Lake Bled weather in short
Summer highs average 25 °C in July, and January nights average minus 5.6 °C. It rains in every month, with the most in autumn. The table below uses climate averages of the station at Lesce, a nearby town at 515 m, for the years 1981 to 2010. These are averages of a past period, not a forecast, and the lakeshore and the summits can differ from the station.
Plan around the season, not around one number. Boats, the lido and the gorge all depend on weather, so check the sky on the day. If you are choosing a date, the page on the best time to visit Lake Bled turns these figures into a plan, and a pletna ride to the island works best on a dry day.
Monthly climate averages
Average daily high and low in °C and average monthly rain in mm. Station Lesce, 515 m, 1981 to 2010.
| Month | High °C | Low °C | Rain mm |
|---|---|---|---|
| January | 3.0 | −5.6 | 63 |
| February | 5.3 | −4.7 | 64 |
| March | 9.8 | −0.9 | 90 |
| April | 14.4 | 3.3 | 106 |
| May | 19.6 | 8.0 | 108 |
| June | 22.7 | 11.5 | 135 |
| July | 25.3 | 13.3 | 132 |
| August | 24.8 | 13.2 | 137 |
| September | 19.9 | 9.3 | 152 |
| October | 14.6 | 5.2 | 157 |
| November | 8.1 | 0.1 | 157 |
| December | 3.6 | −3.8 | 119 |
For most travellers who want warm days, June to August fits best. May and September are milder, and September already brings more rain. Pack a rain layer in any month. December has on average 11 mornings with snow cover, but snow is not guaranteed, so do not plan a trip around it.
Our pick: a guided morning
Mornings are often the calmest time at the lake; this small-group trip starts there.
Hand-picked tours, booked through GetYourGuide. Prices are indicative starting prices in euros (as of October 2026). Tap a tour for live availability and the current price in your currency.
Lake Bled tours for any weather
Day trips from Ljubljana, island visits and combinations with Bohinj and Postojna, with live prices and availability.
Water temperature
Lake water is much slower to change than the air.
Summer
In summer the lake warms up to 25 °C. That is the figure for the warmest weeks, not an average for the whole season. The temperature varies from year to year, so do not count on a given temperature in June or September.
Winter
In winter the water can fall to 4 °C. Do not assume the lake is safe to walk on or that it freezes every year. Stay on the shore paths.
Swimming
The lido season, prices and the three bathing areas are in the swimming guide. The lido closes when it rains.
What the weather changes on site
The weather decides what is open, and you can plan for it. Pletna boats leave when they are full and run on shorter hours from November to March, 10 a.m. to 3 p.m. Do not count on a boat in bad weather. The castle is open until 6 p.m. in winter and until 8 p.m. from April to October.
Vintgar Gorge stays open in rain, as rain alone is not a reason to close. Extreme weather can close it. The Savica waterfall can close in heavy rain, thunderstorms, snow, ice, high water or rockfall risk. The paths to Ojstrica and the Osojnica peaks are steep forest ascents of 20 to 45 minutes, so wear sturdy shoes and go up only when the sky is stable. More in the hiking guide.
Weather by season
What to expect and what to pack.
Spring, March to May
Highs rise from 9.8 °C in March to 19.6 °C in May, and nights stay close to freezing early in the season. Rain is common, with 90 to 108 mm per month. Bring layers and waterproof shoes.
Summer, June to August
Highs of 23 to 25 °C and nights above 11 °C. It is also a rainy season, with 132 to 137 mm per month, often as showers. Bring a light rain jacket and sun protection.
Autumn, September to November
Highs fall from 19.9 °C to 8.1 °C and rain peaks at 152 to 157 mm. The hills turn autumn colours. Check rail replacement services in autumn 2026 before you travel.
Winter, December to February
Highs of 3.0 to 5.3 °C and nights down to minus 5.6 °C. Dress warm and plan for short days. The December guide covers the winter programme.
Lake Bled weather: frequently asked questions
What is the warmest month at Lake Bled?
July, with an average high of 25.3 °C. August follows with 24.8 °C. These are averages of a past period, so single days can be warmer or cooler.
When does it rain most?
October and November, with 157 mm each on average. Even the driest months have 63 to 64 mm.
How warm is the lake water?
Up to 25 °C in summer and down to 4 °C in winter. There is no guaranteed temperature for a given month.
Does it snow in December?
On average 11 mornings in December have snow cover, but snow is not guaranteed in any year.
Does bad weather cancel the pletna and the gorge?
Pletna boats leave when full and depend on conditions. Vintgar Gorge stays open in rain and closes in extreme weather. Check the day before.
Is this the official site of Bled?
No. This is an independent travel guide. It is not the official website of Bled, Turizem Bled or the Slovenian Tourist Board, and it is not connected to any tour operator or hotel.