Sisak weather in May

In May, Sisak sees average daytime highs of 23°C and overnight lows near 12°C, with 85 mm of rain across 12.3 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 21°C in the first days to 24°C by the end. The sky is clear or mostly clear about 32% 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 12 min by month's end. Set against the rest of the year, May is Sisak's 5th-clearest and 4th-windiest month. For the whole year in context, see Sisak's year-round climate.

Daytime high
23°
5th warmest
Overnight low
12°
8th coldest
Rainfall
85 mm
12.3 wet days
Daylight
14 h 42 min
4:30 AM – 7:11 PM
Cloud cover
57%
5th clearest
Wind
8 km/h
4th windiest
Solar energy
5.57 kWh/m²
Travel score
6.5
out of 10
Air quality
Good
PM10 29.8 µg/m³ · 2019

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 21°C in the first days to 24°C by the end.

A typical May day in Sisak reaches about 23°C in the afternoon and slips back to 12°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 28°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)
12110
22110
32110
42111
52211
62211
72211
82211
92211
102211
112211
122211
132211
142212
152212
162212
172312
182312
192312
202312
212312
222312
232313
242313
252413
262413
272413
282413
292413
302414
312514

How May really feels in Sisak

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.

Sisak 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 / -1°558.53.98.90.1
Feb / -1°578.83.510.11.3
Mar13° / 629.91.811.63.8
Apr18° / 6910.90.313.25.6
May23° / 12°8512.3014.76.5
Jun27° / 16°7710.8015.46.5
Jul29° / 17°719.3015.15.9
Aug29° / 17°738.6013.96.2
Sep23° / 13°909.8012.36.8
Oct18° / 768.7010.75.8
Nov11° / 799.31.49.32.8
Dec / -0°689.82.68.60.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% 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 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34852
44852
54951
64951
74951
85050
95050
105149
115149
125149
135149
145248
155149
165149
175248
185248
195248
205248
215248
225248
235347
245248
255347
265248
275248
285248
295149
305248
315248

Chance of precipitation in May

Any precipitation

Sisak gets around 85 mm of rain over 12.3 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 40% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
238
338
438
538
639
739
839
939
1039
1139
1240
1340
1440
1540
1640
1740
1841
1940
2040
2140
2240
2340
2440
2540
2640
2740
2840
2940
3040
3141

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 70% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1891100
2871210
3851410
4841510
5831610
6821710
7811810
8801910
9792010
10782110
11762220
12752320
13742420
14742420
15722530
16712630
17702640
18682750
19672760
20662770
21652780
22642790
236227110
246127120
256027130
265827150
275527171
285328181
295128201
304929221
314629232

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 hours 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 72 minutes over May. Sunrise moves from 4:51 AM to 4:16 AM, and sunset from 6:53 PM to 7:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.04:516:53
214.14:496:54
314.14:486:55
414.24:466:57
514.24:456:58
614.34:436:59
714.34:427:00
814.44:407:02
914.44:397:03
1014.44:387:04
1114.54:367:05
1214.54:357:07
1314.64:347:08
1414.64:337:09
1514.64:317:10
1614.74:307:11
1714.74:297:13
1814.84:287:14
1914.84:277:15
2014.84:267:16
2114.94:257:17
2214.94:247:18
2314.94:237:19
2415.04:227:20
2515.04:217:21
2615.04:207:22
2715.14:197:23
2815.14:197:24
2915.14:187:25
3015.24:177:26
3115.24:167:27

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.57 kWh/m².

For context, solar energy here swings from a low near 1.08 kWh/m² to a high of 6.01 kWh/m² in July across the year — May's 5.57 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in May

Is May a good time to visit Sisak?

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

6.5
Sightseeing
2nd-best month of the year
4.8
Beach & pool
5th-best month of the year

May is a reasonable time to visit Sisak for sightseeing.

What to pack for Sisak in May

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

In May, Sisak sees daytime highs around 23°C and nights near 12°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Sisak 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 Sisak peaks around July 14 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 14UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr7High
May6High
Jun8Very high
Jul8Very high
Aug7Very high
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

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

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2317 µg/m³Sep 1912 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb15Moderate
Mar17Moderate
Apr17Moderate
May16Moderate
Jun15Moderate
Jul14Moderate
Aug14Moderate
Sep12Moderate
Oct13Moderate
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Sisak?

Sisak sits at 45.5°N, 16.4°E, 108 m above sea level, in Croatia. The nearest listed city is Velika Gorica, 36 km away.

Velika GoricaSesveteCentarZagrebVelika KladušaPrijedorBjelovarZaprešić

Topography around Sisak

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

Within 3 km, the terrain around Sisak has only modest variations in elevation — a maximum elevation change of 43 m around an average of 102 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 334 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,248 m.

The land around Sisak is covered by trees (39%) within 3 km, trees (60%) within 16 km, and trees (68%) within 80 km.

3 km
43 m
16 km
334 m
80 km
1,248 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Velika Gorica 36 km · Sesvete 45 km · Centar 50 km · Zagreb 50 km · Velika Kladuša 55 km · Prijedor 60 km · Bjelovar 60 km · Zaprešić 62 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 Sisak (45.4661°, 16.3775°, elevation 108 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).