Illzach in Fall
In fall (September, October and November), Illzach sees average daytime highs around 14°C and overnight lows near 7°C, with 237 mm of precipitation over about 35 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 22°C in early September to 6°C by late November. The sky is clear or mostly clear about 20% of the time across fall, and the air most often feels dry.
Fall is Illzach's 3rd-best season to visit on our travel score. For the whole year in context, see Illzach's year-round climate.
- Avg daytime high
- 14°C
- 3rd-warmest season
- Avg overnight low
- 7°C
- Precipitation
- 237 mm
- 35 wet days
- Avg wind
- 7 km/h
- Travel score
- 3.8
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Illzach in Fall
Over the season highs ease from about 22°C in early September to 6°C by late November.
A typical fall day in Illzach reaches about 14°C and drops to 7°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Illzach
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 13 that feel at or below 0°C.
The story in fall is cold — wind chill drags the overnight "feels like" below the raw low.
Illzach 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 | 5° / -1° | 75 | 12.5 | 3.6 | 8.6 | 0.0 |
| Feb | 6° / -0° | 65 | 10.6 | 4.1 | 9.9 | 0.5 |
| Mar | 11° / 2° | 71 | 12 | 1.9 | 11.6 | 2.5 |
| Apr | 15° / 5° | 68 | 11.8 | 0.4 | 13.4 | 4.2 |
| May | 19° / 9° | 93 | 14 | 0 | 14.9 | 5.4 |
| Jun | 23° / 13° | 80 | 13.3 | 0 | 15.7 | 6.2 |
| Jul | 25° / 15° | 81 | 13 | 0 | 15.4 | 6.5 |
| Aug | 24° / 14° | 80 | 12 | 0 | 14.1 | 6.7 |
| Sep | 20° / 11° | 74 | 11 | 0 | 12.4 | 6.0 |
| Oct | 14° / 7° | 83 | 12.1 | 0.2 | 10.6 | 4.0 |
| Nov | 8° / 3° | 81 | 11.8 | 1.4 | 9.1 | 1.4 |
| Dec | 5° / 0° | 92 | 13.2 | 3.8 | 8.3 | 0.1 |
Cloud cover in Fall
The sky is clear or mostly clear about 20% of the time across fall.
Chance of precipitation in Fall
Illzach gets around 237 mm of rain and snow over 35 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 7 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 13 h 12 min in early September to 8 h 30 min 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 2.4 kWh/m².
Is fall a good time to visit Illzach?
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 weaker month for outdoor sightseeing in Illzach.
What to pack for Illzach in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Illzach sees daytime highs around 14°C and nights near 7°C. Pack a warm layer. Worth having: rain gear. About 35 days see rain.
UV index in Illzach in Fall
Clear-sky midday UV across fall averages around 3. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Illzach peaks around July 14 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 5 | 7 | 7 | 8 | 6 | 4 | 3 | 2 | 1 |
| Level | Low | Low | Moderate | Moderate | High | Very high | Very high | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 4 | Moderate |
| Apr | 5 | Moderate |
| May | 7 | High |
| Jun | 7 | Very high |
| Jul | 8 | Very high |
| Aug | 6 | High |
| Sep | 4 | Moderate |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Illzach in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Illzach is worst in April — around 15 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (November, 9 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 11 | 11 | 15 | 15 | 13 | 15 | 12 | 12 | 12 | 10 | 9 | 10 |
| Level | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 11 | Good |
| Mar | 15 | Moderate |
| Apr | 15 | Moderate |
| May | 13 | Moderate |
| Jun | 15 | Moderate |
| Jul | 12 | Good |
| Aug | 12 | Moderate |
| Sep | 12 | Good |
| Oct | 10 | Good |
| Nov | 9 | Good |
| Dec | 10 | Good |
Where is Illzach?
Illzach sits at 47.8°N, 7.4°E, 232 m above sea level, in France. The nearest listed city is Mulhouse, 3.0 km away.
Topography around Illzach
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Illzach.
Within 3 km, the terrain around Illzach has only modest variations in elevation — a maximum elevation change of 71 m around an average of 236 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 480 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,439 m.
The land around Illzach is covered by artificial surfaces (56%) and trees (22%) within 3 km, trees (41%) and cropland (35%) within 16 km, and trees (59%) and grassland (21%) 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 Illzach (47.7742°, 7.3518°, elevation 232 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.