Neptun Weather in May
During May, Neptun experiences pleasant daytime temperatures of 21°C (70°F) and cooler nights around 14°C (57°F). Some rainfall is typical during this period.
Rainfall in Neptun in May
You can expect rain on around 9 days based on historical patterns, with 43 mm (1.7 in) average for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Neptun in May
May is one of the better months to visit Neptun. Expect 21°C (70°F) during the day and 14°C (57°F) at night. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights cool down to 14°C (57°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Neptun in May
With approximately 273 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.If you're inclined towards comfortable temperatures and drier conditions, May is a good time to visit Neptun.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Romania, check out our Neptun's climate page.
Neptun Temperature in May
Min Temperature
14°C (57°F)
Max Temperature
21°C (70°F)
Chance of Rain
29%
Precipitation
43 mm (1.7 in)
Rainy days
9 days
Humidity
81% *
Sunshine
273 hours *
Percentage Sunshine
*
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Neptun typically rise from around 18°C (64°F) at the start of May to approximately 22°C (72°F) by the end. Nights are cool, with lows typically ranging from 9°C (48°F) to 14°C (57°F).
Average temperatures in May
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Neptun in May
Browse day-by-day weather records for Neptun spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Neptun historical weather extremes in May
Our historical data for Neptun spans 1997 to 2026, revealing these weather extremes.
- On May 9, 2003, temperatures climbed to 32°C (90°F), marking the warmest May day on record.
- On May 2, 2007, Neptun saw its coldest May day with temperatures maxing out at 11°C (52°F).
- The coldest night in May in Neptun was on May 4, 2000, with a minimum of 1°C (34°F).
Best Places in Romania in May
Find out more about the weather in Romania and which places have the best travel conditions in this month. See all of Romania in May →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Neptun in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Neptun in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Romania, check out our Neptun's climate page.
Temperature Rainfall Sunshine Humidity
See the full Neptun climate overview or explore weather in Romania.
