Trbovlje weather in May

In May, Trbovlje sees average daytime highs of 19°C and overnight lows near 10°C, with 102 mm of rain across 13.9 wet days and about 14.7 hours of daylight. It is the 5th-warmest and 5th-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 23% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 06 min at the start of May to 15 h 18 min by month's end. Set against the rest of the year, May is Trbovlje's 5th-clearest and 3rd-windiest month. For the whole year in context, see Trbovlje's year-round climate.

Daytime high
19°
5th warmest
Overnight low
10°
8th coldest
Rainfall
102 mm
13.9 wet days
Daylight
14 h 48 min
4:33 AM – 7:19 PM
Cloud cover
62%
5th clearest
Wind
7 km/h
3rd windiest
Solar energy
5.35 kWh/m²
Travel score
5.6
out of 10

Trbovlje is town in Slovenia.

Air quality
Good
PM10 22.2 µg/m³ · 2019
Density
262/km²
people per km²
Founded
1220

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 Trbovlje reaches about 19°C in the afternoon and slips back to 10°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 24°C. Set against its neighbours, May runs about 4°C warmer than April and about 4°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1178
2188
3188
4188
5188
6188
7189
8189
9189
10189
11199
12199
13199
14199
15199
161910
171910
181910
191910
202010
212010
222010
232010
242010
252011
262011
272111
282111
292111
302111
312111

How May really feels in Trbovlje

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.

Trbovlje 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 / -3°437.44.68.80.0
Feb / -3°567.54.5100.3
Mar10° / 6510.23.511.62.3
Apr15° / 84120.913.34.1
May19° / 10°10213.9014.75.6
Jun23° / 13°11514.4015.56.1
Jul25° / 15°12014.2015.26.4
Aug24° / 15°11012.80146.5
Sep20° / 11°10911.8012.35.9
Oct14° / 969.30.410.74.3
Nov / 92102.39.21.4
Dec / -2°708.94.98.50.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 22% of May, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24357
34357
44357
54357
64456
74456
84456
94456
104456
114456
124456
134555
144555
154555
164555
174654
184555
194555
204654
214654
224654
234852
244852
254753
264753
274753
284753
294654
304654
314654

Chance of precipitation in May

Any precipitation

Trbovlje gets around 102 mm of rain over 13.9 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 45% and peaks near 49% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
144
244
345
445
545
646
746
846
946
1046
1145
1245
1345
1444
1544
1644
1744
1843
1943
2043
2143
2243
2344
2444
2545
2646
2746
2847
2948
3048
3149

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 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19910
29910
39820
49820
59820
69820
79730
89730
99730
109730
119730
129640
139640
149640
159550
169550
179460
189370
199181
209091
2189101
2288111
2386122
2484142
2583152
2680173
2778193
2876213
2973234
3071254
3169274

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 06 min at the start of May to 15 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over May. Sunrise moves from 4:55 AM to 4:19 AM, and sunset from 6:59 PM to 7:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.14:556:59
214.14:537:01
314.24:517:02
414.24:507:03
514.34:487:05
614.34:477:06
714.44:457:07
814.44:447:09
914.54:427:10
1014.54:417:11
1114.54:407:12
1214.64:387:14
1314.64:377:15
1414.74:367:16
1514.74:357:17
1614.84:337:19
1714.84:327:20
1814.84:317:21
1914.94:307:22
2014.94:297:23
2114.94:287:25
2215.04:277:26
2315.04:267:27
2415.14:257:28
2515.14:247:29
2615.14:237:30
2715.14:227:31
2815.24:217:32
2915.24:217:33
3015.24:207:34
3115.34:197:35

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.35 kWh/m².

For context, solar energy here swings from a low near 1.06 kWh/m² to a high of 5.72 kWh/m² in June across the year — May's 5.35 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.4Bright
205.4Bright
215.4Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in May

Is May a good time to visit Trbovlje?

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

5.6
Sightseeing
5th-best month of the year
2.5
Beach & pool
5th-best month of the year

May is a reasonable time to visit Trbovlje for sightseeing.

What to pack for Trbovlje in May

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

In May, Trbovlje sees daytime highs around 19°C and nights near 10°C. Pack rain gear. Worth having: sun protection. About 14 days see rain.

rain gearsun protection

UV index in Trbovlje 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 Trbovlje peaks around July 15 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 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr7High
May6High
Jun8Very high
Jul8Very high
Aug7Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Trbovlje 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 Trbovlje is worst in April — around 17 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateApr 917 µg/m³Sep 2012 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb15Moderate
Mar17Moderate
Apr17Moderate
May15Moderate
Jun15Moderate
Jul14Moderate
Aug13Moderate
Sep12Good
Oct12Good
Nov12Good
Dec14Moderate
Location & terrain

Where is Trbovlje?

Trbovlje sits at 46.2°N, 15.1°E, 409 m above sea level, in Slovenia. The nearest listed city is Celje, 18 km away.

CeljeVelenjeNovo MestoLjubljanaŽumberakKranjMariborSamobor

Topography around Trbovlje

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

Within 3 km, the terrain around Trbovlje has large variations in elevation — a maximum elevation change of 733 m around an average of 433 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,024 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,360 m.

The land around Trbovlje is covered by trees (74%) within 3 km, trees (74%) within 16 km, and trees (74%) within 80 km.

3 km
733 m
16 km
1,024 m
80 km
2,360 m
treesgrasslandcroplandartificial surfaces
May weather nearby: Celje 18 km · Velenje 23 km · Novo Mesto 40 km · Ljubljana 44 km · Žumberak 51 km · Kranj 54 km · Maribor 64 km · Samobor 65 km

Slovenia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 63% of US
price level, 2025
GDP per capita
$37,376
2025
Happiness
6.9 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
0.6
per 100k, 2023
Road deaths
5.1
per 100k/yr, 2019
Income group
High
World Bank
Religion
Catholic 69%atheist 14%Orthodox 4%non-believer/agnostic 4%

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 Trbovlje (46.1541°, 15.0518°, elevation 409 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. 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).