Avellino weather in May

In May, Avellino sees average daytime highs of 21°C and overnight lows near 12°C, with 75 mm of rain across 9.9 wet days and about 14.3 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 22°C by the end. The sky is clear or mostly clear about 38% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of May to 14 h 42 min by month's end. Set against the rest of the year, May is Avellino's 5th-clearest and 8th-windiest month. For the whole year in context, see Avellino's year-round climate.

Daytime high
21°
5th warmest
Overnight low
12°
8th coldest
Rainfall
75 mm
9.9 wet days
Daylight
14 h 18 min
4:49 AM – 7:05 PM
Cloud cover
51%
5th clearest
Wind
7 km/h
8th windiest
Solar energy
6.15 kWh/m²
Travel score
6.6
out of 10

Avellino is chief town of the homonym municipality.

Air quality
Moderate
PM2.5 14.6 µg/m³ · 2019

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 19°C in the first days to 22°C by the end.

A typical May day in Avellino reaches about 21°C in the afternoon and slips back to 12°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 25°C. Set against its neighbours, May runs about 4°C warmer than April and about 5°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
11910
21910
31910
41911
51911
62011
72011
82011
92011
102011
112011
122011
132011
142112
152112
162112
172112
182112
192112
202112
212112
222212
232213
242213
252213
262213
272213
282213
292213
302313
312314

Avellino weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan10° / 10210.70.89.42.1
Feb10° / 9611.21.110.42.3
Mar13° / 104110.511.73.7
Apr16° / 10112.50.213.14.9
May21° / 12°759.9014.36.6
Jun25° / 16°416.8014.97.6
Jul28° / 18°244.6014.67.4
Aug29° / 19°285013.66.9
Sep24° / 15°869.6012.37.1
Oct20° / 12°12810.3010.96.4
Nov15° / 15512.90.29.74.2
Dec11° / 12912.10.69.12.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 21% of May, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25149
35248
45248
55347
65446
75545
85644
95644
105644
115743
125743
135842
145941
155941
166040
176040
186040
196238
206238
216238
226436
236436
246535
256634
266634
276634
286634
296733
306733
316733

Chance of precipitation in May

Any precipitation

Avellino gets around 75 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 33% and peaks near 42% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
142
242
341
440
539
638
738
837
936
1035
1134
1233
1332
1432
1531
1631
1731
1830
1930
2030
2130
2229
2329
2429
2529
2629
2729
2829
2929
3029
3129

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 74% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19460
29370
39280
490100
589110
687130
786140
885150
983170
1082180
1181190
1280200
1379210
1477221
1576231
1675241
1774251
1873261
1971272
2070282
2169292
2267303
2365323
2464333
2562344
2660364
2758375
2855396
2954406
3050428
3148439

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 6 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
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over May. Sunrise moves from 5:06 AM to 4:38 AM, and sunset from 6:50 PM to 7:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:066:50
213.85:056:51
313.85:046:52
413.85:026:53
513.95:016:54
613.95:006:55
714.04:596:56
814.04:576:57
914.04:566:58
1014.14:556:59
1114.14:547:00
1214.14:537:01
1314.24:527:02
1414.24:517:03
1514.24:507:04
1614.34:497:05
1714.34:487:06
1814.34:477:07
1914.44:467:08
2014.44:457:09
2114.44:447:10
2214.54:437:11
2314.54:437:12
2414.54:427:13
2514.54:417:14
2614.64:407:15
2714.64:407:16
2814.64:397:16
2914.64:397:17
3014.74:387:18
3114.74:387:19

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.15 kWh/m².

For context, solar energy here swings from a low near 1.59 kWh/m² to a high of 6.94 kWh/m² in July across the year — May's 6.15 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.8Bright
55.8Bright
65.8Bright
75.9Bright
85.9Bright
95.9Bright
106.0Bright
116.0Bright
126.0Intense
136.0Intense
146.1Intense
156.1Intense
166.1Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.4Intense
266.4Intense
276.4Intense
286.5Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in May

Is May a good time to visit Avellino?

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

6.6
Sightseeing
5th-best month of the year
3.9
Beach & pool
5th-best month of the year

May is a reasonable time to visit Avellino for sightseeing.

What to pack for Avellino in May

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

In May, Avellino sees daytime highs around 21°C and nights near 12°C. Pack sun protection. Worth having: rain gear. About 10 days see rain.

sun protectionrain gear

Sea temperature near Avellino in May

The nearest coast averages about 19°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 33 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 27 to Nov 8 — about 5.5 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb14Bracing
Mar14Bracing
Apr16Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep24Warm
Oct22Refreshing
Nov19Cool
Dec17Cool

UV index in Avellino 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 Avellino peaks around July 16 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highHighModerateLowJul 16UV 10Dec 21UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr4Moderate
May7High
Jun9Very high
Jul10Very high
Aug9Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec1Low

Air quality in Avellino 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 Avellino is worst in April — around 18 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Avellino's WHO annual average of 14.6 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1218 µg/m³Sep 1813 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb16Moderate
Mar17Moderate
Apr18Moderate
May15Moderate
Jun14Moderate
Jul13Moderate
Aug14Moderate
Sep13Moderate
Oct13Moderate
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Avellino?

Avellino sits at 40.9°N, 14.8°E, 348 m above sea level, in Italy. The nearest listed city is Sarno, 19 km away.

Topography around Avellino

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

Within 3 km, the terrain around Avellino has significant variations in elevation — a maximum elevation change of 309 m around an average of 389 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,697 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,032 m.

The land around Avellino is covered by trees (74%) and artificial surfaces (24%) within 3 km, trees (87%) within 16 km, and trees (44%), cropland (23%) and water (22%) within 80 km.

3 km
309 m
16 km
1,697 m
80 km
2,032 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Sarno 19 km · Nocera Superiore 22 km · Nola 22 km · Nocera Inferiore 22 km · Benevento 24 km · Pagani 24 km · Poggiomarino 25 km · Cava Dè Tirreni 25 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 Avellino (40.9149°, 14.791°, elevation 348 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).