La Seyne-sur-Mer's 10th-clearest and 1st-windiest month. For the whole year in context, see La Seyne-sur-Mer's year-round climate.
- Daytime high
- 13°
- 10th warmest
- Overnight low
- 9°
- 3rd coldest
- Precipitation
- 71 mm
- 7.9 wet days
- Daylight
- 8 h 48 min
- 8:08 AM – 4:57 PM
- Cloud cover
- 50%
- 10th clearest
- Wind
- 20 km/h
- 1st windiest
- Solar energy
- 1.63 kWh/m²
- Travel score
- 3.8
- out of 10
Temperature in December
Day-to-day highs hold fairly steady near 13°C through the month.
A typical December day in La Seyne-sur-Mer reaches about 13°C in the afternoon and slips back to 9°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 15°C. Set against its neighbours, December runs about 3°C cooler than November and about 1°C warmer than January.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Avg low (°C) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 14 | 10 |
| 2 | 14 | 10 |
| 3 | 13 | 10 |
| 4 | 13 | 10 |
| 5 | 13 | 10 |
| 6 | 13 | 10 |
| 7 | 13 | 10 |
| 8 | 13 | 10 |
| 9 | 13 | 10 |
| 10 | 13 | 10 |
| 11 | 13 | 10 |
| 12 | 13 | 10 |
| 13 | 13 | 10 |
| 14 | 13 | 9 |
| 15 | 13 | 9 |
| 16 | 13 | 9 |
| 17 | 13 | 9 |
| 18 | 13 | 9 |
| 19 | 12 | 9 |
| 20 | 12 | 9 |
| 21 | 12 | 9 |
| 22 | 12 | 9 |
| 23 | 12 | 9 |
| 24 | 12 | 9 |
| 25 | 12 | 9 |
| 26 | 12 | 9 |
| 27 | 12 | 9 |
| 28 | 12 | 9 |
| 29 | 12 | 9 |
| 30 | 12 | 9 |
| 31 | 12 | 9 |
La Seyne-sur-Mer weather by month
How December compares with the rest of the year at a glance. December is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.
| 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 December
The sky is clear or mostly clear about 43% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 43%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 57 | 57 | 58 | 58 | 58 | 58 | 59 | 59 | 59 | 59 | 59 | 58 | 58 | 58 | 57 | 57 | 56 | 56 | 56 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 56 | 56 | 56 |
| Cloudier (%) | 43 | 43 | 42 | 42 | 42 | 42 | 41 | 41 | 41 | 41 | 41 | 42 | 42 | 42 | 43 | 43 | 44 | 44 | 44 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 44 | 44 | 44 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 57 | 43 |
| 2 | 57 | 43 |
| 3 | 58 | 42 |
| 4 | 58 | 42 |
| 5 | 58 | 42 |
| 6 | 58 | 42 |
| 7 | 59 | 41 |
| 8 | 59 | 41 |
| 9 | 59 | 41 |
| 10 | 59 | 41 |
| 11 | 59 | 41 |
| 12 | 58 | 42 |
| 13 | 58 | 42 |
| 14 | 58 | 42 |
| 15 | 57 | 43 |
| 16 | 57 | 43 |
| 17 | 56 | 44 |
| 18 | 56 | 44 |
| 19 | 56 | 44 |
| 20 | 55 | 45 |
| 21 | 55 | 45 |
| 22 | 55 | 45 |
| 23 | 55 | 45 |
| 24 | 55 | 45 |
| 25 | 55 | 45 |
| 26 | 55 | 45 |
| 27 | 55 | 45 |
| 28 | 55 | 45 |
| 29 | 56 | 44 |
| 30 | 56 | 44 |
| 31 | 56 | 44 |
Chance of precipitation in December
La Seyne-sur-Mer gets around 71 mm of rain and snow over 7.9 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 25% and peaks near 30% on the wettest days, and about 0 day brings snow.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 30 | 29 | 29 | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 24 | 24 | 24 |
| Rain chance (%) | |
|---|---|
| 1 | 30 |
| 2 | 29 |
| 3 | 29 |
| 4 | 28 |
| 5 | 28 |
| 6 | 27 |
| 7 | 27 |
| 8 | 26 |
| 9 | 26 |
| 10 | 26 |
| 11 | 25 |
| 12 | 25 |
| 13 | 24 |
| 14 | 24 |
| 15 | 24 |
| 16 | 24 |
| 17 | 24 |
| 18 | 24 |
| 19 | 24 |
| 20 | 24 |
| 21 | 24 |
| 22 | 24 |
| 23 | 24 |
| 24 | 24 |
| 25 | 24 |
| 26 | 24 |
| 27 | 24 |
| 28 | 25 |
| 29 | 24 |
| 30 | 24 |
| 31 | 24 |
Humidity in December
Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 95 | 95 | 96 | 96 | 97 | 97 | 98 | 98 | 99 | 99 | 99 | 99 | 99 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Comfortable (%) | 5 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| 1 | 95 | 5 |
| 2 | 95 | 5 |
| 3 | 96 | 4 |
| 4 | 96 | 4 |
| 5 | 97 | 3 |
| 6 | 97 | 3 |
| 7 | 98 | 2 |
| 8 | 98 | 2 |
| 9 | 99 | 1 |
| 10 | 99 | 1 |
| 11 | 99 | 1 |
| 12 | 99 | 1 |
| 13 | 99 | 1 |
| 14 | 100 | 0 |
| 15 | 100 | 0 |
| 16 | 100 | 0 |
| 17 | 100 | 0 |
| 18 | 100 | 0 |
| 19 | 100 | 0 |
| 20 | 100 | 0 |
| 21 | 100 | 0 |
| 22 | 100 | 0 |
| 23 | 100 | 0 |
| 24 | 100 | 0 |
| 25 | 100 | 0 |
| 26 | 100 | 0 |
| 27 | 100 | 0 |
| 28 | 100 | 0 |
| 29 | 100 | 0 |
| 30 | 100 | 0 |
| 31 | 100 | 0 |
Wind in December
Winds average 20 km/h in December, the windiest month of the year.
Across December, daily wind ranges from about 20 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 20 | breezy |
| 2 | 21 | breezy |
| 3 | 21 | breezy |
| 4 | 21 | breezy |
| 5 | 21 | breezy |
| 6 | 21 | breezy |
| 7 | 21 | breezy |
| 8 | 21 | breezy |
| 9 | 20 | breezy |
| 10 | 20 | breezy |
| 11 | 20 | breezy |
| 12 | 20 | breezy |
| 13 | 20 | breezy |
| 14 | 20 | breezy |
| 15 | 20 | breezy |
| 16 | 20 | breezy |
| 17 | 20 | breezy |
| 18 | 20 | breezy |
| 19 | 20 | breezy |
| 20 | 20 | breezy |
| 21 | 20 | breezy |
| 22 | 20 | breezy |
| 23 | 20 | breezy |
| 24 | 20 | breezy |
| 25 | 20 | breezy |
| 26 | 20 | breezy |
| 27 | 20 | breezy |
| 28 | 20 | light breeze |
| 29 | 20 | light breeze |
| 30 | 20 | light breeze |
| 31 | 20 | light breeze |
Sunrise & sunset in December
Daylight runs from about 9 hours at the start of December to 8 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 6 minutes over December. Sunrise moves from 7:55 AM to 8:14 AM, and sunset from 4:58 PM to 5:05 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.9 |
| Sunrise (AM) | 7:55 | 7:56 | 7:57 | 7:58 | 7:59 | 8:00 | 8:01 | 8:02 | 8:02 | 8:03 | 8:04 | 8:05 | 8:06 | 8:06 | 8:07 | 8:08 | 8:08 | 8:09 | 8:10 | 8:10 | 8:11 | 8:11 | 8:12 | 8:12 | 8:12 | 8:13 | 8:13 | 8:13 | 8:14 | 8:14 | 8:14 |
| Sunset (PM) | 4:58 | 4:57 | 4:57 | 4:57 | 4:57 | 4:57 | 4:57 | 4:57 | 4:57 | 4:57 | 4:57 | 4:57 | 4:57 | 4:57 | 4:57 | 4:57 | 4:58 | 4:58 | 4:58 | 4:59 | 4:59 | 5:00 | 5:00 | 5:01 | 5:01 | 5:02 | 5:02 | 5:03 | 5:04 | 5:05 | 5:05 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 9.0 | 7:55 | 4:58 |
| 2 | 9.0 | 7:56 | 4:57 |
| 3 | 9.0 | 7:57 | 4:57 |
| 4 | 9.0 | 7:58 | 4:57 |
| 5 | 9.0 | 7:59 | 4:57 |
| 6 | 8.9 | 8:00 | 4:57 |
| 7 | 8.9 | 8:01 | 4:57 |
| 8 | 8.9 | 8:02 | 4:57 |
| 9 | 8.9 | 8:02 | 4:57 |
| 10 | 8.9 | 8:03 | 4:57 |
| 11 | 8.9 | 8:04 | 4:57 |
| 12 | 8.9 | 8:05 | 4:57 |
| 13 | 8.9 | 8:06 | 4:57 |
| 14 | 8.8 | 8:06 | 4:57 |
| 15 | 8.8 | 8:07 | 4:57 |
| 16 | 8.8 | 8:08 | 4:57 |
| 17 | 8.8 | 8:08 | 4:58 |
| 18 | 8.8 | 8:09 | 4:58 |
| 19 | 8.8 | 8:10 | 4:58 |
| 20 | 8.8 | 8:10 | 4:59 |
| 21 | 8.8 | 8:11 | 4:59 |
| 22 | 8.8 | 8:11 | 5:00 |
| 23 | 8.8 | 8:12 | 5:00 |
| 24 | 8.8 | 8:12 | 5:01 |
| 25 | 8.8 | 8:12 | 5:01 |
| 26 | 8.8 | 8:13 | 5:02 |
| 27 | 8.8 | 8:13 | 5:02 |
| 28 | 8.8 | 8:13 | 5:03 |
| 29 | 8.8 | 8:14 | 5:04 |
| 30 | 8.8 | 8:14 | 5:05 |
| 31 | 8.9 | 8:14 | 5:05 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 1.63 kWh/m² — the year's lowest.
For context, solar energy here swings from a low near 1.63 kWh/m² to a high of 7.34 kWh/m² in July across the year — December's 1.63 kWh/m² sits near the bottom.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 1.8 | 1.8 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 |
| Level | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 1.8 | Dim |
| 2 | 1.8 | Dim |
| 3 | 1.7 | Dim |
| 4 | 1.7 | Dim |
| 5 | 1.7 | Dim |
| 6 | 1.7 | Dim |
| 7 | 1.7 | Dim |
| 8 | 1.7 | Dim |
| 9 | 1.7 | Dim |
| 10 | 1.7 | Dim |
| 11 | 1.7 | Dim |
| 12 | 1.6 | Dim |
| 13 | 1.6 | Dim |
| 14 | 1.6 | Dim |
| 15 | 1.6 | Dim |
| 16 | 1.6 | Dim |
| 17 | 1.6 | Dim |
| 18 | 1.6 | Dim |
| 19 | 1.6 | Dim |
| 20 | 1.6 | Dim |
| 21 | 1.6 | Dim |
| 22 | 1.6 | Dim |
| 23 | 1.6 | Dim |
| 24 | 1.6 | Dim |
| 25 | 1.6 | Dim |
| 26 | 1.6 | Dim |
| 27 | 1.6 | Dim |
| 28 | 1.6 | Dim |
| 29 | 1.6 | Dim |
| 30 | 1.6 | Dim |
| 31 | 1.6 | Dim |
Hazard calendar for La Seyne-sur-Mer
In December, La Seyne-sur-Mer sits inside 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 December a good time to visit La Seyne-sur-Mer?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a weaker month for outdoor sightseeing in La Seyne-sur-Mer.
What to pack for La Seyne-sur-Mer in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, La Seyne-sur-Mer sees daytime highs around 13°C and nights near 9°C. Worth packing: a warm layer and a windbreaker. About 8 days see rain.
Sea temperature near La Seyne-sur-Mer in December
The nearest coast averages about 15°C in December — 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 December
Clear-sky midday UV in December peaks around 1. 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 December
Average fine-particle pollution (PM2.5) through the year — so you can see where December 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).