Kranj weather in May

In May, Kranj sees average daytime highs of 18°C and overnight lows near 9°C, with 113 mm of rain across 14.4 wet days and about 14.7 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 20°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 Kranj's 6th-clearest and 3rd-windiest month. For the whole year in context, see Kranj's year-round climate.

Daytime high
18°
5th warmest
Overnight low
8th coldest
Rainfall
113 mm
14.4 wet days
Daylight
14 h 48 min
4:36 AM – 7:22 PM
Cloud cover
63%
6th clearest
Wind
6 km/h
3rd windiest
Solar energy
5.36 kWh/m²
Travel score
5.2
out of 10

Kranj is city in Slovenia.

Air quality
Good
PM10 19.4 µg/m³ · 2019
Density
257/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 17°C in the first days to 20°C by the end.

A typical May day in Kranj reaches about 18°C in the afternoon and slips back to 9°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 23°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1167
2177
3177
4177
5178
6178
7178
8178
9178
10178
11188
12188
13188
14189
15189
16189
17189
18189
19189
20199
21199
22199
231910
241910
251910
261910
272010
282010
292010
302011
312011

How May really feels in Kranj

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.

Kranj weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°617.85.48.80.0
Feb / -4°738.15.5100.1
Mar / 8310.2411.61.9
Apr14° / 10013.51.513.33.6
May18° / 11314.4014.75.2
Jun22° / 12°12414.8015.55.9
Jul24° / 14°12114.2015.26.4
Aug24° / 14°12412.80146.5
Sep19° / 10°13811.9012.35.7
Oct14° / 12910.70.710.73.8
Nov / 13511.32.89.21.1
Dec / -3°9295.18.50.0

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 21% of May, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24159
34159
44159
54258
64258
74258
84258
94159
104258
114258
124159
134258
144357
154456
164357
174357
184456
194456
204555
214654
224654
234555
244654
254555
264654
274555
284555
294555
304456
314357

Chance of precipitation in May

Any precipitation

Kranj gets around 113 mm of rain over 14.4 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 47% and peaks near 50% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
148
248
349
449
549
649
749
849
949
1048
1148
1247
1347
1447
1546
1645
1745
1844
1944
2044
2144
2244
2344
2445
2545
2646
2747
2848
2949
3049
3150

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 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
110000
210000
39910
49910
59910
69910
79910
89910
99910
109820
119820
129820
139820
149820
159730
169730
179640
189550
199550
209460
219271
229181
2389101
2488111
2586131
2685141
2783161
2881181
2979201
3076231
3174251

Wind in May

Winds average 6 km/h in May.

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

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
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 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 4:57 AM to 4:22 AM, and sunset from 7:02 PM to 7:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.14:577:02
214.14:567:04
314.24:547:05
414.24:527:06
514.34:517:08
614.34:497:09
714.44:487:10
814.44:467:12
914.54:457:13
1014.54:447:14
1114.64:427:16
1214.64:417:17
1314.64:407:18
1414.74:387:19
1514.74:377:21
1614.84:367:22
1714.84:357:23
1814.84:347:24
1914.94:327:25
2014.94:317:26
2115.04:307:28
2215.04:297:29
2315.04:287:30
2415.14:277:31
2515.14:267:32
2615.14:267:33
2715.24:257:34
2815.24:247:35
2915.24:237:36
3015.24:227:37
3115.34:227:38

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.36 kWh/m².

For context, solar energy here swings from a low near 1.06 kWh/m² to a high of 5.81 kWh/m² in June across the year — May's 5.36 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.4Bright
195.4Bright
205.4Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in May

Is May a good time to visit Kranj?

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

5.2
Sightseeing
5th-best month of the year
1.9
Beach & pool
5th-best month of the year

May is a reasonable time to visit Kranj for sightseeing.

What to pack for Kranj in May

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

In May, Kranj sees daytime highs around 18°C and nights near 9°C. Pack rain gear. Worth having: sun protection. About 14 days see rain.

rain gearsun protection

UV index in Kranj 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 Kranj peaks around July 16 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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 16UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr7High
May7High
Jun8Very high
Jul9Very high
Aug8Very high
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Kranj 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 Kranj is worst in March — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 2316 µg/m³Nov 910 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb14Moderate
Mar16Moderate
Apr16Moderate
May14Moderate
Jun15Moderate
Jul13Moderate
Aug12Good
Sep11Good
Oct11Good
Nov10Good
Dec12Moderate
Location & terrain

Where is Kranj?

Kranj sits at 46.2°N, 14.4°E, 387 m above sea level, in Slovenia. The nearest listed city is Bled, 23 km away.

BledLjubljanaBohinjSankt MartinKlagenfurtSankt PeterPostojnaTrbovlje

Topography around Kranj

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

Within 3 km, the terrain around Kranj has significant variations in elevation — a maximum elevation change of 288 m around an average of 401 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,811 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,759 m.

The land around Kranj is covered by trees (34%), cropland (26%) and artificial surfaces (23%) within 3 km, trees (69%) within 16 km, and trees (76%) within 80 km.

3 km
288 m
16 km
1,811 m
80 km
2,759 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Bled 23 km · Ljubljana 24 km · Bohinj 31 km · Sankt Martin 42 km · Klagenfurt 43 km · Sankt Peter 43 km · Postojna 53 km · Trbovlje 54 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 Kranj (46.2389°, 14.3556°, elevation 387 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).