Imperia weather in May

In May, Imperia sees average daytime highs of 17°C and overnight lows near 12°C, with 83 mm of rain across 12.4 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 16°C in the first days to 19°C by the end. The sky is clear or mostly clear about 28% 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 Imperia's 12th-clearest and 9th-windiest month. For the whole year in context, see Imperia's year-round climate.

Daytime high
17°
5th warmest
Overnight low
12°
8th coldest
Rainfall
83 mm
12.4 wet days
Daylight
14 h 30 min
5:08 AM – 7:40 PM
Cloud cover
59%
12th clearest
Wind
8 km/h
9th windiest
Solar energy
6.1 kWh/m²
Travel score
5.3
out of 10

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 Imperia reaches about 17°C in the afternoon and slips back to 12°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 20°C. Set against its neighbours, May runs about 3°C warmer than April and about 4°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11611
21611
31611
41611
51611
61611
71611
81711
91712
101712
111712
121712
131712
141712
151712
161812
171812
181813
191813
201813
211813
221813
231813
241813
251913
261914
271914
281914
291914
301914
311914

Imperia 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 / 737.23.29.11.7
Feb / 626.83.110.22.0
Mar12° / 7892.111.63.1
Apr14° / 10312.3113.23.9
May17° / 12°8312.4014.55.3
Jun21° / 16°7211.5015.26.4
Jul24° / 18°5510.4014.97.2
Aug24° / 18°5210.9013.87.1
Sep21° / 15°9010.5012.36.5
Oct17° / 12°1089.90.110.85.4
Nov12° / 144101.39.53.3
Dec / 898.12.78.82.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24357
34258
44357
54357
64357
74357
84357
94456
104456
114456
124555
134555
144555
154753
164753
174951
184951
195050
205149
215248
225248
235248
245347
255248
265248
275149
285149
295149
305149
315050

Chance of precipitation in May

Any precipitation

Imperia gets around 83 mm of rain over 12.4 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 41% and peaks near 44% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
144
244
344
444
544
644
744
844
944
1043
1143
1243
1343
1442
1542
1641
1740
1840
1939
2038
2138
2237
2337
2437
2537
2637
2737
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 74% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19640
29550
39460
49370
59280
69190
789110
888120
987130
1086140
1185150
1284160
1383170
1480191
1579201
1678211
1777221
1875241
1973252
2071272
2169283
2267303
2364324
2462335
2559356
2656377
2754388
28504010
29484111
30454312
31424414

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 7 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
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
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 5:27 AM to 4:55 AM, and sunset from 7:23 PM to 7:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:277:23
214.05:267:24
314.05:247:25
414.15:237:26
514.15:227:27
614.15:207:29
714.25:197:30
814.25:187:31
914.35:167:32
1014.35:157:33
1114.35:147:35
1214.45:137:36
1314.45:117:37
1414.55:107:38
1514.55:097:39
1614.55:087:40
1714.65:077:41
1814.65:067:42
1914.65:057:43
2014.75:047:45
2114.75:037:46
2214.75:027:47
2314.85:017:48
2414.85:007:49
2514.84:597:50
2614.94:597:51
2714.94:587:52
2814.94:577:53
2915.04:567:53
3015.04:567:54
3115.04:557:55

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.1 kWh/m².

For context, solar energy here swings from a low near 1.49 kWh/m² to a high of 6.65 kWh/m² in July across the year — May's 6.1 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.7Bright
45.7Bright
55.7Bright
65.8Bright
75.8Bright
85.8Bright
95.9Bright
105.9Bright
115.9Bright
126.0Bright
136.0Intense
146.0Intense
156.1Intense
166.1Intense
176.1Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.4Intense
286.4Intense
296.4Intense
306.4Intense
316.4Intense
Planning a trip in May

Is May a good time to visit Imperia?

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

5.3
Sightseeing
6th-best month of the year
1.5
Beach & pool
5th-best month of the year

May is a reasonable time to visit Imperia for sightseeing.

What to pack for Imperia in May

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

In May, Imperia sees daytime highs around 17°C and nights near 12°C. Pack sun protection. Worth having: rain gear. About 12 days see rain.

sun protectionrain gear

Sea temperature near Imperia 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 7 to Oct 12 — about 4.2 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr15Bracing
May18Cool
Jun21Refreshing
Jul24Refreshing
Aug25Warm
Sep22Refreshing
Oct20Cool
Nov17Cool
Dec15Cool

UV index in Imperia 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 Imperia peaks around July 14 at about 9 (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 14UV 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5Moderate
Apr7Very high
May7High
Jun8Very high
Jul9Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Imperia 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 Imperia is worst in March — around 19 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2018 µg/m³Nov 1813 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb16Moderate
Mar19Moderate
Apr18Moderate
May15Moderate
Jun15Moderate
Jul13Moderate
Aug14Moderate
Sep13Moderate
Oct14Moderate
Nov13Moderate
Dec14Moderate
Location & terrain

Where is Imperia?

Imperia sits at 43.9°N, 8.0°E, 10 m above sea level, in Italy. The nearest listed city is Sanremo, 22 km away.

Topography around Imperia

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

Within 3 km, the terrain around Imperia has significant variations in elevation — a maximum elevation change of 351 m around an average of 72 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,165 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,195 m.

The land around Imperia is covered by trees (40%) and water (38%) within 3 km, water (52%) and trees (39%) within 16 km, and trees (45%) and water (38%) within 80 km.

3 km
351 m
16 km
1,165 m
80 km
3,195 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Sanremo 22 km · Albenga 23 km · Ventimiglia 36 km · Menton 45 km · Monte Carlo 52 km · Monaco 52 km · Savona 58 km · Mondovì 59 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 Imperia (43.8892°, 8.0393°, elevation 10 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).