Weather in Bucharest

Rain is about 615 mm of rain spread through the year. The wettest month is June at 79 mm; the driest is February at 34 mm.

Bucharest is in Romania at 44.4°N. The 2001–2020 NASA POWER daily record describes a continental climate with a wide temperature swing. August is the warmest month (average 25.1°C, high 31.8°C) and January is the coolest (average -1.1°C, low -4.7°C). On this site the months that score closest to a 22°C day, lighter rain, and moderate humidity are June, August, and September.

Hot and cool months in Bucharest

The heat peaks in August, when the typical afternoon is 31.8°C. The opposite pole is January, when mornings average -4.7°C.

Across the year the mean afternoon high is 18.0°C. If you want the smallest day–night shock, look at months where the high and low sit close together; August nights still hold 18.3°C.

Rainfall pattern

Annual rainfall is 615 mm. June leads at 79 mm; February is lightest at 34 mm.

Humidity peaks near 88%. That usually lines up with the wetter months rather than the hottest ones.

What stands out month by month

The year bottoms out in January. Plan for -4.7°C at night and 2.6°C in the afternoon. February is the driest month, averaging only 34 mm across 7 rainy days. Highs sit near 6.1°C. March brings 39 mm and 8 rainy days; temperatures run from 1.2°C to 12.4°C. In April, Bucharest averages 18.3°C by day and 5.9°C at night, with 43 mm of rain. May: 24.0°C high, 11.6°C low, 65 mm rain, 67% humidity. June is the wettest month — 79 mm and 13 rainy days, with 62% humidity.

August is the warmest month. Afternoon highs average 31.8°C and nights settle near 18.3°C, with 46 mm of rain. September: 26.2°C high, 13.4°C low, 52 mm rain, 59% humidity. October brings 56 mm and 7 rainy days; temperatures run from 7.4°C to 18.8°C. November stands apart from the months beside it: 11.6°C / 2.7°C and 42 mm. December: 4.5°C high, -2.5°C low, 48 mm rain, 88% humidity.

When the score favours a visit

The three months with the highest comfort score are June, August, and September: June (22.2°C average, 79 mm, 62% humidity); August (25.1°C average, 46 mm, 53% humidity); September (19.8°C average, 52 mm, 59% humidity). They fall in calendar order. The score rewards averages near 22°C, lower rainfall, and humidity near 60%. It is a climate score, not a festival or price calendar.

If you prefer the hottest stretch, that is August. The coolest stretch is January.

Bucharest and other cities in Romania

Bucharest is the only Romania city in this dataset, so the figures on this page are the national sample we publish. They still come from the same NASA POWER daily series (2001–2020) used everywhere else on the site.