Trezzano sul Naviglio in Winter
In winter (December, January and February), Trezzano sul Naviglio sees average daytime highs around 8°C and overnight lows near 1°C, with 206 mm of precipitation over about 21 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 9°C in early December to 11°C by late February. The sky is clear or mostly clear about 41% of the time across winter, and the air most often feels dry.
Winter is Trezzano sul Naviglio's weakest season of the year to visit on our travel score. For the whole year in context, see Trezzano sul Naviglio's year-round climate.
- Avg daytime high
- 8°C
- coldest season of the year
- Avg overnight low
- 1°C
- Precipitation
- 206 mm
- 21 wet days
- Avg wind
- 6 km/h
- Travel score
- 1.5
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Trezzano sul Naviglio in Winter
Over the season highs climb from about 9°C in early December to 11°C by late February.
A typical winter day in Trezzano sul Naviglio reaches about 8°C and drops to 1°C overnight. The warmest of the three months is February, the coolest January.
How winter really feels in Trezzano sul Naviglio
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 72 that feel at or below 0°C.
The story in winter is cold — wind chill drags the overnight "feels like" below the raw low.
Trezzano sul Naviglio 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 | 7° / 1° | 64 | 7 | 1.8 | 8.9 | 1.1 |
| Feb | 10° / 2° | 64 | 6.8 | 1.6 | 10.1 | 2.2 |
| Mar | 14° / 5° | 81 | 8.3 | 0.6 | 11.6 | 4.6 |
| Apr | 18° / 9° | 115 | 11.5 | 0.1 | 13.2 | 5.6 |
| May | 23° / 14° | 128 | 12.3 | 0 | 14.7 | 6.4 |
| Jun | 27° / 18° | 125 | 11.5 | 0 | 15.4 | 6.3 |
| Jul | 29° / 20° | 97 | 10.2 | 0 | 15.1 | 5.6 |
| Aug | 28° / 19° | 136 | 11.7 | 0 | 13.9 | 5.8 |
| Sep | 23° / 15° | 140 | 10.1 | 0 | 12.3 | 6.9 |
| Oct | 18° / 11° | 141 | 10.6 | 0 | 10.7 | 5.5 |
| Nov | 12° / 6° | 163 | 10.8 | 0.4 | 9.3 | 3.0 |
| Dec | 8° / 1° | 78 | 7.5 | 1.7 | 8.6 | 1.2 |
Cloud cover in Winter
The sky is clear or mostly clear about 41% of the time across winter.
Chance of precipitation in Winter
Trezzano sul Naviglio gets around 206 mm of rain and snow over 21 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 6 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 8 h 48 min in early December to 10 h 42 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 1.7 kWh/m².
Is winter a good time to visit Trezzano sul Naviglio?
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 Trezzano sul Naviglio.
What to pack for Trezzano sul Naviglio in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Trezzano sul Naviglio sees daytime highs around 8°C and nights near 1°C. Pack a warm layer. Worth having: a heavy coat. About 21 days see rain.
UV index in Trezzano sul Naviglio 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 Trezzano sul Naviglio peaks around July 15 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 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 6 | 7 | 7 | 8 | 7 | 5 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 7 | High |
| Jun | 7 | Very high |
| Jul | 8 | Very high |
| Aug | 7 | High |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Trezzano sul Naviglio 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 Trezzano sul Naviglio is worst in March — around 21 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) | 18 | 17 | 21 | 20 | 17 | 20 | 17 | 15 | 14 | 14 | 14 | 15 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 17 | Moderate |
| Mar | 21 | Moderate |
| Apr | 20 | Moderate |
| May | 17 | Moderate |
| Jun | 20 | Moderate |
| Jul | 17 | Moderate |
| Aug | 15 | Moderate |
| Sep | 14 | Moderate |
| Oct | 14 | Moderate |
| Nov | 14 | Moderate |
| Dec | 15 | Moderate |
Where is Trezzano sul Naviglio?
Trezzano sul Naviglio sits at 45.4°N, 9.1°E, 116 m above sea level, in Italy. The nearest listed city is Cesano Boscone, 3.0 km away.
Topography around Trezzano sul Naviglio
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Trezzano sul Naviglio.
Within 3 km, the terrain around Trezzano sul Naviglio has only modest variations in elevation — a maximum elevation change of 23 m around an average of 116 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 117 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,533 m.
The land around Trezzano sul Naviglio is covered by cropland (40%) and artificial surfaces (29%) within 3 km, cropland (41%) and artificial surfaces (29%) within 16 km, and cropland (40%) and trees (36%) within 80 km.
Italy travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F / L
- 230 V · 50 Hz
- Prices
- ≈ 69% of US
- price level, 2025
- GDP per capita
- $43,309
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 97%
- of population, 2024
- Homicide rate
- 0.6
- per 100k, 2023
- Road deaths
- 5.3
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 513
- 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 Trezzano sul Naviglio (45.4221°, 9.0634°, elevation 116 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.