Onești Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Onești.
Climate overview of Onești
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.
Onești Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Onești - and find the best time to visit.
Monthly Temperature in Onești
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.
Temperature ranges by month
Rainfall in Onești
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.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Onești
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, July, August and September
- Warmest weather: July and August
- Fewest rainy days: September and October
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -6°C (21°F).
Frequently asked questions about the climate in Onești
What is the best time to visit Onești?
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.
What temperatures can I expect in Onești?
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.
How much rain does Onești get?
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 3-Day Forecast
Onești on the map
Onești is highlighted - select any city to see its climate.
Popular this month
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24°C (75°F) 
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