Rovinj weather in May

In May, Rovinj sees average daytime highs of 19°C and overnight lows near 15°C, with 75 mm of rain across 9.5 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 18°C in the first days to 21°C by the end. The sky is clear or mostly clear about 42% 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 Rovinj's 5th-clearest and 9th-windiest month. For the whole year in context, see Rovinj's year-round climate.

Daytime high
19°
5th warmest
Overnight low
15°
8th coldest
Rainfall
75 mm
9.5 wet days
Daylight
14 h 36 min
4:42 AM – 7:21 PM
Cloud cover
48%
5th clearest
Wind
12 km/h
9th windiest
Solar energy
6.23 kWh/m²
Travel score
6.4
out of 10

Rovinj is town and settlement in Istria County, Croatia.

Density
186/km²
people per km²

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 18°C in the first days to 21°C by the end.

A typical May day in Rovinj reaches about 19°C in the afternoon and slips back to 15°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 16°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)
11714
21714
31814
41814
51814
61814
71814
81814
91815
101915
111915
121915
131915
141915
151915
161915
171916
182016
192016
202016
212016
222016
232016
242016
252117
262117
272117
282117
292117
302117
312117

Rovinj 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 / 7490.491.7
Feb / 818.70.910.11.9
Mar12° / 728.90.411.63.2
Apr15° / 11°709.50.113.24.6
May19° / 15°759.5014.66.4
Jun24° / 20°547.6015.47.6
Jul26° / 22°435.7015.17.8
Aug26° / 22°647.2013.97.6
Sep22° / 18°1219.6012.37.0
Oct18° / 15°11611.1010.75.8
Nov14° / 11°14712.809.33.7
Dec10° / 10610.70.58.62.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% 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 39%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25446
35545
45545
55644
65644
75743
85743
95743
105842
115842
125842
135941
145941
156040
166040
176139
186139
196238
206337
216436
226436
236535
246535
256634
266634
276634
286634
296634
306634
316634

Chance of precipitation in May

Any precipitation

Rovinj gets around 75 mm of rain over 9.5 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 31% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
133
234
334
434
534
634
734
834
934
1034
1133
1233
1333
1433
1532
1632
1732
1831
1930
2030
2129
2229
2328
2428
2528
2628
2728
2828
2928
3029
3129

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 48% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1752410
2732610
3702820
4683020
5663130
6633340
7623440
8593650
9573760
10553870
11543880
12523990
135040100
144940110
154740120
164641130
174441140
184341161
194241171
204040181
213940192
223839202
233739223
243638233
253437244
263337265
273136275
283035296
292834317
302733338
312532349

Wind in May

Winds average 12 km/h in May.

Across May, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812calm
2912calm
3012calm
3112calm

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 5:03 AM to 4:29 AM, and sunset from 7:03 PM to 7:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.05:037:03
214.15:017:04
314.14:597:05
414.14:587:07
514.24:577:08
614.24:557:09
714.34:547:10
814.34:527:12
914.44:517:13
1014.44:507:14
1114.44:487:15
1214.54:477:16
1314.54:467:18
1414.64:457:19
1514.64:437:20
1614.64:427:21
1714.74:417:22
1814.74:407:23
1914.84:397:25
2014.84:387:26
2114.84:377:27
2214.94:367:28
2314.94:357:29
2414.94:347:30
2515.04:337:31
2615.04:327:32
2715.04:327:33
2815.14:317:34
2915.14:307:35
3015.14:297:36
3115.14:297:37

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.23 kWh/m².

For context, solar energy here swings from a low near 1.29 kWh/m² to a high of 6.82 kWh/m² in June across the year — May's 6.23 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.9Bright
55.9Bright
65.9Bright
76.0Bright
86.0Bright
96.0Intense
106.0Intense
116.0Intense
126.1Intense
136.1Intense
146.1Intense
156.2Intense
166.2Intense
176.2Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.4Intense
236.4Intense
246.4Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.6Intense
306.6Intense
316.6Intense
Planning a trip in May

Is May a good time to visit Rovinj?

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

6.4
Sightseeing
5th-best month of the year
3.0
Beach & pool
5th-best month of the year

May is a reasonable time to visit Rovinj for sightseeing.

What to pack for Rovinj in May

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

In May, Rovinj sees daytime highs around 19°C and nights near 15°C. Pack sun protection. Worth having: rain gear. About 10 days see rain.

sun protectionrain gear

Sea temperature near Rovinj 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 26°C and coldest in February near 10°C.

It's comfortable for a long swim from Jun 1 to Oct 12 — about 4.4 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb10Bracing
Mar11Bracing
Apr13Bracing
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep23Refreshing
Oct20Cool
Nov17Cool
Dec14Bracing

UV index in Rovinj 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 Rovinj peaks around July 16 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 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 16UV 8Jan 10UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr7High
May7High
Jun8Very high
Jul9Very high
Aug8Very high
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Rovinj?

Rovinj sits at 45.1°N, 13.6°E, 0 m above sea level, in Croatia. The nearest listed city is Pula, 29 km away.

PulaPiranKoperCresTriesteRijekaDivačaMonfalcone

Topography around Rovinj

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

Within 3 km, the terrain around Rovinj has only modest variations in elevation — a maximum elevation change of 70 m around an average of 11 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 301 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,494 m.

The land around Rovinj is covered by water (52%) and trees (22%) within 3 km, water (57%) and trees (29%) within 16 km, and water (60%) and trees (31%) within 80 km.

3 km
70 m
16 km
301 m
80 km
1,494 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Pula 29 km · Piran 50 km · Koper 52 km · Cres 63 km · Trieste 64 km · Rijeka 69 km · Divača 72 km · Monfalcone 81 km

Croatia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 53% of US
price level, 2025
GDP per capita
$27,104
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
87%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
7.9
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 617
Religion
Roman Catholic 79%other Christian 5%none or atheist 5%Orthodox 3%

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 Rovinj (45.0827°, 13.6346°, elevation 0 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).