- Book early & save on holidays for solo travellers in 2025
- Destinations include cities across Portugal & the USA
- Filter offers by travel dates, price, holiday type & more
Portoroz weather in May 2025
Expect 22°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Portoroz in May. Check more long-term weather averages for Portoroz in May before you book your next holiday to Slovenia in 2025/2026.
- 2222°C max day temperature
- 7 hours of sunshine per day
- 1414 days with some rainfall
- 1212°C min night temperature
- 1515 hours of daylight per day
- 0No heat & humidity
- 9898 mm of monthly rainfall
- 77 (High) UV index
- 1818°C sea temperature
More about Portoroz
- Overview
- Best time to visit
- Weather by month
- 5-day weather forecast
- Destinations
- Travel advice
- Deals & discounts
Portoroz by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Slovenia
The May weather guide for Slovenia (Portoroz) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about Slovenia
How hot is it in Portoroz in May?
Daytime temperatures usually reach 22°C in Portoroz in May, falling to 12°C at night.
How sunny is it in Portoroz in May?
There are normally 7 hours of bright sunshine each day in Portoroz in May - that's 49% of daylight hours.
How warm is the sea around Portoroz in May?
The average sea temperature around Portoroz in May is 18°C.
Does it rain in Portoroz in May?
There are usually 14 days with some rain in Portoroz in May and the average monthly rainfall is 98mm.
Portoroz May sunrise & sunset times
Browse the sunrise and sunset times for Portoroz in May 2025. Select a month to view Portoroz sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Thursday, 1st May 2025 | 04:54 | 19:13 |
Friday, 16th May 2025 | 04:34 | 19:31 |
Saturday, 31st May 2025 | 04:21 | 19:46 |
Be inspired
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Related posts
Popular travel offers
Explore holidays in the sun for less
- Beach holidays
- Family holidays
- City breaks
- Summer holidays
- Winter sun holidays
- Holiday offers
- Top travel brands
- Airlines & flights
- Discount hotels
- Airport parking deals
- TUI
- Jet2holidays
- easyJet holidays
- Love Holidays
- Boxing Day sales
Airport parking
- Manchester Airport
- Stansted Airport
- Bristol Airport
- Luton Airport
- Birmingham Airport
- Edinburgh Airport
- Gatwick Airport
- Glasgow Airport
- Newcastle Airport
Airport lounges
- Manchester Airport
- Birmingham Airport
- Bristol Airport
- Edinburgh Airport
- Glasgow Airport
- Heathrow Airport
- Newcastle Airport
- Stansted Airport
- Gatwick Airport