Average temperatures, rainfall, sunshine and the best time to visit Onești.
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10-day forecastForecast
Temperatures in Onești, Bacău, Romania, vary greatly throughout the year. July is the hottest month at 27°C (81°F), while January is the coldest at 2°C (36°F).
With around 761 mm (30 in) of annual rain/snowfall, the city has moderate precipitation levels. June is the wettest month and January the driest. It also has warm summers and cold winters.
Pick a month to see the average temperature, rainfall and sunshine in Onești - and find the best time to visit.
The climate in Onești is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 27°C (81°F) in July to a chilly 2°C (36°F) in the coolest month, January.
Nights vary from 15°C (59°F) in July to around -6°C (21°F) during the colder months.
Check out our detailed temperature page for more information.
Generally, Onești receives mid-range precipitation levels, with 761 mm (30 in) annually. The climate in Onești shows significant variation throughout the year. Expect high rainfall in June, the wettest month, with an average of 110 mm (4.3 in) of precipitation over 14 rainy days.
In contrast, the driest month January offers drier and sunnier days, with around 40 mm (1.6 in) of snow/rainfall over 12 snowy/rainy days. For more details, please visit our Onești Precipitation page.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
May, July, August and September typically offer the most optimal weather in Onești. In contrast, January, February, March, November and December tend to have less optimal conditions. Onești has warm summers and cold winters.
Daytime highs range from 2°C (36°F) in January to 27°C (81°F) in July. Nighttime lows range from -6°C (21°F) to 15°C (59°F). Temperatures vary considerably through the year.
Annual rainfall is around 761 mm (30 in). June is the wettest month with 110 mm (4.3 in), while January is the driest with 40 mm (1.6 in).
Onești is highlighted - select any city to see its climate.
Where to go in October - average daytime high across popular destinations.
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