Romans-sur-Isère Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Romans-sur-Isère.
Climate overview of Romans-sur-Isère
The climate in Romans-sur-Isère, Rhône-Alps, France, is marked by large temperature swings across the seasons, ranging from 29°C (84°F) in July to 8°C (46°F) in January.
Romans-sur-Isère sees a moderate amount of rain/snowfall, totalling around 979 mm (39 in) per year. It experiences warm summers and cold winters, creating some seasonal variation. July is the sunniest month, averaging 9.6 hours of sunshine per day.
Romans-sur-Isère Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Romans-sur-Isère - and find the best time to visit.
Monthly Temperature in Romans-sur-Isère
In Romans-sur-Isère, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 29°C (84°F) in July, the warmest time of the year, to a chilly 8°C (46°F) during cooler months like January.
At night, you can expect temperatures ranging from 16°C (61°F) in July to around 0°C (32°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Romans-sur-Isère
On average, Romans-sur-Isère receives a reasonable amount of rain/snowfall, with an annual precipitation of 979 mm (39 in). While rainfall varies throughout the year, each season offers its own charm. November brings wetter days averaging 114 mm (4.5 in) of precipitation, spread over 12 rainy days.
In contrast, the driest month August experiences a drier climate, with about 60 mm (2.4 in) of rainfall spread across 10 rainy days. For more details, please visit our Romans-sur-Isère Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Romans-sur-Isère
Seasonal changes in sunshine hours are quite dramatic in Romans-sur-Isère. While July receives considerable daily sunshine with up to 9.6 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.4 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Romans-sur-Isère by Month
The relative humidity is high throughout the year in Romans-sur-Isère.
The city experiences its highest humidity in November, reaching 84%. In July, the humidity drops to its lowest level at 70%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Romans-sur-Isère
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July, August and September
- Seasonal pattern: Warm summers and cold winters
Frequently asked questions about the climate in Romans-sur-Isère
What is the best time to visit Romans-sur-Isère?
May, June, July, August and September typically offer the most optimal weather in Romans-sur-Isère. In contrast, January, February, November and December tend to have less optimal conditions. Romans-sur-Isère has warm summers and cold winters.
What temperatures can I expect in Romans-sur-Isère?
Daytime highs range from 8°C (46°F) in January to 29°C (84°F) in July. Nighttime lows range from 0°C (32°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Romans-sur-Isère get?
Annual rainfall is around 979 mm (39 in). November is the wettest month with 114 mm (4.5 in), while August is the driest with 60 mm (2.4 in).
How sunny is Romans-sur-Isère?
Romans-sur-Isère receives around 2,076 hours of sunshine per year. July is the sunniest month with 288 hours, while December is the cloudiest with just 73 hours. Overall, Romans-sur-Isère enjoys abundant sunshine.
Romans-sur-Isère 3-Day Forecast
Romans-sur-Isère 3-Day Forecast
Romans-sur-Isère on the map
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