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Croatia

Slunj weather & best time to visit

Nature escape

Slunj at a glance

Best time
Apr – Oct
Warmest month
Jul · 29°
Sunshine a year
2,040 h
Rain a year
1,144 mm
Climate
Temperate
Time zone
UTC+1 / UTC+2
Elevation
267 m

Climate in Slunj

Slunj has a temperate climate with warm summers and cool winters. July is the warmest month with average highs of 29 °C, while January is the coolest at 6 °C. With around 2,040 hours of sunshine a year, Slunj is moderately sunny; July is the sunniest month with 9.5 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Slunj

The best time to visit Slunj is from April to October. For sightseeing, day trips and hiking, conditions are most comfortable in April, in June and from September to October. Rain is frequent in November; the wettest month is September with 123 mm.

Slunj through the seasons

How the weather changes over the seasons, with averages for each.

Slunj in spring

Mar – May

65

Good

  • 13–22 °C by day
  • 6.3 h of sun a day
  • 37 rainy days in all

Slunj in summer

Jun – Aug

78

Good

  • 26–29 °C by day
  • 9.0 h of sun a day
  • 31 rainy days in all

Slunj in autumn

Sep – Nov

59

Fair

  • 11–23 °C by day
  • 4.3 h of sun a day
  • 34 rainy days in all

Slunj in winter

Dec – Feb

16

Poor

  • 6–8 °C by day
  • 2.8 h of sun a day
  • 33 rainy days in all

Which month for what?

Beach & swimming

No sea nearby

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

Apr, Jun, Sep – Oct

15–28 °C and not too much rain

Rainy months

Nov

Rainy season or more than 12 rainy days

Snow

Nov – Mar

Snow on 2 or more days

Find your perfect month

Tell us what you like and we rate every month in Slunj for you.

Sunshine
Little rain

Your best months: May, September

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

72

Holiday weather in October

Good

Best time to visit: April – October

Good forSightseeing & walks

A typical day in October

  1. Morning, 08:00: about 9°
  2. Midday, 13:00: about 17°
  3. Afternoon, 16:00: about 17°
  4. Evening, 20:00: about 13°
  5. Night, 23:00: about 11°

07:1218:15

Cool evenings: pack a jumper or a jacket.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 06:54–07:52 · evening 17:35–18:33
Blue hour
Morning 06:42–06:54 · evening 18:33–18:44

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in Slunj compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 20° at the start of the month to 14° at the end. The days get 1.5 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high20°14°
Night-time low9°5°
Daylight11.8 h10.3 h

What is the weather like in Slunj in October?

In October, Slunj is mild: daytime highs average 17 °C, and nights cool down to about 7 °C. Expect around 4.4 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 101 mm in total. All in all, October is a good month for a holiday in Slunj.

More details for October

Daylight
11 h 3 min07:12 – 18:15
UV index
3 · moderateclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
11 km/haverage daily peakAll months
Cloud cover
64 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
0 days1 cm or more of fresh snowAll months
Time zone
UTC+2offset from UTC

How the score comes together

  • Temperatureweight 50 %100 %
  • Sunshineweight 20 %23 %
  • Few rainy daysweight 30 %58 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.

What to pack in October

  • Sunscreen
  • A jumper for the evenings
  • Rain jacket or umbrella

Compare two months in Slunj

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

June has the better holiday weather in Slunj: score 85 against 72. In June, days are 9 °C warmer than in October. The sun shines 4 hours longer a day in June.

October vs June, Slunj
MonthOctoberJune
Holiday weather score7285better
Daytime high17°26°
Night-time low7°14°
Sunshine4.4 h8.6 hbetter
Rainy days1010
Rainfall101 mm79 mmbetter
Muggy days0better3

Based on the climate averages 1996–2025.

Slunj month by month

The typical weather for every month at a glance.

15January6° · 2.5 h

In January, Slunj is cold: daytime highs average 6 °C, and nights often drop below freezing (−2 °C). The sun is scarce, with only about 2.5 hours a day. Rain is frequent, with about 11 rainy days and 84 mm in total. Snow falls on about 6 days. All in all, January is not an ideal month for a holiday in Slunj.

Slunj in January
20February8° · 3.8 h

In February, Slunj is cold: daytime highs average 8 °C, and nights often drop below freezing (−2 °C). The sun is scarce, with only about 3.8 hours a day. Rain is frequent, with about 10 rainy days and 84 mm in total. Snow falls on about 5 days. All in all, February is not an ideal month for a holiday in Slunj.

Slunj in February
48March13° · 5.1 h

In March, Slunj is cool: daytime highs average 13 °C, and nights cool down to about 2 °C. Expect around 5.1 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 80 mm in total. Snow falls on about 3 days. All in all, March is a so-so month for a holiday in Slunj.

Slunj in March
74April18° · 6.2 h

In April, Slunj is mild: daytime highs average 18 °C, and nights cool down to about 6 °C. Expect around 6.2 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 92 mm in total. All in all, April is a good month for a holiday in Slunj.

Slunj in April
74May22° · 7.5 h

In May, Slunj is warm: daytime highs average 22 °C, and nights cool down to about 10 °C. The sun shines for around 7.5 hours a day. Rain is frequent, with about 14 rainy days and 115 mm in total. All in all, May is a good month for a holiday in Slunj.

Slunj in May
85June26° · 8.6 h

In June, Slunj is warm: daytime highs average 26 °C, and nights cool down to about 14 °C. The sun shines for around 8.6 hours a day. Rain is frequent, with about 10 rainy days and 79 mm in total. On about 7 days the thermometer climbs to 30 °C or more. All in all, June is an excellent month for a holiday in Slunj.

Slunj in June
74July29° · 9.5 h

In July, Slunj is hot: daytime highs average 29 °C, and nights cool down to about 15 °C. With around 9.5 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 10 rainy days and 85 mm in total. On about 12 days the thermometer climbs to 30 °C or more. All in all, July is a good month for a holiday in Slunj.

Slunj in July
76August28° · 8.9 h

In August, Slunj is hot: daytime highs average 28 °C, and nights cool down to about 15 °C. The sun shines for around 8.9 hours a day. Rain is frequent, with about 10 rainy days and 88 mm in total. On about 12 days the thermometer climbs to 30 °C or more. All in all, August is a good month for a holiday in Slunj.

Slunj in August
74September23° · 6.1 h

In September, Slunj is warm: daytime highs average 23 °C, and nights cool down to about 11 °C. Expect around 6.1 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 123 mm in total. All in all, September is a good month for a holiday in Slunj.

Slunj in September
72October17° · 4.4 h

In October, Slunj is mild: daytime highs average 17 °C, and nights cool down to about 7 °C. Expect around 4.4 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 101 mm in total. All in all, October is a good month for a holiday in Slunj.

Slunj in October
31November11° · 2.4 h

In November, Slunj is cool: daytime highs average 11 °C, and nights cool down to about 4 °C. The sun is scarce, with only about 2.4 hours a day. Rain is frequent, with about 13 rainy days and 117 mm in total. Snow falls on about 3 days. All in all, November is not an ideal month for a holiday in Slunj.

Slunj in November
14December6° · 2.0 h

In December, Slunj is cold: daytime highs average 6 °C, and nights often drop below freezing (−1 °C). The sun is scarce, with only about 2.0 hours a day. Rain is frequent, with about 12 rainy days and 96 mm in total. Snow falls on about 5 days. All in all, December is not an ideal month for a holiday in Slunj.

Slunj in December

Climate in detail

Year & climate table

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Slunj

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Frost below 0°
  • Cold 0–8°
  • Cool 8–15°
  • Pleasant 15–20°

ColdOctober: nights around 7°. The room should be heated.

The coolest nights are in January (−2°), the warmest in July (15°). Nights are pleasant for sleeping (15 to 20 °C) from July to August. Nights fall below 8 °C on average from October to April, so the room should be heated.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 17°Night 7°
DayNight
MonthScoreDayNightSunRain daysRain mm
JanuaryJan156°−2°2.5 h1184
FebruaryFeb208°−2°3.8 h1084
MarchMar4813°2°5.1 h1180
AprilApr7418°6°6.2 h1292
MayMay7422°10°7.5 h14115
JuneJun8526°14°8.6 h1079
JulyJul7429°15°9.5 h1085
AugustAug7628°15°8.9 h1088
SeptemberSep7423°11°6.1 h11123
OctoberOct7217°7°4.4 h10101
NovemberNov3111°4°2.4 h13117
DecemberDec146°−1°2.0 h1296

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

45.11° N, 15.58° E · 267 m · Europe/Zagreb

Sunshine
Sunshine

Sunshine hours in Slunj

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
2,040 hours
Sunniest month
Jul · 9.5 h a day
Least sunshine
Dec · 2.0 h a day
OctoberSunshine 4.4 hDaylight 11.0 hShare of daylight 40 %
SunshineDaylight

In October, the sun shines for about 4.4 of 11.0 hours of daylight in Slunj, 40 % of the daylight hours.

Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.

Rain
Rain

Rain in Slunj: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
1,144 mm on 135 days
Wettest month
Sep · 123 mm
Driest month
Jun · 79 mm
OctoberRainy days 10Rainfall 101 mm

In October, Slunj has about 10 rainy days with 101 mm of rain in total.

UV index
Sun protection

UV index in Slunj

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
3 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.

The sun is strongest in June (UV 9).

Minutes until sunburn in October

Very fair skin
about 45 min
Fair skin
about 55 min
Light brown skin
about 75 min
Olive skin
about 100 min

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & clouds
Wind & clouds

Wind and clouds in Slunj

How breezy and how cloudy Slunj is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
11 km/h · light breeze or less
Windiest month
Mar · 13 km/h
Calmest month
Aug · 10 km/h
OctoberWind 11 km/hBeaufort 2

In October, the wind in Slunj typically peaks at 11 km/h during the day: Beaufort 2, light breeze or less.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
59 % · variable cloud
Clearest month
Jul · 43 %
Cloudiest month
Nov · 72 %
OctoberCloud cover 64 %Sunshine 4.4 h

In October, cloud covers on average 64 % of the sky over Slunj: variable cloud, with about 4.4 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Heat & humidity
Heat & humidity

Heat and humidity in Slunj

How often the day gets hot in Slunj (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
33 days
Hottest month
Jul · 29 °C
Hot months
none

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 0Daytime high 17 °C

In October, Slunj has about 0 hot days, with an average daytime high of 17 °C: pleasant. Heat plays no part this month.

Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year

Snow
Snow

Snow in Slunj

When Slunj is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.

Snow days a year
23 days
Fresh snow a year
117 cm
Snowy months
Jan

Snow calendar

  • hardly any
  • possible
  • likely
  • very likely
OctoberDays with fresh snow 0Fresh snow 1 cmChance of snow 4 / 100

In October, it hardly ever snows in Slunj.

Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.

Planning a trip to Slunj

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Slunj in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

Slunj has its best school-holiday weather during May half-term (score 76) and its weakest during the Christmas holidays (score 15).

  • Easter holidays

    Mar – Apr

    66

    Good

    • 16 °C by day
    • 5.9 h of sun a day
    • 12 rainy days a month

    Keep in mind: Snow

  • May half-term

    May – Jun

    76

    GoodBest holidays

    • 23 °C by day
    • 7.7 h of sun a day
    • 13 rainy days a month
  • Summer holidays

    Jul – Aug

    75

    Good

    • 29 °C by day
    • 9.1 h of sun a day
    • 10 rainy days a month
  • October half-term

    Oct

    72

    Good

    • 17 °C by day
    • 4.4 h of sun a day
    • 10 rainy days a month

    Good for: Sightseeing & walks

  • Christmas holidays

    Dec – Jan

    15

    Poor

    • 6 °C by day
    • 2.3 h of sun a day
    • 11 rainy days a month

    Keep in mind: Snow

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 2 h 10 min
Distance
1,380 km
Time zone
UTC+2
Jet lag
Hardly any (under 3 h)

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Good to know: Croatia

Currency
Euro (EUR)
Language
Croatian
Sockets
Type C, F · 230 V
Traffic
Drives on the right
Dialling code
+385
Emergency number
112

UK plugs need a travel adapter

Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.

Compare & alternatives

Compare with another place
Compare

Slunj compared

Put Slunj side by side with another destination.

Nearby:
Compare with home:

Slunj vs Ogulin

In October the holiday weather in Slunj and Ogulin is about equally good (score 72 vs 69). During the day it is about as warm in Ogulin as in Slunj.

Slunj vs Ogulin, in October
in OctoberSlunjOgulin
Holiday weather score7269
Daytime high17°17°
Sunshine4 h4 h
Rainy days1010
Best timeApr – OctApr – Sep

Through the year

OctoberSlunj 17°Ogulin 17°
SlunjOgulin
Go to Ogulin
Best places in the country
Ranking

Croatia in October: the best places

In October, Slunj ranks 6 among the 31 nearest destinations in this country.

  1. Sisak21°81
  2. 2Knin20°78
  3. 3Gospić17°74
  4. 4Samobor17°74
  5. 5Karlovac18°73
  6. 6SlunjThis page17°72
  7. 7Krapina17°72
  8. 8Otočac16°70
All destinations: Croatia
Places nearby

Near Slunj

Other destinations close by.

Places with a similar climate

Places with a climate like Slunj

Destinations whose weather through the year is closest to Slunj's – good alternatives.

  1. 88 % similar76TeslićBosnia and Herzegovina18°Best time: Apr – Oct
  2. 87 % similar78DerventaBosnia and Herzegovina18°Best time: Apr – Oct
  3. 86 % similar76SrebrenicaBosnia and Herzegovina18°Best time: Apr – Oct
  4. 86 % similar78PožegaCroatia18°Best time: Apr – Oct

Frequently asked questions about Slunj

When is the best time to visit Slunj?

The best time to visit Slunj is from April to October. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

What is the warmest month in Slunj?

July is the warmest month, with average highs of 29 °C and nights around 15 °C. January is the coolest month at 6 °C.

When does it rain most in Slunj?

Rain is frequent in November; the wettest month is September with 123 mm. The driest month is June with 79 mm.

How many hours of sunshine does Slunj get?

Slunj gets around 2,040 hours of sunshine a year. The sunniest month is July with 9.5 hours a day; in December there are 2.0 hours a day.

What time zone is Slunj in?

Slunj is on UTC+1 in January and UTC+2 in July.

How long is the flight from London to Slunj?

A nonstop flight from London to Slunj takes about 2 h 10 min, for a straight-line distance of about 1,380 km.

Which school holidays are best for Slunj?

Slunj has its best school-holiday weather during May half-term (score 76) and its weakest during the Christmas holidays (score 15). Holiday ratings (0–100): Easter holidays 66, May half-term 76, summer holidays 75, October half-term 72, Christmas holidays 15.