Castelnau-le-Lez in Fall
In fall (September, October and November), Castelnau-le-Lez sees average daytime highs around 20°C and overnight lows near 11°C, with 367 mm of rain over about 28 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Over the season highs ease from about 28°C in early September to 13°C by late November. The sky is clear or mostly clear about 43% of the time across fall, and the air most often feels dry.
Fall is Castelnau-le-Lez's 3rd-best season to visit on our travel score. For the whole year in context, see Castelnau-le-Lez's year-round climate.
- Avg daytime high
- 20°C
- 2nd-warmest season
- Avg overnight low
- 11°C
- Rainfall
- 367 mm
- 28 wet days
- Avg wind
- 11 km/h
- Travel score
- 6.1
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Castelnau-le-Lez in Fall
Over the season highs ease from about 28°C in early September to 13°C by late November.
A typical fall day in Castelnau-le-Lez reaches about 20°C and drops to 11°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Castelnau-le-Lez
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
fall sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Castelnau-le-Lez weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 11° / 3° | 74 | 8.3 | 0.9 | 9.1 | 2.9 |
| Feb | 13° / 3° | 45 | 6.1 | 0.5 | 10.2 | 3.8 |
| Mar | 16° / 6° | 56 | 6.5 | 0.1 | 11.6 | 5.6 |
| Apr | 19° / 9° | 75 | 9 | 0 | 13.2 | 6.3 |
| May | 23° / 12° | 61 | 8.2 | 0 | 14.5 | 7.1 |
| Jun | 27° / 16° | 37 | 6 | 0 | 15.2 | 7.1 |
| Jul | 30° / 18° | 24 | 3.6 | 0 | 14.9 | 5.9 |
| Aug | 30° / 18° | 41 | 5.2 | 0 | 13.8 | 6.0 |
| Sep | 25° / 15° | 111 | 6.9 | 0 | 12.3 | 7.5 |
| Oct | 20° / 11° | 136 | 11 | 0 | 10.8 | 6.3 |
| Nov | 15° / 7° | 120 | 10.5 | 0 | 9.5 | 4.5 |
| Dec | 12° / 4° | 72 | 8.6 | 0.3 | 8.8 | 3.2 |
Cloud cover in Fall
The sky is clear or mostly clear about 43% of the time across fall.
Chance of precipitation in Fall
Castelnau-le-Lez gets around 367 mm of rain over 28 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 11 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 13 h 06 min in early September to 9 hours by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.1 kWh/m².
Hazard calendar for Castelnau-le-Lez
In fall, Castelnau-le-Lez overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Castelnau-le-Lez's rainy season runs September–January, when most of the year's rain falls.
Is fall a good time to visit Castelnau-le-Lez?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Castelnau-le-Lez for sightseeing.
What to pack for Castelnau-le-Lez in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Castelnau-le-Lez sees daytime highs around 20°C and nights near 11°C. Worth packing: light clothes, a warm layer, rain gear and sun protection. About 28 days see rain.
Sea temperature near Castelnau-le-Lez in Fall
The nearest coast averages about 18°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 29 km away) is warmest in August at about 22°C and coldest in February near 12°C.
It's comfortable for a long swim from Jun 26 to Sep 17 — about 2.8 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 12 | 12 | 12 | 14 | 16 | 19 | 21 | 22 | 20 | 18 | 16 | 14 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Refreshing | Refreshing | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 12 | Bracing |
| Feb | 12 | Bracing |
| Mar | 12 | Bracing |
| Apr | 14 | Bracing |
| May | 16 | Cool |
| Jun | 19 | Cool |
| Jul | 21 | Refreshing |
| Aug | 22 | Refreshing |
| Sep | 20 | Refreshing |
| Oct | 18 | Cool |
| Nov | 16 | Cool |
| Dec | 14 | Bracing |
UV index in Castelnau-le-Lez in Fall
Clear-sky midday UV across fall averages around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Castelnau-le-Lez 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 | 6 | 6 | 7 | 9 | 7 | 5 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | High | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 6 | High |
| Jun | 7 | Very high |
| Jul | 9 | Very high |
| Aug | 7 | High |
| Sep | 5 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is Castelnau-le-Lez?
Castelnau-le-Lez sits at 43.6°N, 3.9°E, 59 m above sea level, in France. The nearest listed city is Montpellier, 3.0 km away.
Topography around Castelnau-le-Lez
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Castelnau-le-Lez.
Within 3 km, the terrain around Castelnau-le-Lez has only modest variations in elevation — a maximum elevation change of 111 m around an average of 49 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 328 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,562 m.
The land around Castelnau-le-Lez is covered by artificial surfaces (44%) and trees (41%) within 3 km, trees (38%) within 16 km, and trees (41%) and water (26%) 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 Castelnau-le-Lez (43.636°, 3.9014°, elevation 59 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.