Croatia (Istria) · May
Low seasonCroatia · Europe
Climate Overview
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MAXMAX | 10° | 11° | 14° | 18° | 22° | 27° | 30° | 30° | 25° | 20° | 15° | 12° |
MINMIN | 2° | 3° | 5° | 8° | 12° | 17° | 19° | 19° | 16° | 12° | 8° | 4° |
☀️Sunshine | 3h UV 3 | 4h UV 4 | 6h UV 5 | 7h UV 6 | 7h UV 7 | 9h UV 8 | 9h UV 8 | 8h UV 7 | 6h UV 6 | 5h UV 4 | 3h UV 3 | 3h UV 2 |
🌊Water Temp | 13° | 12° | 12° | 14° | 18° | 22° | 24° | 25° | 22° | 20° | 17° | 15° |
🌧Rain Days | 6d73mm | 7d82mm | 6d67mm | 6d57mm | 7d81mm | 4d51mm | 3d39mm | 5d67mm | 6d108mm | 6d80mm | 8d144mm | 7d108mm |
Best travel time current monthMonthly averages 2005–2025 · Source: ERA5 + station data
Still off-season — flights and hotels significantly cheaper than in June.
May in Croatia (Istria) at 22°C is too cool for a beach holiday, but suitable for sightseeing and hiking. The best travel months are June, July, August, and September.
Daytime temperatures reach up to 22°C, cooling to 12°C at night (daily average: 17°C). The sun shines an average of 7 hours per day; there are 7 rain days with 81 mm total. At 17°C, the water is still quite cool in May — a wetsuit may be useful.
A jacket for cool evenings should not be left behind. Sightseeing and excursions can be enjoyed at this time of year without the heat.
Packing list for Croatia (Istria) in May
- Langarmhemden und leichte Hosen
- Leichte Jacke
- Sonnencreme
- Sonnenbrille
- Leichter Regenschirm oder Regenponcho
- Reiseapotheke
Frequently Asked Questions
- Is May a good time to visit Croatia (Istria)?
- May is not an optimal month for Croatia (Istria) (Score: 60/100), but it is manageable. For better conditions, consider June, July, August, and September.
- How warm is it in Croatia (Istria) in May?
- In May, Croatia (Istria) sees daily highs of 22°C. Nights cool to 12°C, with a daily average of 17°C.
- How much rain falls in Croatia (Istria) in May?
- In May, Croatia (Istria) receives an average of 81 mm of rain over 7 rain days. An umbrella may occasionally be needed.
- How many sunshine hours does Croatia (Istria) get in May?
- Croatia (Istria) averages 7 sunshine hours per day in May — above the annual average.
- How warm is the water in Croatia (Istria) in May?
- Water temperature in Croatia (Istria) in May averages 17°C — still quite cool — a wetsuit may be useful.
