May
Weather in May
May presents a taste of summer in Piran, Slovenia, a month ahead of summer's official arrival. The dramatic increase in sea temperature, accelerating to 18°C (64.4°F), announces the onset of the sunny season. Daily hours of sunlight continue to extend, heralding longer, warmer days. Moving towards June, each day undergoes a small rise in temperature, intensifying the hints of summer. May is when summer starts to creep in, subtly intruding into the last remnants of spring.
Note: Most people do not enjoy swimming in water that is 18°C (64.4°F). Breathing becomes increasingly challenging as the water temperature dips under 21°C (69.8°F).
On the first day of May in Piran, Slovenia, sunrise is at 05:52 and sunset at 20:12. On the last day of the month, sunrise is at 05:20 and sunset at 20:46 CEST.
Sea temperature
In Piran, the average seawater temperature in May is 18°C (64.4°F).Note: Most people do not enjoy swimming in water that is 18°C (64.4°F). Breathing becomes increasingly challenging as the water temperature dips under 21°C (69.8°F).
Daylight
In Piran, the average length of the day in May is 14h and 55min.On the first day of May in Piran, Slovenia, sunrise is at 05:52 and sunset at 20:12. On the last day of the month, sunrise is at 05:20 and sunset at 20:46 CEST.
Updated: Jan 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the sea water temperature in May in Piran?
In Piran, Slovenia, in May, the average water temperature is 18°C (64.4°F). Swimming in 18°C (64.4°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).
What is the average length of the day in May in Piran?
The average day length in May is 14h and 55min.
What time are sunrise and sunset in May in Piran?
On the first day of May, sunrise is at 05:52 and sunset at 20:12. On the last day of the month, sunrise is at 05:20 and sunset at 20:46 CEST.
Average sea temperature in May
Piran, Slovenia
- Average sea temperature in May: 18°C
The best months for swimming (with the highest average sea temperature) are July and August (24.8°C).
The coldest month (with the lowest average sea temperature) is February (9.3°C).
Average daylight in May
Piran, Slovenia
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
