Senec in Winter
In winter (December, January and February), Senec sees average daytime highs around 4°C and overnight lows near -2°C, with 110 mm of precipitation over about 25 wet days across the season. It is the coldest season of the year and the driest season of the year.
Over the season highs climb from about 5°C in early December to 7°C by late February. The sky is clear or mostly clear about 19% of the time across winter, and the air most often feels dry.
Winter is Senec's weakest season of the year to visit on our travel score. For the whole year in context, see Senec's year-round climate.
- Avg daytime high
- 4°C
- coldest season of the year
- Avg overnight low
- -2°C
- Precipitation
- 110 mm
- 25 wet days
- Avg wind
- 12 km/h
- Travel score
- 0.1
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Senec in Winter
Over the season highs climb from about 5°C in early December to 7°C by late February.
A typical winter day in Senec reaches about 4°C and drops to -2°C overnight. The warmest of the three months is February, the coolest January.
How winter really feels in Senec
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 90 that feel at or below 0°C.
The story in winter is cold — wind chill drags the overnight "feels like" below the raw low.
Senec weather by month
How the three winter months (December, January and February) 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 | 3° / -3° | 36 | 8 | 3.9 | 8.6 | 0.0 |
| Feb | 5° / -1° | 33 | 7.9 | 3.2 | 9.9 | 0.3 |
| Mar | 11° / 2° | 40 | 8.4 | 1.6 | 11.6 | 2.6 |
| Apr | 17° / 6° | 42 | 8 | 0.3 | 13.4 | 5.4 |
| May | 21° / 11° | 67 | 10.7 | 0 | 14.9 | 6.4 |
| Jun | 25° / 14° | 72 | 10.8 | 0 | 15.8 | 6.7 |
| Jul | 27° / 16° | 74 | 11 | 0 | 15.5 | 6.4 |
| Aug | 27° / 16° | 64 | 9.4 | 0 | 14.1 | 6.7 |
| Sep | 22° / 12° | 64 | 8.6 | 0 | 12.4 | 6.8 |
| Oct | 15° / 7° | 48 | 8.6 | 0.1 | 10.6 | 4.8 |
| Nov | 9° / 3° | 47 | 8.8 | 1.6 | 9 | 1.7 |
| Dec | 3° / -1° | 41 | 8.7 | 2.9 | 8.2 | 0.0 |
Cloud cover in Winter
The sky is clear or mostly clear about 19% of the time across winter.
Chance of precipitation in Winter
Senec gets around 110 mm of rain and snow over 25 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 12 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 8 h 24 min in early December to 10 h 36 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 1.3 kWh/m².
Is winter a good time to visit Senec?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a weaker month for outdoor sightseeing in Senec.
What to pack for Senec in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Senec sees daytime highs around 4°C and nights near -2°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 25 days see rain.
UV index in Senec in Winter
Clear-sky midday UV across winter averages around 1. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Senec peaks around July 11 at about 8 (very 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 | 6 | 6 | 7 | 8 | 6 | 4 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | High | High | Very high | Very high | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 6 | High |
| Jun | 7 | Very high |
| Jul | 8 | Very high |
| Aug | 6 | High |
| Sep | 4 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Air quality in Senec in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Senec is worst in June — around 17 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 | 13 | 16 | 16 | 16 | 17 | 15 | 15 | 13 | 12 | 12 | 11 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 13 | Moderate |
| Feb | 13 | Moderate |
| Mar | 16 | Moderate |
| Apr | 16 | Moderate |
| May | 16 | Moderate |
| Jun | 17 | Moderate |
| Jul | 15 | Moderate |
| Aug | 15 | Moderate |
| Sep | 13 | Moderate |
| Oct | 12 | Moderate |
| Nov | 12 | Good |
| Dec | 11 | Good |
Where is Senec?
Senec sits at 48.2°N, 17.4°E, 127 m above sea level, in Slovakia. The nearest listed city is Pezinok, 13 km away.
Topography around Senec
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Senec.
Within 3 km, the terrain around Senec has only modest variations in elevation — a maximum elevation change of 50 m around an average of 129 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 289 m; within 80 km, large variations in elevation — a maximum elevation change of 951 m.
The land around Senec is covered by cropland (56%) and artificial surfaces (20%) within 3 km, cropland (68%) within 16 km, and cropland (57%) and trees (25%) within 80 km.
Slovakia travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / E / F
- 230 V · 50 Hz
- Prices
- ≈ 58% of US
- price level, 2025
- GDP per capita
- $28,544
- 2025
- Happiness
- 6.3 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 1.1
- per 100k, 2023
- Road deaths
- 6.1
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very high
- EF EPI 606
- 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 Senec (48.2195°, 17.4004°, elevation 127 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.