Colle di Val d'Elsa weather in May

In May, Colle di Val d'Elsa sees average daytime highs of 22°C and overnight lows near 11°C, with 72 mm of rain across 9.9 wet days and about 14.5 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 23°C by the end. The sky is clear or mostly clear about 36% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 54 min at the start of May to 15 hours by month's end. Set against the rest of the year, May is Colle di Val d'Elsa's 5th-clearest and 8th-windiest month. For the whole year in context, see Colle di Val d'Elsa's year-round climate.

Daytime high
22°
5th warmest
Overnight low
11°
8th coldest
Rainfall
72 mm
9.9 wet days
Daylight
14 h 30 min
4:57 AM – 7:27 PM
Cloud cover
53%
5th clearest
Wind
7 km/h
8th windiest
Solar energy
5.97 kWh/m²
Travel score
6.7
out of 10

Colle di Val d'Elsa is chief town of the homonym municipality.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 20°C in the first days to 23°C by the end.

A typical May day in Colle di Val d'Elsa reaches about 22°C in the afternoon and slips back to 11°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 26°C. Set against its neighbours, May runs about 4°C warmer than April and about 4°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
11910
22010
32010
42010
52010
62010
72010
82010
92111
102111
112111
122111
132111
142111
152111
162111
172211
182211
192212
202212
212212
222212
232212
242312
252312
262312
272313
282313
292313
302413
312413

How May really feels in Colle di Val d'Elsa

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Colle di Val d'Elsa weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 608.70.99.11.8
Feb10° / 688.81.110.22.5
Mar14° / 689.30.411.64.2
Apr17° / 7911.4013.25.4
May22° / 11°729.9014.56.7
Jun26° / 15°497.3015.27.4
Jul29° / 18°324.4014.96.7
Aug29° / 18°405.6013.86.5
Sep25° / 14°948.9012.37.1
Oct19° / 10°11211010.86.1
Nov14° / 12312.20.19.53.7
Dec10° / 8510.60.48.82.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 20% of May, with mostly cloudy or overcast conditions the remaining 44%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34852
44852
54852
65050
75050
85149
95149
105248
115248
125248
135347
145446
155446
165545
175644
185743
195842
205842
216040
226139
236139
246238
256337
266337
276436
286436
296436
306436
316535

Chance of precipitation in May

Any precipitation

Colle di Val d'Elsa gets around 72 mm of rain over 9.9 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 32% and peaks near 41% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
141
241
341
441
540
640
739
838
937
1036
1136
1235
1334
1433
1532
1632
1731
1830
1929
2029
2128
2227
2327
2427
2526
2626
2726
2826
2926
3026
3126

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the dry band about 72% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19190
289110
388120
487130
585150
684160
783170
882180
981190
1080200
1179210
1278220
1377230
1476240
1575250
1674251
1773261
1872271
1971281
2070282
2169292
2268302
2366313
2464333
2562344
2659365
2758375
2855396
2952408
3049429
31464311

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 54 min at the start of May to 15 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over May. Sunrise moves from 5:16 AM to 4:44 AM, and sunset from 7:09 PM to 7:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:167:09
213.95:157:11
314.05:137:12
414.05:127:13
514.15:107:14
614.15:097:15
714.15:087:16
814.25:067:18
914.25:057:19
1014.35:047:20
1114.35:037:21
1214.35:017:22
1314.45:007:23
1414.44:597:24
1514.54:587:25
1614.54:577:27
1714.54:567:28
1814.64:557:29
1914.64:547:30
2014.64:537:31
2114.74:527:32
2214.74:517:33
2314.74:507:34
2414.84:497:35
2514.84:487:36
2614.84:487:37
2714.84:477:38
2814.94:467:39
2914.94:467:40
3014.94:457:41
3115.04:447:41

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.97 kWh/m².

For context, solar energy here swings from a low near 1.37 kWh/m² to a high of 6.86 kWh/m² in July across the year — May's 5.97 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.5Bright
45.5Bright
55.5Bright
65.6Bright
75.6Bright
85.7Bright
95.7Bright
105.7Bright
115.8Bright
125.8Bright
135.8Bright
145.9Bright
155.9Bright
166.0Bright
176.0Bright
186.0Intense
196.1Intense
206.1Intense
216.1Intense
226.2Intense
236.2Intense
246.2Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
316.4Intense
Planning a trip in May

Is May a good time to visit Colle di Val d'Elsa?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.7
Sightseeing
3rd-best month of the year
4.4
Beach & pool
5th-best month of the year

May is a reasonable time to visit Colle di Val d'Elsa for sightseeing.

What to pack for Colle di Val d'Elsa in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Colle di Val d'Elsa sees daytime highs around 22°C and nights near 11°C. Worth packing: rain gear and sun protection. About 10 days see rain.

rain gearsun protection

Sea temperature near Colle di Val d'Elsa in May

The nearest coast averages about 18°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 61 km away) is warmest in August at about 25°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 3 to Oct 22 — about 4.7 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun22Refreshing
Jul24Warm
Aug25Warm
Sep23Refreshing
Oct21Refreshing
Nov18Cool
Dec16Cool

UV index in Colle di Val d'Elsa in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Colle di Val d'Elsa peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. 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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 14UV 9Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5Moderate
Apr6High
May6High
Jun8Very high
Jul9Very high
Aug7Very high
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Colle di Val d'Elsa in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Colle di Val d'Elsa is worst in March — around 17 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateMar 2016 µg/m³Nov 1712 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb14Moderate
Mar17Moderate
Apr16Moderate
May15Moderate
Jun14Moderate
Jul12Good
Aug13Moderate
Sep12Moderate
Oct13Moderate
Nov12Good
Dec12Moderate
Location & terrain

Where is Colle di Val d'Elsa?

Colle di Val d'Elsa sits at 43.4°N, 11.1°E, 141 m above sea level, in Italy. The nearest listed city is Poggibonsi, 6.0 km away.

Topography around Colle di Val d'Elsa

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Colle di Val d'Elsa.

Within 3 km, the terrain around Colle di Val d'Elsa has only modest variations in elevation — a maximum elevation change of 149 m around an average of 197 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 606 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,862 m.

The land around Colle di Val d'Elsa is covered by trees (46%) and grassland (23%) within 3 km, trees (65%) within 16 km, and trees (60%) within 80 km.

3 km
149 m
16 km
606 m
80 km
1,862 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Poggibonsi 6.0 km · Siena 20 km · Empoli 36 km · San Giovanni Valdarno 36 km · San Miniato 36 km · Scandicci 37 km · Montevarchi 38 km · San Miniato Basso 38 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
Christian 81%unaffiliated 13%Muslim 5%other 1%

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 Colle di Val d'Elsa (43.4211°, 11.1274°, elevation 141 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).