Iaşi Weather in May
May in Iaşi averages 23°C (73°F) during the day and 12°C (54°F) at night. Quite a bit of rainfall is typical this month, with around 65 mm (2.6 in) on average. An umbrella is a good idea.
Rainfall in Iaşi in May
Rain is expected on roughly 13 days, totalling around 65 mm (2.6 in) 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 Iaşi in May
The temperature in Iaşi in May is perfect. Daytime highs reach 23°C (73°F), with nights dropping to 12°C (54°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 12°C (54°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Iaşi in May
The month enjoys around 255 hours of sunshine, creating mostly sunny days with good weather conditions.
Wind Speed in Iaşi in May
Average wind speeds reach 3 m/s (6 knots) in May, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.If you're inclined towards comfortable temperatures and drier conditions, May is a good time to visit Iaşi.
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 Iaşi's climate page.
Iaşi Temperature in May
Min Temperature
12°C (54°F)
Max Temperature
23°C (73°F)
Chance of Rain
42%
Precipitation
65 mm (2.6 in)
Rainy days
13 days
Humidity
61%
Windspeed
3 m/s (6 knots)
Sunshine
255 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Iaşi typically stay consistent throughout May, with daily highs averaging around 23°C (73°F). Nights are cool, with lows typically ranging from 9°C (48°F) to 13°C (55°F).
Average temperatures in May
Daily Historical Precipitation
50-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 Iaşi in May
Browse day-by-day weather records for Iaşi spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Iaşi historical weather extremes in May
Based on weather observations in Iaşi between 1976 and 2026, these are the recorded extremes during May.
- The hottest May day on record in Iaşi reached 36°C (97°F) (May 23, 2007).
- Nighttime temperatures dropped to 0°C (32°F) on May 3, 2000, marking the coldest May night on record.
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 Iaşi in May
For Iaşi in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Iaşi 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 Iaşi's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Iaşi climate overview or explore weather in Romania.
