Trebinje weather in May

In May, Trebinje sees average daytime highs of 19°C and overnight lows near 12°C, with 98 mm of rain across 11.5 wet days and about 14.4 hours of daylight. It is the 5th-warmest and 9th-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 39% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 48 min at the start of May to 14 h 54 min by month's end. Set against the rest of the year, May is Trebinje's 6th-clearest and 8th-windiest month. For the whole year in context, see Trebinje's year-round climate.

Daytime high
19°
5th warmest
Overnight low
12°
8th coldest
Rainfall
98 mm
11.5 wet days
Daylight
14 h 24 min
4:30 AM – 6:56 PM
Cloud cover
51%
6th clearest
Wind
9 km/h
8th windiest
Solar energy
6.17 kWh/m²
Travel score
6.1
out of 10

Trebinje is city in Bosnia and Herzegovina.

Density
39/km²
people per km²
Founded
2012

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 Trebinje reaches about 19°C in the afternoon and slips back to 12°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 15°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)
11710
21810
31811
41811
51811
61811
71811
81811
91911
101911
111912
121912
131912
141912
151912
161912
171912
182012
192012
202013
212013
222013
232013
242013
252013
262013
272113
282113
292114
302114
312114

How May really feels in Trebinje

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.

Trebinje weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 15711.23.39.21.2
Feb / 15210.93.410.31.6
Mar12° / 14111.32.411.63.0
Apr15° / 13913.40.613.14.2
May19° / 12°9811.5014.46.1
Jun23° / 16°608.5015.17.4
Jul26° / 18°446.9014.87.8
Aug26° / 18°496.6013.77.7
Sep22° / 15°1339.1012.37.1
Oct18° / 11°19410.8010.85.9
Nov13° / 24913.20.69.63.5
Dec / 20613.12.18.91.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 21% of May, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25545
35545
45644
55644
65743
75743
85842
95842
105842
115842
125941
135941
145941
156040
165941
175941
186040
196040
206040
216139
226238
236337
246337
256436
266436
276436
286535
296634
306634
316733

Chance of precipitation in May

Any precipitation

Trebinje gets around 98 mm of rain over 11.5 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 38% and peaks near 42% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
142
241
341
440
540
640
739
839
938
1038
1138
1237
1337
1437
1537
1637
1737
1837
1937
2037
2136
2236
2336
2436
2536
2636
2736
2836
2936
3036
3135

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 77% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19730
29640
39550
49460
59370
69280
79190
890100
989110
1088120
1187130
1286140
1384160
1483170
1582180
1680200
1779210
1876231
1975241
2073261
2171272
2269292
2367303
2465323
2563334
2660355
2758366
2856377
2953398
3051409
31484111

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
259calm
269calm
279calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 48 min at the start of May to 14 h 54 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 4:49 AM to 4:18 AM, and sunset from 6:39 PM to 7:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.84:496:39
213.94:476:40
313.94:466:41
414.04:446:43
514.04:436:44
614.14:426:45
714.14:406:46
814.14:396:47
914.24:386:48
1014.24:376:49
1114.24:366:50
1214.34:346:51
1314.34:336:53
1414.44:326:54
1514.44:316:55
1614.44:306:56
1714.54:296:57
1814.54:286:58
1914.54:276:59
2014.64:267:00
2114.64:257:01
2214.64:247:02
2314.74:237:03
2414.74:237:04
2514.74:227:05
2614.74:217:06
2714.84:207:07
2814.84:207:08
2914.84:197:09
3014.94:187:09
3114.94:187:10

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.17 kWh/m².

For context, solar energy here swings from a low near 1.49 kWh/m² to a high of 6.92 kWh/m² in July across the year — May's 6.17 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.9Bright
65.9Bright
75.9Bright
86.0Bright
96.0Bright
106.0Intense
116.0Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.5Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in May

Is May a good time to visit Trebinje?

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

6.1
Sightseeing
5th-best month of the year
2.8
Beach & pool
5th-best month of the year

May is a reasonable time to visit Trebinje for sightseeing.

What to pack for Trebinje in May

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

In May, Trebinje sees daytime highs around 19°C and nights near 12°C. Pack sun protection. Worth having: rain gear. About 12 days see rain.

sun protectionrain gear

Sea temperature near Trebinje in May

The nearest coast averages about 19°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 20 km away) is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from May 28 to Oct 28 — about 5.1 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May19Cool
Jun23Refreshing
Jul25Warm
Aug26Warm
Sep24Refreshing
Oct21Refreshing
Nov19Cool
Dec16Cool

UV index in Trebinje 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 Trebinje peaks around July 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 highModerateLowJul 17UV 9Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5High
Apr7Very high
May7Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Trebinje?

Trebinje sits at 42.7°N, 18.3°E, 278 m above sea level, in Bosnia and Herzegovina. The nearest listed city is Dubrovnik, 21 km away.

DubrovnikHerceg NoviPerastTivatKotorNikšić

Topography around Trebinje

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

Within 3 km, the terrain around Trebinje has large variations in elevation — a maximum elevation change of 680 m around an average of 434 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,536 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,429 m.

The land around Trebinje is covered by grassland (34%), shrubs (23%) and trees (20%) within 3 km, trees (53%), grassland (22%) and shrubs (20%) within 16 km, and trees (41%), water (28%) and grassland (23%) within 80 km.

3 km
680 m
16 km
1,536 m
80 km
2,429 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Dubrovnik 21 km · Herceg Novi 33 km · Perast 38 km · Tivat 42 km · Kotor 48 km · Nikšić 50 km · Cetinje 59 km · Budva 62 km

Bosnia and Herzegovina travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 40% of US
price level, 2025
GDP per capita
$10,382
2025
Happiness
6.4 / 10
World Happiness, 2025
Safe drinking water
86%
of population, 2024
Homicide rate
1.2
per 100k, 2023
Road deaths
13.5
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 591
Religion
Muslim 51%Orthodox 31%Roman Catholic 15%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 Trebinje (42.712°, 18.3436°, elevation 278 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).