Žumberak weather in May

In May, Žumberak sees average daytime highs of 22°C and overnight lows near 11°C, with 99 mm of rain across 13.4 wet days and about 14.7 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 23°C by the end. The sky is clear or mostly clear about 29% 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 12 min by month's end. Set against the rest of the year, May is Žumberak's 5th-clearest and 4th-windiest month. For the whole year in context, see Žumberak's year-round climate.

Daytime high
22°
5th warmest
Overnight low
11°
8th coldest
Rainfall
99 mm
13.4 wet days
Daylight
14 h 42 min
4:33 AM – 7:16 PM
Cloud cover
58%
5th clearest
Wind
7 km/h
4th windiest
Solar energy
5.5 kWh/m²
Travel score
6.1
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 23°C by the end.

A typical May day in Žumberak reaches about 22°C in the afternoon and slips back to 11°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 27°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
1209
2209
3209
4209
52010
62110
72110
82110
92110
102110
112110
122110
132110
142111
152111
162111
172111
182211
192211
202211
212211
222211
232212
242212
252312
262312
272312
282312
292312
302313
312313

How May really feels in Žumberak

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.

Žumberak weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°5695.28.90.0
Feb / -1°6794.610.10.9
Mar12° / 6410.22.611.63.3
Apr17° / 78110.513.35.2
May22° / 11°9913.4014.76.1
Jun25° / 15°9711.8015.46.5
Jul28° / 16°9111.3015.26.4
Aug27° / 16°9910.6013.96.5
Sep22° / 12°11011.3012.36.4
Oct17° / 879.30.110.75.3
Nov10° / 8910.11.89.32.4
Dec / -1°779.948.50.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% 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 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24753
34753
44753
54852
64852
74951
84951
94951
104951
115050
124951
134951
144951
155050
165050
175050
185149
195149
205149
215149
225248
235248
245248
255446
265446
275446
285446
295347
305347
315347

Chance of precipitation in May

Any precipitation

Žumberak gets around 99 mm of rain over 13.4 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 43% and peaks near 46% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
139
239
339
440
540
641
741
841
941
1041
1141
1241
1342
1442
1542
1643
1743
1843
1943
2043
2144
2244
2344
2444
2545
2645
2745
2846
2946
3046
3146

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 (%)
19370
29280
39190
49190
590100
689110
788120
887130
986140
1085150
1185150
1284160
1382171
1481181
1580191
1679192
1778202
1876213
1975214
2073225
2172226
2271227
2369238
24672310
25662311
26642412
27612514
28592615
29562717
30542818
31522919

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
276calm
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 12 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 4:54 AM to 4:19 AM, and sunset from 6:57 PM to 7:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.14:546:57
214.14:526:58
314.14:517:00
414.24:497:01
514.24:487:02
614.34:467:04
714.34:457:05
814.44:437:06
914.44:427:07
1014.54:417:09
1114.54:397:10
1214.64:387:11
1314.64:377:12
1414.64:367:14
1514.74:347:15
1614.74:337:16
1714.84:327:17
1814.84:317:18
1914.84:307:20
2014.94:297:21
2114.94:287:22
2214.94:277:23
2315.04:267:24
2415.04:257:25
2515.04:247:26
2615.14:237:27
2715.14:227:28
2815.14:217:29
2915.24:217:30
3015.24:207:31
3115.24:197:32

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.5 kWh/m².

For context, solar energy here swings from a low near 1.06 kWh/m² to a high of 5.92 kWh/m² in July across the year — May's 5.5 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.6Bright
225.6Bright
235.6Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in May

Is May a good time to visit Žumberak?

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

May is a reasonable time to visit Žumberak for sightseeing.

What to pack for Žumberak in May

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

In May, Žumberak sees daytime highs around 22°C and nights near 11°C. Worth packing: rain gear and sun protection. About 13 days see rain.

rain gearsun protection

UV index in Žumberak 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 Žumberak 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 Žumberak 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 Žumberak is worst in March — around 19 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2218 µg/m³Sep 1713 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb16Moderate
Mar19Moderate
Apr18Moderate
May16Moderate
Jun16Moderate
Jul14Moderate
Aug14Moderate
Sep13Moderate
Oct14Moderate
Nov14Moderate
Dec15Moderate
Location & terrain

Where is Žumberak?

Žumberak sits at 45.8°N, 15.4°E, 0 m above sea level, in Croatia. The nearest listed city is Novo Mesto, 20 km away.

ZaprešićKarlovacCentarZagrebTrbovljeVelika Gorica

Topography around Žumberak

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

Within 3 km, the terrain around Žumberak has large variations in elevation — a maximum elevation change of 718 m around an average of 703 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,061 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,649 m.

The land around Žumberak is covered by trees (97%) within 3 km, trees (76%) within 16 km, and trees (75%) within 80 km.

3 km
718 m
16 km
1,061 m
80 km
1,649 m
treesgrasslandcroplandartificial surfaces
May weather nearby: Novo Mesto 20 km · Samobor 24 km · Zaprešić 32 km · Karlovac 32 km · Centar 44 km · Zagreb 44 km · Trbovlje 51 km · Velika Gorica 52 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 Žumberak (45.7671°, 15.4148°, 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. 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).