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Ljubljana in May: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Ljubljana in May will be like? Take a look at our weather guide for Ljubljana, based on historical data.
Check flight prices to Ljubljana on Avionero:
May

Weather in Ljubljana in May 2025

Good Weather
Mild
🌧️
Rainy
Planning a trip to Ljubljana in May? You are in luck! The weather is generally good, with an average maximum temperature of +70°F and approximately 5 sunny days. Just be prepared for some rain, as there are usually around 15 rainy days and 112 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+70°F
Avg. max. temperature
+32°F
Min.
+88°F
Max.
112 mm
Total precipitation
71%
Avg. humidity
1 m/s
Avg. wind
5 ☀️
Sunny Days
6 ⛅️
Cloudy
15 🌦
Rainy
Our opinion: Ljubljana has good weather in May.

Average temperature in Ljubljana in May

Here are the expected maximum, average and minimum temperatures in Ljubljana for May based on the historical data.
Last Year
Historical Data

Going from a maximum of +84°F during the day to a minimum of +43°F during the night, the temperature in May averages around +68°F.

The average maximum temperature goes up 13% by the end of the month, compared with the beginning of the month, from +64°F to +70°F.

Is Ljubljana warm or cold in May?

Ljubljana is typically mild in May.

Maximum temperatures go up compared to the previous month from +61°F to +70°F. The minimum temperature also goes up from +43°F to +52°F.

Pack a light jacket as it will be warm in the day and cool in the evenings.

Take a look at how May is compared to other months in Ljubljana:

Climate in Ljubljana in May

Ljubljana weather looks like this, on average, in May and the surrounding months.
AprilMayJune
Avg. temperature
+61°F+70°F+77°F
Min. temperature
+23°F+32°F+41°F
Max. temperature
+84°F+88°F+97°F
Rainfall
91 mm112 mm117 mm
Wind
1 m/s1 m/s1 m/s
Humidity
70%71%72%
Air pressure
1013 HPa1014 HPa1015 HPa
Sunny days
655
Cloudy days
665
Rainy days
161512
Snowy days
000

May weather is still as good as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +61°F to +70°F during the day. Prepare for more rain. Average rainfall goes from 91 mm to 112 mm. Humidity rises from 70% to 71%. The average wind speed doesn’t change much during May, staying around 1 m/s. The days becoming less sunny, going from 6 sunny days in April to 5 in May.

June brings much the same weather, it remains good.

Wind

Wind speed in Ljubljana in May based on historical data.
Last Year
Historical Data

The average wind speed is 1 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Ljubljana is gradually decreasing during May, going from 2 m/s to 1 m/s over the course of the month.

Rain

Amount of rainfall in mm during May in Ljubljana based on historical data.
Last Year
Historical Data
Typically, there is a 68% chance of rain on an average day in May, with total rainfall of approximately 172 mm. The maximum amount of rainfall per day is around 23 mm, which is considered light rain. May is a pretty wet month with over 21 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how May is compared with other months in the amount of precipitation, total mm:
Ljubljana wettest month is September, where a typical day has a 37% chance of precipitation and 125 mm of rainfall per day. January, on the other hand, is the driest month with a mere 16% chance of precipitation and 44 mm of rainfall per day.

How was the weather last May in Ljubljana?

This is the weather in Ljubljana in May 2023:
1 May
☁️
+65°F
2 May
🌧️
+57°F
3 May
☁️
+61°F
4 May
☀️
+71°F
5 May
☀️
+77°F
6 May
☀️
+79°F
7 May
☁️
+78°F
8 May
☁️
+58°F
9 May
☁️
+64°F
10 May
🌧️
+57°F
11 May
🌧️
+53°F
12 May
🌧️
+56°F
13 May
🌧️
+59°F
14 May
🌧️
+55°F
15 May
🌧️
+70°F
16 May
🌧️
+56°F
17 May
🌧️
+56°F
18 May
☁️
+64°F
19 May
☁️
+61°F
20 May
☁️
+72°F
21 May
☀️
+79°F
22 May
☀️
+82°F
23 May
☀️
+85°F
24 May
☁️
+68°F
25 May
☀️
+78°F
26 May
☁️
+79°F
27 May
☀️
+78°F
28 May
☀️
+78°F
29 May
☀️
+79°F
30 May
☁️
+76°F
31 May
🌧️
+69°F
In May 2023 Ljubljana had 10 sunny days, 11 cloudy days, and 10 rainy days. The average maximum temperature was +68°F, with an absolute maximum of +84°F and a minimum of +54°F. The average humidity was 78%, with a maximum of 100% and a minimum of 38%. The average wind speed was 1 m/s, with a maximum of 7 m/s and a minimum of 0 m/s.
Are you planning a trip in May?

Climate Change Over the Years

This is how Ljubljana climate has changed over the last 43 years.

The climate in Ljubljana in May has not changed that much over the last 43 years.

The average temperature was the lowest in 1980 (+56°F) and the highest in 2022 (+64°F). The driest year was 2011 with only 724 mm of rainfall, and the wettest year was 2023 with 1873 mm.

FAQ

Frequently asked questions about the weather in Ljubljana in May:

Is May a good time to visit Ljubljana?

May is a really good time to go to Ljubljana. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Ljubljana.

Can you sunbathe in Ljubljana in May?

May has mild temperatures in Ljubljana. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Is Ljubljana rainy in May?

Ljubljana is often rainy in May. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Ljubljana in May?

Usually, it’s not very sunny in Ljubljana in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Monthly weather in Ljubljana

Source of the data

For this page, we’ve looked at the typical weather in Ljubljana, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.