Genoa weather in May

In May, Genoa sees average daytime highs of 18°C and overnight lows near 12°C, with 103 mm of rain across 13.2 wet days and about 14.6 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 16°C in the first days to 20°C by the end. The sky is clear or mostly clear about 27% 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 06 min by month's end. Set against the rest of the year, May is Genoa's 11th-clearest and 8th-windiest month. For the whole year in context, see Genoa's year-round climate.

Daytime high
18°
5th warmest
Overnight low
12°
8th coldest
Rainfall
103 mm
13.2 wet days
Daylight
14 h 36 min
5:03 AM – 7:38 PM
Cloud cover
60%
11th clearest
Wind
9 km/h
8th windiest
Solar energy
5.67 kWh/m²
Travel score
5.4
out of 10

Genoa 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 16°C in the first days to 20°C by the end.

A typical May day in Genoa reaches about 18°C in the afternoon and slips back to 12°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 14°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)
11610
21610
31611
41711
51711
61711
71711
81711
91711
101711
111712
121812
131812
141812
151812
161812
171812
181812
191812
201812
211913
221913
231913
241913
251913
261913
271913
281913
292014
302014
312014

How May really feels in Genoa

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.

Genoa 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 / 9592.591.1
Feb / 728.12.510.11.6
Mar12° / 879.51.311.63.1
Apr14° / 10512.60.113.24.0
May18° / 12°10313.2014.65.4
Jun22° / 16°8211015.36.6
Jul24° / 18°5690157.5
Aug24° / 18°6710.6013.87.1
Sep21° / 15°12411012.36.4
Oct16° / 11°16512.6010.84.9
Nov11° / 19112.10.79.42.8
Dec / 11910.32.48.71.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 55%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23961
33961
43862
53763
63763
73862
83862
93862
103961
114060
124159
134159
144258
154258
164555
174654
184753
194951
205149
215248
225248
235446
245446
255446
265347
275347
285347
295347
305347
315149

Chance of precipitation in May

Any precipitation

Genoa gets around 103 mm of rain over 13.2 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 43% and peaks near 49% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
149
249
349
448
548
648
747
847
946
1046
1145
1245
1344
1444
1544
1643
1743
1842
1942
2041
2141
2240
2340
2439
2539
2638
2738
2838
2938
3039
3139

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 80% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19820
29820
39730
49640
59550
69460
79370
89280
99190
1090100
1189110
1288120
1387130
1486140
1584160
1683170
1782180
1880200
1978211
2076231
2174251
2273261
2370282
2469292
2567312
2664333
2761354
2860364
2957385
3054406
3151427

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 hours at the start of May to 15 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over May. Sunrise moves from 5:23 AM to 4:50 AM, and sunset from 7:20 PM to 7:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.05:237:20
214.05:217:21
314.05:207:23
414.15:187:24
514.15:177:25
614.25:157:26
714.25:147:27
814.35:137:29
914.35:117:30
1014.35:107:31
1114.45:097:32
1214.45:087:33
1314.55:067:35
1414.55:057:36
1514.55:047:37
1614.65:037:38
1714.65:027:39
1814.75:017:40
1914.75:007:41
2014.74:597:42
2114.84:587:44
2214.84:577:45
2314.84:567:46
2414.94:557:47
2514.94:547:48
2614.94:537:49
2715.04:537:50
2815.04:527:51
2915.04:517:52
3015.04:507:52
3115.14:507:53

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.67 kWh/m².

For context, solar energy here swings from a low near 1.29 kWh/m² to a high of 6.41 kWh/m² in July across the year — May's 5.67 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.2Bright
45.2Bright
55.2Bright
65.3Bright
75.3Bright
85.3Bright
95.4Bright
105.4Bright
115.5Bright
125.5Bright
135.5Bright
145.6Bright
155.6Bright
165.7Bright
175.7Bright
185.7Bright
195.8Bright
205.8Bright
215.9Bright
225.9Bright
235.9Bright
246.0Bright
256.0Bright
266.0Bright
276.0Intense
286.0Intense
296.0Intense
306.0Intense
316.0Intense
Planning a trip in May

Is May a good time to visit Genoa?

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

5.4
Sightseeing
5th-best month of the year
1.8
Beach & pool
5th-best month of the year

May is a reasonable time to visit Genoa for sightseeing.

What to pack for Genoa in May

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

In May, Genoa sees daytime highs around 18°C and nights near 12°C. Worth packing: rain gear and sun protection. About 13 days see rain.

rain gearsun protection

Sea temperature near Genoa 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 offshore is warmest in August at about 25°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 3 to Oct 19 — about 4.6 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr15Bracing
May18Cool
Jun22Refreshing
Jul24Warm
Aug25Warm
Sep23Refreshing
Oct20Refreshing
Nov18Cool
Dec16Cool

UV index in Genoa 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 Genoa 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
Mar4Moderate
Apr7Very high
May6High
Jun8Very high
Jul9Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Genoa 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 Genoa is worst in March — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateGoodMar 2016 µg/m³Dec 1011 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb14Moderate
Mar16Moderate
Apr15Moderate
May14Moderate
Jun14Moderate
Jul12Good
Aug13Moderate
Sep12Good
Oct13Moderate
Nov11Good
Dec11Good
Location & terrain

Where is Genoa?

Genoa sits at 44.4°N, 8.9°E, 19 m above sea level, in Italy. The nearest listed city is Rapallo, 23 km away.

Topography around Genoa

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

Within 3 km, the terrain around Genoa has significant variations in elevation — a maximum elevation change of 375 m around an average of 52 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,028 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,776 m.

The land around Genoa is covered by artificial surfaces (45%), water (32%) and trees (23%) within 3 km, water (47%) and trees (42%) within 16 km, and trees (52%) and water (26%) within 80 km.

3 km
375 m
16 km
1,028 m
80 km
1,776 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Rapallo 23 km · Portofino 24 km · Chiavari 32 km · Savona 39 km · Sestri Levante 39 km · Novi Ligure 42 km · Acqui Terme 48 km · Tortona 55 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 Genoa (44.4048°, 8.9444°, elevation 19 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).