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Weather in Predjama - 14-day forecast

Detailed weather forecast for Predjama, Slovenia: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Predjama
today🌧️ 26°💧 0.2 mm
Sun☀️ 24°💧 0.6 mm
Mon☀️ 26°💧 1.2 mm
Tue🌧️ 29°💧 0.3 mm
Wed🌧️ 24°💧 10 mm
Thu🌧️ 13°💧 32.9 mm
Fri☁️ 19°💧 3 mm
Sat☁️ 23°💧 2.3 mm
Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Tuesday 8 Sept in Predjama, the forecast high is 29°C. Typical daytime temperatures at this time of year range from 19°C to 25°C, so it will be exceptionally warm. It is warmer than 100% of similar days.

26°Cwarmer than usual
usually 19°C–25°C
warmer than 87% of similar days
night: exceptionally warm rain: typical rainfall wind: typical
24°Cwarmer than usual
usually 19°C–25°C
warmer than 75% of similar days
night: exceptionally warm rain: typical rainfall wind: exceptionally strong
26°Cwarmer than usual
usually 19°C–25°C
warmer than 87% of similar days
night: exceptionally warm rain: typical rainfall wind: typical
29°Cexceptionally warm
usually 19°C–25°C
warmer than 100% of similar days
night: exceptionally warm rain: typical rainfall wind: lighter than usual
24°Cwarmer than usual
usually 18°C–25°C
warmer than 71% of similar days
night: exceptionally warm rain: more rain than usual wind: exceptionally strong
13°Cexceptionally cool
usually 18°C–25°C
cooler than 97% of similar days
night: near normal rain: exceptionally wet wind: stronger than usual
19°Cnear normal
usually 18°C–25°C
night: near normal rain: more rain than usual wind: stronger than usual

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →
15°23°30° 1981: 20°C1982: 23°C1983: 22°C1984: 19°C1985: 20°C1986: 19°C1987: 21°C1988: 22°C1989: 19°C1990: 21°C1991: 23°C1992: 21°C1993: 19°C1994: 23°C1995: 20°C1996: 17°C1997: 25°C1998: 22°C1999: 23°C2000: 21°C2001: 19°C2002: 22°C2003: 21°C2004: 23°C2005: 22°C2006: 24°C2007: 19°C2008: 26°C2009: 20°C2010: 19°C2011: 26°C2012: 26°C2013: 23°C2014: 20°C2015: 19°C2016: 23°C2017: 19°C2018: 24°C2019: 19°C2020: 24°C2021: 23°C2022: 25°C2023: 23°C2024: 23°C2025: 22°C 2026 forecast: 23°C current forecast 23°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 22°C by day. The coolest year was 1996 (17°C) and the warmest was 2008 (26°C). The current forecast averages 23°C - higher than in 73% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

Weather warnings - Predjama

No active weather warnings for Predjama (region: Southwest). The national weather service is not forecasting dangerous conditions.

14-day forecast - Predjama

Predjama - 14-day weather forecast infographic

Predjama 30 & 45-day weather - long-range outlook

Next 16 days · forecast
21°
around 13° at night · days with rain: 9
Weeks 3-4 · avg for September
25°
around 17° at night · rain chance 32%
Weeks 5-7 · avg for October
19°
around 13° at night · rain chance 43%
The 30 & 45-day outlook for Predjama: the next 16 days are a numerical forecast updated daily - on average 21° by day and 13° at night. Further out we rely on multi-year climate averages: around 25° in September, and about 19° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Predjama

Saturday5 September 2026
🌧️26°light rain
sunrise 06:29 · sunset 19:35 · night 18° · evening 23° · rain 0.16 mm · humidity 42% · wind 2 m/s · clouds 67%
Sunday6 September 2026
☀️24°clear sky
sunrise 06:30 · sunset 19:33 · night 14° · evening 22° · rain 0.6 mm · humidity 47% · wind 5 m/s · clouds 5%
Monday7 September 2026
☀️26°clear sky
sunrise 06:31 · sunset 19:31 · night 18° · evening 21° · rain 1.22 mm · humidity 43% · wind 2 m/s · clouds 9%
Tuesday8 September 2026
🌧️29°light rain
sunrise 06:32 · sunset 19:29 · night 16° · evening 18° · rain 0.32 mm · humidity 31% · wind 2 m/s · clouds 12%
Wednesday9 September 2026
🌧️24°moderate rain
sunrise 06:34 · sunset 19:27 · night 15° · evening 16° · rain 9.96 mm · humidity 53% · wind 3 m/s · clouds 99%
Thursday10 September 2026
🌧️13°moderate rain
sunrise 06:35 · sunset 19:25 · night 11° · evening 12° · rain 32.88 mm · humidity 97% · wind 3 m/s · clouds 100%
Friday11 September 2026
☁️19°overcast clouds
sunrise 06:36 · sunset 19:24 · night 12° · evening 14° · rain 3.03 mm · humidity 57% · wind 3 m/s · clouds 88%
Saturday12 September 2026
☁️23°overcast clouds
sunrise 06:37 · sunset 19:22 · night 14° · evening 15° · rain 2.31 mm · humidity 51% · wind 3 m/s · clouds 85%
Sunday13 September 2026
☁️15°overcast clouds
sunrise 06:39 · sunset 19:20 · night 10° · evening 13° · rain 1.05 mm · humidity 90% · wind 3 m/s · clouds 100%
Monday14 September 2026
☁️15°broken clouds
sunrise 06:40 · sunset 19:18 · night 10° · evening 18° · rain 41.19 mm · humidity 71% · wind 4 m/s · clouds 55%
Tuesday15 September 2026
☀️20°clear sky
sunrise 06:41 · sunset 19:16 · night 13° · evening 22° · rain 2.52 mm · humidity 55% · wind 3 m/s · clouds 16%
Wednesday16 September 2026
🌤️21°scattered clouds
sunrise 06:42 · sunset 19:14 · night 15° · evening 22° · rain 21.51 mm · humidity 64% · wind 5 m/s · clouds 30%
Thursday17 September 2026
🌧️19°light rain
sunrise 06:44 · sunset 19:12 · night 14° · evening 22° · rain 0.48 mm · humidity 73% · wind 4 m/s · clouds 42%
Friday18 September 2026
☀️21°clear sky
sunrise 06:45 · sunset 19:10 · night 15° · evening 24° · humidity 59% · wind 3 m/s · clouds 6%
Saturday19 September 2026
☀️23°clear sky
sunrise 06:46 · sunset 19:08 · night 5° · evening 26° · humidity 53% · wind 3 m/s · clouds 3%
Sunday20 September 2026
☀️11°clear sky
sunrise 06:47 · sunset 19:06 · night 14° · evening 14° · humidity 53% · wind 6 m/s

UV index in Predjama - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTPredjama03681111+5.7UV MODERATEtoday, daily maxSeek shade around midday. SPF 30+, sunglasses and ahat for longer stays.Unprotected fair skin may burn in about 35 min6Sat5.096Sun6.096Mon7.096Tue8.096Wed9.094Thu10.094Fri11.095Sat12.094Sun13.095Mon14.095Tue15.095Wed16.093Thu17.090Fri18.094Sat19.095Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Predjama is 6 (moderate) - unprotected fair skin can burn in about 35 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.

Pollen in Predjama - info for allergy sufferers

PLANT POLLEN · 4-DAY FORECASTPredjamaHighest pollen today: Ragweed18 grains/m³ · moderate leveltoday5.09tomorrow6.09Mon7.09Tue8.09Grasses1-1-Mugwort--11Ragweed1834295nonelowmoderatehighvery highoff season: alder, birch, olive · values in grains/m³ (daily peak)pogodapodroze.pl · 2026-09-05
Today ragweed pollen is highest in Predjama - about 18 grains/m³, moderate level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.

Predjama weather through the year

Predjama - annual climate

Warmest, driest months on average: April, May, June, July.

Upcoming public holidays in Slovenia: Reformation Day — 31 October · Day of the Dead — 1 November · Christmas Day — 25 December.

Nearby and related places

LjubljanaKoperKranjŠmartno pri LitijiNovo MestoKlagenfurtPtujMariborVelenje

FAQ - Predjama weather

What is the weather like in Predjama today?
Today it is about 26° during the day and 18° at night, light rain.
How far ahead can I check the forecast for Predjama?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.