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Slovenia

Idrija weather & best time to visit

Nature escape

Idrija at a glance

Best time
Apr – Sep
Warmest month
Jul · 27°
Sunshine a year
2,150 h
Rain a year
1,787 mm
Climate
Temperate
Time zone
UTC+1 / UTC+2
Elevation
441 m

Climate in Idrija

Idrija has a temperate climate with warm summers and cool winters. July is the warmest month with average highs of 27 °C, while January is the coolest at 5 °C. With around 2,150 hours of sunshine a year, Idrija is moderately sunny; July is the sunniest month with 9.4 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Idrija

The best time to visit Idrija is from April to September. Rain is frequent from October to November; the wettest month is November with 208 mm.

Idrija through the seasons

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

Idrija in spring

Mar – May

60

Good

  • 12–21 °C by day
  • 6.5 h of sun a day
  • 42 rainy days in all

Idrija in summer

Jun – Aug

77

Good

  • 25–27 °C by day
  • 8.9 h of sun a day
  • 41 rainy days in all

Idrija in autumn

Sep – Nov

53

Fair

  • 11–22 °C by day
  • 4.6 h of sun a day
  • 39 rainy days in all

Idrija in winter

Dec – Feb

20

Poor

  • 5–8 °C by day
  • 3.4 h of sun a day
  • 29 rainy days in all

Which month for what?

Beach & swimming

No sea nearby

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

No month

15–28 °C and not too much rain

Rainy months

Oct – Nov

Rainy season or more than 12 rainy days

Snow

Dec – Feb

Snow on 2 or more days

Find your perfect month

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

Sunshine
Little rain

Your best months: May – June, 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

62

Holiday weather in October

Good

Best time to visit: April – September

Keep in mindFrequent rain

A typical day in October

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

07:1918:20

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 07:01–08:00 · evening 17:39–18:38
Blue hour
Morning 06:49–07:01 · evening 18:38–18:50

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 Idrija compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 19° at the start of the month to 13° at the end. The days get 1.5 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high19°13°
Night-time low10°6°
Daylight11.8 h10.2 h

What is the weather like in Idrija in October?

In October, Idrija is mild: daytime highs average 16 °C, and nights cool down to about 8 °C. Expect around 4.6 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 196 mm in total. All in all, October is a good month for a holiday in Idrija.

More details for October

Daylight
11 h 1 min07:19 – 18:20
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
66 %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 %93 %
  • Sunshineweight 20 %27 %
  • Few rainy daysweight 30 %35 %

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

What to pack in October

  • A jumper for the evenings
  • Rain jacket or umbrella

Compare two months in Idrija

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

vs

August has the better holiday weather in Idrija: score 78 against 62. In August, days are 11 °C warmer than in October. The sun shines 4 hours longer a day in August.

October vs August, Idrija
MonthOctoberAugust
Holiday weather score6278better
Daytime high16°27°
Night-time low8°16°
Sunshine4.6 h8.8 hbetter
Rainy days1313
Rainfall196 mm138 mmbetter
Muggy days0better5

Based on the climate averages 1996–2025.

Idrija month by month

The typical weather for every month at a glance.

18January5° · 3.2 h

In January, Idrija is cold: daytime highs average 5 °C, and nights often drop below freezing (−1 °C). The sun is scarce, with only about 3.2 hours a day. Rain is frequent, with about 10 rainy days and 113 mm in total. Snow falls on about 3 days. All in all, January is not an ideal month for a holiday in Idrija.

Idrija in January
23February8° · 4.4 h

In February, Idrija is cold: daytime highs average 8 °C, and nights often drop below freezing (−1 °C). Expect around 4.4 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 111 mm in total. Snow falls on about 3 days. All in all, February is not an ideal month for a holiday in Idrija.

Idrija in February
45March12° · 5.5 h

In March, Idrija is cool: daytime highs average 12 °C, and nights cool down to about 2 °C. Expect around 5.5 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 127 mm in total. Snow falls on about 2 days. All in all, March is a so-so month for a holiday in Idrija.

Idrija in March
66April16° · 6.4 h

In April, Idrija is mild: daytime highs average 16 °C, and nights cool down to about 6 °C. Expect around 6.4 hours of sunshine a day. It rains often – on about 14 days, adding up to 139 mm. All in all, April is a good month for a holiday in Idrija.

Idrija in April
69May21° · 7.7 h

In May, Idrija is mild: daytime highs average 21 °C, and nights cool down to about 10 °C. The sun shines for around 7.7 hours a day. It rains often – on about 17 days, adding up to 167 mm. All in all, May is a good month for a holiday in Idrija.

Idrija in May
77June25° · 8.5 h

In June, Idrija is warm: daytime highs average 25 °C, and nights cool down to about 14 °C. The sun shines for around 8.5 hours a day. It rains often – on about 14 days, adding up to 140 mm. All in all, June is a good month for a holiday in Idrija.

Idrija in June
76July27° · 9.4 h

In July, Idrija is hot: daytime highs average 27 °C, and nights cool down to about 16 °C. With around 9.4 hours of sunshine a day, there is plenty of sun. It rains often – on about 14 days, adding up to 135 mm. On about 7 days the thermometer climbs to 30 °C or more. All in all, July is a good month for a holiday in Idrija.

Idrija in July
78August27° · 8.8 h

In August, Idrija is hot: daytime highs average 27 °C, and nights cool down to about 16 °C. The sun shines for around 8.8 hours a day. Rain is frequent, with about 13 rainy days and 138 mm in total. On about 7 days the thermometer climbs to 30 °C or more. All in all, August is a good month for a holiday in Idrija.

Idrija in August
73September22° · 6.5 h

In September, Idrija is warm: daytime highs average 22 °C, and nights cool down to about 12 °C. The sun shines for around 6.5 hours a day. Rain is frequent, with about 13 rainy days and 179 mm in total. All in all, September is a good month for a holiday in Idrija.

Idrija in September
62October16° · 4.6 h

In October, Idrija is mild: daytime highs average 16 °C, and nights cool down to about 8 °C. Expect around 4.6 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 196 mm in total. All in all, October is a good month for a holiday in Idrija.

Idrija in October
25November11° · 2.8 h

In November, Idrija is cool: daytime highs average 11 °C, and nights cool down to about 4 °C. The sun is scarce, with only about 2.8 hours a day. Rain is frequent, with about 13 rainy days and 208 mm in total. All in all, November is not an ideal month for a holiday in Idrija.

Idrija in November
18December6° · 2.7 h

In December, Idrija is cold: daytime highs average 6 °C, and nights cool down to about 0 °C. The sun is scarce, with only about 2.7 hours a day. Rain is frequent, with about 10 rainy days and 133 mm in total. Snow falls on about 2 days. All in all, December is not an ideal month for a holiday in Idrija.

Idrija in December

Climate in detail

Climate through the year

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

Best time to visit

Nights and sleep in Idrija

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°

CoolOctober: nights around 8°. A duvet at night and a jumper for the evening.

The coolest nights are in January (−1°), the warmest in July (16°). Nights are pleasant for sleeping (15 to 20 °C) from July to August. Nights fall below 8 °C on average from November to April, so the room should be heated.

Temperatures through the year

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

OctoberDay 16°Night 8°
DayNight
MonthScoreDayNightSunRain daysRain mm
JanuaryJan185°−1°3.2 h10113
FebruaryFeb238°−1°4.4 h10111
MarchMar4512°2°5.5 h12127
AprilApr6616°6°6.4 h14139
MayMay6921°10°7.7 h17167
JuneJun7725°14°8.5 h14140
JulyJul7627°16°9.4 h14135
AugustAug7827°16°8.8 h13138
SeptemberSep7322°12°6.5 h13179
OctoberOct6216°8°4.6 h13196
NovemberNov2511°4°2.8 h13208
DecemberDec186°0°2.7 h10133

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

46.00° N, 14.03° E · 441 m · Europe/Ljubljana

Sunshine

Sunshine hours in Idrija

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

Per year
2,150 hours
Sunniest month
Jul · 9.4 h a day
Least sunshine
Dec · 2.7 h a day
OctoberSunshine 4.6 hDaylight 11.0 hShare of daylight 42 %
SunshineDaylight

In October, the sun shines for about 4.6 of 11.0 hours of daylight in Idrija, 42 % 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 in Idrija: 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
1,787 mm on 152 days
Wettest month
Nov · 208 mm
Driest month
Feb · 111 mm
OctoberRainy days 13Rainfall 196 mm

In October, Idrija has about 13 rainy days with 196 mm of rain in total.

Sun protection

UV index in Idrija

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 80 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 and clouds in Idrija

How breezy and how cloudy Idrija 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 · 12 km/h
Calmest month
Jan · 10 km/h
OctoberWind 11 km/hBeaufort 2

In October, the wind in Idrija 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
60 % · variable cloud
Clearest month
Aug · 49 %
Cloudiest month
Nov · 70 %
OctoberCloud cover 66 %Sunshine 4.6 h

In October, cloud covers on average 66 % of the sky over Idrija: mostly cloudy, with about 4.6 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 and humidity in Idrija

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

Hot days a year
18 days
Hottest month
Jul · 27 °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 16 °C

In October, Idrija has about 0 hot days, with an average daytime high of 16 °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 in Idrija

Snow is possible in Idrija, but no month makes it likely: 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
12 days
Fresh snow a year
60 cm
Snow possible
Dec – Mar

Snow calendar

  • hardly any
  • possible
  • likely
  • very likely
OctoberDays with fresh snow 0Fresh snow 1 cmChance of snow 3 / 100

In October, it hardly ever snows in Idrija.

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 Idrija

Weather for your travel dates

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

Idrija 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.

Idrija has its best school-holiday weather during the summer holidays (score 77) and its weakest during the Christmas holidays (score 18).

  • Easter holidays

    Mar – Apr

    60

    Good

    • 15 °C by day
    • 6.1 h of sun a day
    • 13 rainy days a month
  • May half-term

    May – Jun

    71

    Good

    • 22 °C by day
    • 7.9 h of sun a day
    • 16 rainy days a month
  • Summer holidays

    Jul – Aug

    77

    GoodBest holidays

    • 27 °C by day
    • 9.0 h of sun a day
    • 13 rainy days a month
  • October half-term

    Oct

    62

    Good

    • 16 °C by day
    • 4.6 h of sun a day
    • 13 rainy days a month

    Keep in mind: Frequent rain

  • Christmas holidays

    Dec – Jan

    18

    Poor

    • 6 °C by day
    • 3.0 h of sun a day
    • 10 rainy days a month

    Keep in mind: Snow

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 2 h
Distance
1,220 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.

Compare & alternatives

Compare

Idrija compared

Put Idrija side by side with another destination.

Nearby:
Compare with home:

Idrija vs Škofja Loka

In October the holiday weather in Idrija and Škofja Loka is about equally good (score 62 vs 63). During the day it is about as warm in Škofja Loka as in Idrija. Škofja Loka gets one hour less sunshine a day.

Idrija vs Škofja Loka, in October
in OctoberIdrijaŠkofja Loka
Holiday weather score6263
Daytime high16°16°
Sunshine5 h4 h
Rainy days1310
Best timeApr – SepApr – Sep

Through the year

OctoberIdrija 16°Škofja Loka 16°
IdrijaŠkofja Loka
Go to Škofja Loka
Ranking

Slovenia in October: the best places

In October, Idrija ranks 13 of 23 destinations in this country.

  1. Brežice17°74
  2. 2Ptuj17°73
  3. 3Murska Sobota16°72
  4. 4Tolmin18°70
  5. 5Kobarid17°70
  6. 6Celje17°67
  7. 7Maribor16°67
  8. 8Bovec16°66
  9. 13IdrijaThis page16°62
All destinations: Slovenia

Near Idrija

Other destinations close by.

Places with a climate like Idrija

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

  1. 86 % similar65CuneoItaly16°Best time: Apr – Jun, Sep – Oct
  2. 85 % similar62ChambéryFrance17°Best time: Apr – Sep
  3. 85 % similar54GenevaSwitzerland16°Best time: May – Sep
  4. 84 % similar56NyonSwitzerland15°Best time: Apr – Sep

Frequently asked questions about Idrija

When is the best time to visit Idrija?

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

What is the warmest month in Idrija?

July is the warmest month, with average highs of 27 °C and nights around 16 °C. January is the coolest month at 5 °C.

When does it rain most in Idrija?

Rain is frequent from October to November; the wettest month is November with 208 mm. The driest month is February with 111 mm.

How many hours of sunshine does Idrija get?

Idrija gets around 2,150 hours of sunshine a year. The sunniest month is July with 9.4 hours a day; in December there are 2.7 hours a day.

What time zone is Idrija in?

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

How long is the flight from London to Idrija?

A nonstop flight from London to Idrija takes about 2 h, for a straight-line distance of about 1,220 km.

Which school holidays are best for Idrija?

Idrija has its best school-holiday weather during the summer holidays (score 77) and its weakest during the Christmas holidays (score 18). Holiday ratings (0–100): Easter holidays 60, May half-term 71, summer holidays 77, October half-term 62, Christmas holidays 18.