Olbia weather in May

In May, Olbia sees average daytime highs of 20°C and overnight lows near 15°C, with 42 mm of rain across 5.9 wet days and about 14.3 hours of daylight. It is the 6th-warmest and 8th-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 52% 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 Olbia's 5th-clearest and 8th-windiest month. For the whole year in context, see Olbia's year-round climate.

Daytime high
20°
6th warmest
Overnight low
15°
7th coldest
Rainfall
42 mm
5.9 wet days
Daylight
14 h 18 min
5:10 AM – 7:27 PM
Cloud cover
42%
5th clearest
Wind
14 km/h
8th windiest
Solar energy
6.73 kWh/m²
Travel score
7.3
out of 10
Air quality
Good
PM10 20.6 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 Olbia reaches about 20°C in the afternoon and slips back to 15°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 23°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)
11813
21913
31913
41913
51914
61914
71914
81914
91914
102014
112014
122014
132014
142015
152015
162015
172015
182115
192115
202115
212115
222115
232116
242116
252116
262216
272216
282216
292216
302216
312217

Olbia weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan13° / 568.59.43.8
Feb13° / 438.110.43.8
Mar15° / 10°55811.74.7
Apr17° / 11°518.213.15.7
May20° / 15°425.914.37.3
Jun24° / 19°162.814.98.6
Jul27° / 21°71.214.68.6
Aug28° / 22°112.313.68.1
Sep25° / 19°365.412.38.0
Oct21° / 16°637.910.97.1
Nov17° / 13°7810.39.75.5
Dec14° / 10°629.39.14.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 33%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26139
36139
46238
56238
66238
76238
86337
96436
106436
116436
126436
136535
146535
156535
166634
176634
186733
196832
206832
216931
226931
236931
247030
257129
267129
277129
287327
297327
307426
317426

Chance of precipitation in May

Any precipitation

Olbia gets around 42 mm of rain over 5.9 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 19% and peaks near 28% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
128
227
327
427
526
625
725
824
923
1022
1122
1221
1320
1419
1519
1618
1717
1817
1916
2016
2115
2215
2314
2414
2514
2613
2713
2813
2913
3012
3112

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 52% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1722710
2712810
3702910
4693010
5673120
6663220
7653320
8643420
9623530
10623530
11613630
12593740
13583840
14563950
15554050
16534160
17524260
18504370
19484380
20474490
214545100
224346110
234146120
243947140
253847150
263647170
273447190
283147210
292947231
302847241
312647261

Wind in May

Winds average 14 km/h in May.

Across May, daily wind ranges from about 14 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

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 5:27 AM to 4:59 AM, and sunset from 7:11 PM to 7:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:277:11
213.85:267:12
313.85:257:13
413.85:237:14
513.95:227:15
613.95:217:16
714.05:207:17
814.05:197:18
914.05:177:19
1014.15:167:21
1114.15:157:22
1214.15:147:23
1314.25:137:24
1414.25:127:25
1514.25:117:26
1614.35:107:27
1714.35:097:28
1814.35:087:29
1914.45:077:30
2014.45:067:30
2114.45:057:31
2214.55:057:32
2314.55:047:33
2414.55:037:34
2514.55:027:35
2614.65:027:36
2714.65:017:37
2814.65:007:38
2914.65:007:39
3014.74:597:39
3114.74:597:40

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.73 kWh/m².

For context, solar energy here swings from a low near 1.8 kWh/m² to a high of 7.44 kWh/m² in July across the year — May's 6.73 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.4Intense
56.4Intense
66.4Intense
76.5Intense
86.5Intense
96.5Intense
106.6Intense
116.6Intense
126.6Intense
136.7Intense
146.7Intense
156.7Intense
166.7Intense
176.8Intense
186.8Intense
196.8Intense
206.8Intense
216.9Intense
226.9Intense
236.9Intense
247.0Intense
257.0Intense
267.0Intense
277.0Intense
287.0Intense
297.1Intense
307.1Intense
317.1Intense
Planning a trip in May

Is May a good time to visit Olbia?

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

7.3
Sightseeing
5th-best month of the year
4.0
Beach & pool
6th-best month of the year

May is one of the better times to visit Olbia for general sightseeing.

What to pack for Olbia in May

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

In May, Olbia sees daytime highs around 20°C and nights near 15°C. Pack sun protection. About 6 days see rain.

sun protection

Sea temperature near Olbia in May

The nearest coast averages about 17°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 25 km away) is warmest in August at about 25°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 10 to Oct 19 — about 4.3 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb14Bracing
Mar14Bracing
Apr15Bracing
May17Cool
Jun21Refreshing
Jul24Refreshing
Aug25Warm
Sep23Refreshing
Oct20Refreshing
Nov17Cool
Dec15Bracing

UV index in Olbia 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 Olbia peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 15UV 9Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr4Moderate
May7High
Jun8Very high
Jul10Very high
Aug7Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Olbia?

Olbia sits at 40.9°N, 9.5°E, 15 m above sea level, in Italy. The nearest listed city is Nuoro, 69 km away.

NuoroMonte RoselloSassariPorto TorresAlgheroAjaccioOristanoSinnai

Topography around Olbia

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

Within 3 km, the terrain around Olbia has only modest variations in elevation — a maximum elevation change of 63 m around an average of 13 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 727 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,434 m.

The land around Olbia is covered by artificial surfaces (39%) and grassland (30%) within 3 km, trees (32%), grassland (24%) and shrubs (20%) within 16 km, and water (47%) and trees (26%) within 80 km.

3 km
63 m
16 km
727 m
80 km
1,434 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Nuoro 69 km · Monte Rosello 81 km · Sassari 82 km · Porto Torres 92 km · Alghero 107 km · Ajaccio 128 km · Oristano 137 km · Sinnai 182 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 Olbia (40.9234°, 9.498°, elevation 15 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).