Acqui Terme weather in May

In May, Acqui Terme sees average daytime highs of 22°C and overnight lows near 13°C, with 71 mm of rain across 9.7 wet days and about 14.6 hours of daylight. It is the 5th-warmest and 5th-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 33% 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 Acqui Terme's 8th-clearest and 2nd-windiest month. For the whole year in context, see Acqui Terme's year-round climate.

Daytime high
22°
5th warmest
Overnight low
13°
8th coldest
Rainfall
71 mm
9.7 wet days
Daylight
14 h 36 min
5:04 AM – 7:41 PM
Cloud cover
55%
8th clearest
Wind
8 km/h
2nd windiest
Solar energy
5.66 kWh/m²
Travel score
6.7
out of 10

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 Acqui Terme 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 17°C and 26°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)
11911
21911
32011
42011
52011
62012
72012
82012
92112
102112
112112
122112
132112
142113
152113
162213
172213
182213
192213
202213
212213
222314
232314
242314
252314
262314
272314
282414
292415
302415
312415

How May really feels in Acqui Terme

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.

Acqui Terme weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 616.94.191.0
Feb / 5863.210.12.2
Mar14° / 6471.611.64.5
Apr17° / 779.20.413.25.7
May22° / 13°719.7014.66.7
Jun26° / 17°537.6015.37.1
Jul29° / 19°396.10156.0
Aug29° / 19°507.6013.96.1
Sep24° / 15°877.8012.37.3
Oct18° / 10°1008.90.210.75.8
Nov12° / 1211019.43.0
Dec / 697.73.68.71.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% 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 48%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24654
34555
44555
54654
64654
74753
84753
94753
104951
114951
124951
135050
145050
155248
165248
175347
185545
195545
205743
215743
225842
235842
245842
255842
265842
275842
285842
295842
305842
315743

Chance of precipitation in May

Any precipitation

Acqui Terme gets around 71 mm of rain over 9.7 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 32% and peaks near 35% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
134
234
334
435
535
635
734
834
934
1034
1134
1234
1334
1434
1533
1633
1733
1832
1931
2031
2130
2230
2329
2428
2528
2627
2727
2827
2927
3027
3127

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 68% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
190100
288120
387130
485150
584160
682180
781190
880200
978220
1077230
1176240
1275250
1372271
1471281
1570291
1669301
1768311
1867321
1965332
2064342
2162353
2261363
2359374
2457385
2555396
2654397
2752408
2850419
29474211
30454312
31434314

Wind in May

Winds average 8 km/h in May.

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

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
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 5:24 AM to 4:51 AM, and sunset from 7:23 PM to 7:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.05:247:23
214.05:237:24
314.15:217:25
414.15:207:26
514.25:187:28
614.25:177:29
714.25:157:30
814.35:147:31
914.35:137:32
1014.45:117:34
1114.45:107:35
1214.55:097:36
1314.55:087:37
1414.55:067:38
1514.65:057:40
1614.65:047:41
1714.65:037:42
1814.75:027:43
1914.75:017:44
2014.85:007:45
2114.84:597:46
2214.84:587:47
2314.94:577:48
2414.94:567:49
2514.94:557:50
2615.04:547:51
2715.04:547:52
2815.04:537:53
2915.04:527:54
3015.14:517:55
3115.14:517:56

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.66 kWh/m².

For context, solar energy here swings from a low near 1.24 kWh/m² to a high of 6.44 kWh/m² in July across the year — May's 5.66 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
135.5Bright
145.6Bright
155.6Bright
165.7Bright
175.7Bright
185.7Bright
195.8Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
246.0Bright
256.0Bright
266.0Intense
276.0Intense
286.0Intense
296.0Intense
306.0Intense
316.1Intense
Planning a trip in May

Is May a good time to visit Acqui Terme?

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

6.7
Sightseeing
3rd-best month of the year
4.5
Beach & pool
5th-best month of the year

May is a reasonable time to visit Acqui Terme for sightseeing.

What to pack for Acqui Terme in May

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

In May, Acqui Terme sees daytime highs around 22°C and nights near 13°C. Worth packing: rain gear and sun protection. About 10 days see rain.

rain gearsun protection

Sea temperature near Acqui Terme 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 at the nearest coast (about 36 km away) 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 Acqui Terme 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 Acqui Terme peaks around July 14 at about 8 (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 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr7High
May6High
Jun8Very high
Jul8Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Acqui Terme 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 Acqui Terme is worst in January — around 25 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1724 µg/m³Aug 1317 µg/m³
PM2.5 (µg/m³)Level
Jan25Moderate
Feb22Moderate
Mar25Moderate
Apr22Moderate
May19Moderate
Jun20Moderate
Jul17Moderate
Aug17Moderate
Sep17Moderate
Oct19Moderate
Nov18Moderate
Dec20Moderate
Location & terrain

Where is Acqui Terme?

Acqui Terme sits at 44.7°N, 8.5°E, 156 m above sea level, in Italy. The nearest listed city is Novi Ligure, 27 km away.

Topography around Acqui Terme

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

Within 3 km, the terrain around Acqui Terme has significant variations in elevation — a maximum elevation change of 302 m around an average of 215 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 722 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,590 m.

The land around Acqui Terme is covered by trees (50%) and grassland (23%) within 3 km, trees (56%) and grassland (24%) within 16 km, and trees (43%) and cropland (29%) within 80 km.

3 km
302 m
16 km
722 m
80 km
2,590 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Novi Ligure 27 km · Alessandria 28 km · Asti 33 km · Alba 34 km · Tortona 40 km · Valenza 40 km · Savona 41 km · Genoa 48 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 Acqui Terme (44.6755°, 8.4693°, elevation 156 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).