Melzo weather in May

In May, Melzo sees average daytime highs of 22°C and overnight lows near 13°C, with 100 mm of rain across 12.2 wet days and about 14.7 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 24°C by the end. The sky is clear or mostly clear about 32% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 hours at the start of May to 15 h 12 min by month's end. Set against the rest of the year, May is Melzo's 10th-clearest and 2nd-windiest month. For the whole year in context, see Melzo's year-round climate.

Daytime high
22°
5th warmest
Overnight low
13°
8th coldest
Rainfall
100 mm
12.2 wet days
Daylight
14 h 42 min
4:58 AM – 7:39 PM
Cloud cover
57%
10th clearest
Wind
6 km/h
2nd windiest
Solar energy
5.68 kWh/m²
Travel score
6.4
out of 10

Melzo 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 24°C by the end.

A typical May day in Melzo reaches about 22°C in the afternoon and slips back to 13°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 27°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12011
22011
32012
42112
52112
62112
72112
82112
92112
102113
112213
122213
132213
142213
152213
162213
172313
182314
192314
202314
212314
222314
232414
242414
252414
262415
272415
282415
292515
302515
312515

How May really feels in Melzo

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.

Melzo weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 556.61.58.91.1
Feb / 556.71.710.12.2
Mar14° / 698.50.911.64.4
Apr18° / 8911.80.113.25.6
May22° / 13°10012.2014.76.4
Jun27° / 17°9311.2015.46.4
Jul29° / 19°739.6015.15.7
Aug29° / 19°9110.4013.95.9
Sep24° / 15°1069.7012.36.9
Oct18° / 10°11210.3010.75.6
Nov12° / 12410.80.59.32.9
Dec / 717.71.78.61.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24357
34357
44357
54357
64357
74456
84456
94555
104654
114654
124753
134852
144852
154951
165050
175248
185347
195446
205545
215743
225743
235842
245842
255842
265941
275941
285941
295941
305941
315941

Chance of precipitation in May

Any precipitation

Melzo gets around 100 mm of rain over 12.2 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 40% and peaks near 44% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
144
244
344
444
544
644
743
843
943
1042
1142
1242
1341
1441
1540
1640
1739
1839
1938
2038
2137
2237
2336
2436
2536
2636
2736
2836
2937
3037
3138

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 70% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
190100
289110
388120
485141
584151
683161
782171
881181
980191
1079201
1178211
1277221
1376231
1475241
1574251
1673261
1772271
1870282
1969292
2067303
2166313
2264324
2362335
2460346
2558357
2656368
27533710
28513811
29493813
30463915
31443916

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 hours at the start of May to 15 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over May. Sunrise moves from 5:18 AM to 4:44 AM, and sunset from 7:21 PM to 7:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.05:187:21
214.15:177:22
314.15:157:23
414.25:147:24
514.25:127:26
614.35:117:27
714.35:107:28
814.45:087:29
914.45:077:31
1014.45:057:32
1114.55:047:33
1214.55:037:34
1314.65:017:36
1414.65:007:37
1514.74:597:38
1614.74:587:39
1714.74:577:40
1814.84:567:42
1914.84:557:43
2014.84:537:44
2114.94:527:45
2214.94:517:46
2314.94:517:47
2415.04:507:48
2515.04:497:49
2615.04:487:50
2715.14:477:51
2815.14:467:52
2915.14:467:53
3015.24:457:54
3115.24:447:55

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.68 kWh/m².

For context, solar energy here swings from a low near 1.23 kWh/m² to a high of 6.32 kWh/m² in July across the year — May's 5.68 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.2Bright
55.2Bright
65.3Bright
75.3Bright
85.3Bright
95.4Bright
105.4Bright
115.5Bright
125.5Bright
135.6Bright
145.6Bright
155.6Bright
165.7Bright
175.7Bright
185.8Bright
195.8Bright
205.8Bright
215.9Bright
225.9Bright
236.0Bright
246.0Bright
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in May

Is May a good time to visit Melzo?

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

6.4
Sightseeing
2nd-best month of the year
4.7
Beach & pool
5th-best month of the year

May is a reasonable time to visit Melzo for sightseeing.

What to pack for Melzo in May

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

In May, Melzo sees daytime highs around 22°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Melzo in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Melzo 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr6High
May7High
Jun7Very high
Jul8Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Melzo 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 Melzo is worst in March — around 23 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2122 µg/m³Sep 1315 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb19Moderate
Mar23Moderate
Apr22Moderate
May18Moderate
Jun20Moderate
Jul17Moderate
Aug16Moderate
Sep15Moderate
Oct16Moderate
Nov15Moderate
Dec17Moderate
Location & terrain

Where is Melzo?

Melzo sits at 45.5°N, 9.4°E, 118 m above sea level, in Italy. The nearest listed city is Gorgonzola, 4.0 km away.

Topography around Melzo

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Melzo.

Within 3 km, the terrain around Melzo has only modest variations in elevation — a maximum elevation change of 36 m around an average of 117 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 181 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,972 m.

The land around Melzo is covered by cropland (38%), artificial surfaces (26%) and grassland (20%) within 3 km, cropland (35%), artificial surfaces (26%) and grassland (22%) within 16 km, and cropland (37%) and trees (35%) within 80 km.

3 km
36 m
16 km
181 m
80 km
2,972 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Gorgonzola 4.0 km · Pioltello 7.0 km · Cernusco sul Naviglio 7.0 km · Cassano d'Adda 8.0 km · Carugate 8.0 km · Segrate 10 km · Vimodrone 11 km · Brugherio 11 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 Melzo (45.4981°, 9.4204°, elevation 118 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. 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).