San Sebastiano weather in May

In May, San Sebastiano sees average daytime highs of 17°C and overnight lows near 9°C, with 138 mm of precipitation across 20.1 wet days and about 14.7 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 16°C in the first days to 19°C by the end. The sky is clear or mostly clear about 19% 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 San Sebastiano's 12th-clearest and 2nd-windiest month. For the whole year in context, see San Sebastiano's year-round climate.

Daytime high
17°
5th warmest
Overnight low
8th coldest
Precipitation
138 mm
20.1 wet days
Daylight
14 h 42 min
4:54 AM – 7:36 PM
Cloud cover
64%
12th clearest
Wind
4 km/h
2nd windiest
Solar energy
5.29 kWh/m²
Travel score
4.4
out of 10

San Sebastiano is settlement in Lumezzane, Italy.

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 16°C in the first days to 19°C by the end.

A typical May day in San Sebastiano reaches about 17°C in the afternoon and slips back to 9°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 22°C. Set against its neighbours, May runs about 4°C warmer than April and about 4°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1157
2167
3167
4168
5168
6168
7168
8168
9178
10178
11179
12179
13179
14179
15179
16179
17189
18189
191810
201810
211810
221810
231810
241910
251910
261911
271911
281911
291911
301911
311911

How May really feels in San Sebastiano

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.

San Sebastiano weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°557.15.58.90.0
Feb / -2°607.76.210.10.3
Mar10° / 8110.75.311.62.1
Apr13° / 11816.63.513.33.1
May17° / 13820.10.314.74.4
Jun21° / 13°14118.7015.45.2
Jul23° / 15°12617.8015.15.9
Aug23° / 15°12616.7013.96.0
Sep19° / 12°12914.20.112.35.5
Oct14° / 13912.30.710.73.9
Nov / 13711.53.49.31.6
Dec / -1°798.35.58.60.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 24% of May, with mostly cloudy or overcast conditions the remaining 57%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23565
33565
43565
53664
63664
73664
83763
93763
103862
113961
124060
134159
144258
154258
164456
174456
184555
194654
204852
214852
224852
234951
244951
254951
264951
274852
284951
294951
304852
314951

Chance of precipitation in May

Any precipitationSnow

San Sebastiano gets around 138 mm of rain and snow over 20.1 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 64% and peaks near 68% on the wettest days, and about 0 day brings snow.

0%20%40%60%80%151015202531
Rain chance (%)Snow chance (%)
1673
2673
3683
4683
5683
6682
7682
8682
9672
10672
11661
12661
13651
14651
15651
16640
17640
18630
19630
20620
21620
22620
23610
24610
25610
26610
27620
28620
29620
30630
31630

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 94% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
4991
5991
6991
7991
8991
9991
10991
11991
12982
13982
14982
15982
16973
17973
18964
19964
20955
21946
22937
23928
249010
258812
268713
278515
288317
298020
307822
317624

Wind in May

Winds average 4 km/h in May.

Across May, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

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 5:15 AM to 4:40 AM, and sunset from 7:18 PM to 7:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.05:157:18
214.15:137:19
314.15:127:20
414.25:107:21
514.25:097:23
614.35:077:24
714.35:067:25
814.45:047:27
914.45:037:28
1014.55:027:29
1114.55:007:30
1214.54:597:32
1314.64:587:33
1414.64:567:34
1514.74:557:35
1614.74:547:36
1714.74:537:38
1814.84:527:39
1914.84:517:40
2014.94:507:41
2114.94:497:42
2214.94:487:43
2315.04:477:44
2415.04:467:45
2515.04:457:47
2615.14:447:48
2715.14:437:49
2815.14:427:50
2915.14:427:51
3015.24:417:52
3115.24:407:52

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.29 kWh/m².

For context, solar energy here swings from a low near 1.34 kWh/m² to a high of 5.84 kWh/m² in July across the year — May's 5.29 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
75.0Bright
85.0Bright
95.0Bright
105.1Bright
115.1Bright
125.2Bright
135.2Bright
145.2Bright
155.3Bright
165.3Bright
175.3Bright
185.4Bright
195.4Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in May

Is May a good time to visit San Sebastiano?

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

4.4
Sightseeing
5th-best month of the year
1.3
Beach & pool
5th-best month of the year

May is a reasonable time to visit San Sebastiano for sightseeing.

What to pack for San Sebastiano in May

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

In May, San Sebastiano sees daytime highs around 17°C and nights near 9°C. Pack rain gear. Worth having: sun protection. About 20 days see rain.

rain gearsun protection

UV index in San Sebastiano 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 San Sebastiano peaks around July 15 at about 8 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr7High
May7Very high
Jun8Very high
Jul8Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in San Sebastiano 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 San Sebastiano 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).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2021 µg/m³Nov 1514 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb17Moderate
Mar21Moderate
Apr20Moderate
May17Moderate
Jun19Moderate
Jul16Moderate
Aug14Moderate
Sep14Moderate
Oct14Moderate
Nov13Moderate
Dec15Moderate
Location & terrain

Where is San Sebastiano?

San Sebastiano sits at 45.7°N, 10.3°E, 460 m above sea level, in Italy. The nearest listed city is Lumezzane, 1.0 km away.

Topography around San Sebastiano

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

Within 3 km, the terrain around San Sebastiano has large variations in elevation — a maximum elevation change of 1,044 m around an average of 762 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,830 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,556 m.

The land around San Sebastiano is covered by trees (83%) within 3 km, trees (72%) within 16 km, and trees (40%), cropland (27%) and grassland (20%) within 80 km.

3 km
1,044 m
16 km
1,830 m
80 km
3,556 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewatermoss and lichen
May weather nearby: Lumezzane 1.0 km · Brescia 13 km · Ghedi 28 km · Chiari 29 km · Montichiari 29 km · Palazzolo sull'Oglio 29 km · Desenzano del Garda 30 km · Castiglione delle Stiviere 34 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 San Sebastiano (45.6519°, 10.2568°, elevation 460 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).