Guidonia Montecelio in Spring
In spring (March, April and May), Guidonia Montecelio sees average daytime highs around 18°C and overnight lows near 8°C, with 255 mm of precipitation over about 33 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 13°C in early March to 24°C by late May. The sky is clear or mostly clear about 38% of the time across spring, and the air most often feels dry.
Spring is Guidonia Montecelio's 3rd-best season to visit on our travel score. For the whole year in context, see Guidonia Montecelio's year-round climate.
- Avg daytime high
- 18°C
- 3rd-warmest season
- Avg overnight low
- 8°C
- Precipitation
- 255 mm
- 33 wet days
- Avg wind
- 7 km/h
- Travel score
- 5.6
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Guidonia Montecelio in Spring
Over the season highs climb from about 13°C in early March to 24°C by late May.
A typical spring day in Guidonia Montecelio reaches about 18°C and drops to 8°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Guidonia Montecelio
Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
spring sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Guidonia Montecelio weather by month
How the three spring months (March, April and May) 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 | 10° / 2° | 69 | 8.6 | 0.6 | 9.3 | 2.6 |
| Feb | 12° / 2° | 76 | 9.3 | 0.9 | 10.3 | 3.0 |
| Mar | 15° / 5° | 84 | 9.9 | 0.5 | 11.7 | 4.5 |
| Apr | 18° / 7° | 94 | 12.2 | 0.1 | 13.1 | 5.5 |
| May | 22° / 11° | 77 | 10.4 | 0 | 14.3 | 6.8 |
| Jun | 27° / 15° | 46 | 7.3 | 0 | 15 | 7.1 |
| Jul | 30° / 18° | 28 | 4.8 | 0 | 14.7 | 6.1 |
| Aug | 30° / 18° | 28 | 5.5 | 0 | 13.7 | 5.8 |
| Sep | 25° / 15° | 85 | 9.4 | 0 | 12.3 | 7.1 |
| Oct | 21° / 11° | 113 | 10.4 | 0 | 10.9 | 6.5 |
| Nov | 15° / 7° | 132 | 12.4 | 0 | 9.6 | 4.5 |
| Dec | 11° / 3° | 104 | 10.4 | 0.3 | 9 | 2.9 |
Cloud cover in Spring
The sky is clear or mostly clear about 38% of the time across spring.
Chance of precipitation in Spring
Guidonia Montecelio gets around 255 mm of rain and snow over 33 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 7 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 10 h 54 min in early March to 14 h 48 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.2 kWh/m².
Is spring a good time to visit Guidonia Montecelio?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Guidonia Montecelio for sightseeing.
What to pack for Guidonia Montecelio in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Guidonia Montecelio sees daytime highs around 18°C and nights near 8°C. Pack sun protection. Worth having: light clothes, a warm layer and rain gear. About 33 days see rain.
Sea temperature near Guidonia Montecelio in Spring
The nearest coast averages about 16°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 50 km away) is warmest in August at about 26°C and coldest in February near 14°C.
It's comfortable for a long swim from May 31 to Nov 1 — about 5.1 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 15 | 14 | 14 | 15 | 18 | 22 | 25 | 26 | 24 | 21 | 19 | 16 |
| Comfort | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Warm | Warm | Refreshing | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 15 | Bracing |
| Feb | 14 | Bracing |
| Mar | 14 | Bracing |
| Apr | 15 | Cool |
| May | 18 | Cool |
| Jun | 22 | Refreshing |
| Jul | 25 | Warm |
| Aug | 26 | Warm |
| Sep | 24 | Refreshing |
| Oct | 21 | Refreshing |
| Nov | 19 | Cool |
| Dec | 16 | Cool |
UV index in Guidonia Montecelio in Spring
Clear-sky midday UV across spring averages around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Guidonia Montecelio peaks around July 15 at about 10 (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 | 5 | 4 | 7 | 9 | 10 | 8 | 6 | 3 | 2 | 1 |
| Level | Low | Moderate | High | Moderate | High | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | High |
| Apr | 4 | Moderate |
| May | 7 | High |
| Jun | 9 | Very high |
| Jul | 10 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Air quality in Guidonia Montecelio in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Guidonia Montecelio is worst in April — 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) | 15 | 15 | 17 | 17 | 15 | 14 | 12 | 13 | 11 | 12 | 12 | 13 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Moderate | Good | Moderate | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 15 | Moderate |
| Feb | 15 | Moderate |
| Mar | 17 | Moderate |
| Apr | 17 | Moderate |
| May | 15 | Moderate |
| Jun | 14 | Moderate |
| Jul | 12 | Good |
| Aug | 13 | Moderate |
| Sep | 11 | Good |
| Oct | 12 | Moderate |
| Nov | 12 | Good |
| Dec | 13 | Moderate |
Where is Guidonia Montecelio?
Guidonia Montecelio sits at 42.0°N, 12.7°E, 92 m above sea level, in Italy. The nearest listed city is Guidonia, 0.0 km away.
Topography around Guidonia Montecelio
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Guidonia Montecelio.
Within 3 km, the terrain around Guidonia Montecelio has significant variations in elevation — a maximum elevation change of 308 m around an average of 105 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,260 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,441 m.
The land around Guidonia Montecelio is covered by cropland (31%) and trees (26%) within 3 km, trees (53%) and cropland (21%) within 16 km, and trees (51%) 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 Guidonia Montecelio (41.9936°, 12.7224°, elevation 92 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.