Slaný in Fall
In fall (September, October and November), Slaný sees average daytime highs around 13°C and overnight lows near 6°C, with 130 mm of precipitation over about 27 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 21°C in early September to 4°C by late November. The sky is clear or mostly clear about 18% of the time across fall, and the air most often feels dry.
Fall is Slaný's 3rd-best season to visit on our travel score. For the whole year in context, see Slaný's year-round climate.
- Avg daytime high
- 13°C
- 3rd-warmest season
- Avg overnight low
- 6°C
- Precipitation
- 130 mm
- 27 wet days
- Avg wind
- 10 km/h
- Travel score
- 3.5
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Slaný in Fall
Over the season highs ease from about 21°C in early September to 4°C by late November.
A typical fall day in Slaný reaches about 13°C and drops to 6°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Slaný
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 23 that feel at or below 0°C.
The story in fall is cold — wind chill drags the overnight "feels like" below the raw low.
Slaný 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 | 2° / -2° | 32 | 9.1 | 4.3 | 8.3 | 0.0 |
| Feb | 4° / -2° | 26 | 7.5 | 3.1 | 9.7 | 0.1 |
| Mar | 9° / 1° | 38 | 9.8 | 2.3 | 11.5 | 1.6 |
| Apr | 14° / 4° | 35 | 8.8 | 0.4 | 13.5 | 4.2 |
| May | 19° / 9° | 59 | 11.9 | 0 | 15.2 | 5.7 |
| Jun | 22° / 12° | 70 | 11.8 | 0 | 16.1 | 6.3 |
| Jul | 25° / 14° | 76 | 12 | 0 | 15.7 | 6.6 |
| Aug | 24° / 14° | 67 | 10.5 | 0 | 14.3 | 6.8 |
| Sep | 19° / 10° | 50 | 9 | 0 | 12.4 | 6.1 |
| Oct | 13° / 6° | 42 | 9.2 | 0.1 | 10.5 | 3.6 |
| Nov | 7° / 2° | 38 | 8.3 | 1.2 | 8.8 | 0.9 |
| Dec | 3° / -1° | 37 | 8.8 | 3.9 | 7.9 | 0.0 |
Cloud cover in Fall
The sky is clear or mostly clear about 18% of the time across fall.
Chance of precipitation in Fall
Slaný gets around 130 mm of rain and snow over 27 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 10 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 13 h 18 min in early September to 8 h 12 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 2.0 kWh/m².
Is fall a good time to visit Slaný?
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 Slaný.
What to pack for Slaný in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Slaný sees daytime highs around 13°C and nights near 6°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 27 days see rain.
UV index in Slaný 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 Slaný peaks around June 21 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. 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 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 4 | 6 | 7 | 7 | 6 | 4 | 2 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | High | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 4 | Moderate |
| Apr | 4 | Moderate |
| May | 6 | High |
| Jun | 7 | High |
| Jul | 7 | High |
| Aug | 6 | High |
| Sep | 4 | Moderate |
| Oct | 2 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Air quality in Slaný 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 Slaný is worst in April — around 22 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) | 17 | 18 | 21 | 22 | 19 | 21 | 18 | 19 | 19 | 17 | 16 | 15 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 17 | Moderate |
| Feb | 18 | Moderate |
| Mar | 21 | Moderate |
| Apr | 22 | Moderate |
| May | 19 | Moderate |
| Jun | 21 | Moderate |
| Jul | 18 | Moderate |
| Aug | 19 | Moderate |
| Sep | 19 | Moderate |
| Oct | 17 | Moderate |
| Nov | 16 | Moderate |
| Dec | 15 | Moderate |
Where is Slaný?
Slaný sits at 50.2°N, 14.1°E, 282 m above sea level, in Czechia. The nearest listed city is Kladno, 9.0 km away.
Topography around Slaný
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Slaný.
Within 3 km, the terrain around Slaný has only modest variations in elevation — a maximum elevation change of 104 m around an average of 289 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 341 m; within 80 km, large variations in elevation — a maximum elevation change of 1,076 m.
The land around Slaný is covered by cropland (55%) within 3 km, cropland (63%) and trees (23%) within 16 km, and trees (45%) and cropland (35%) within 80 km.
Czechia travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / E
- 230 V · 50 Hz
- Prices
- ≈ 59% of US
- price level, 2025
- GDP per capita
- $35,917
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 0.8
- per 100k, 2023
- Road deaths
- 5.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- High
- EF EPI 582
- 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 Slaný (50.2305°, 14.0869°, elevation 282 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.