Jupiter Weather & Climate: Best Time to Visit

Temperatures in Jupiter, Constanţa, Romania, vary greatly throughout the year. August is the hottest month at 29°C (84°F), while January is the coldest at 6°C (43°F).

Jupiter sees a moderate amount of rain/snowfall, totalling around 563 mm (22 in) per year. It experiences a distinct dry season from July to August, creating some seasonal variation. The sunniest month is July, with 10.9 hours of sunshine per day on average.

Monthly Temperature in Jupiter

The climate in Jupiter is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a comfortable 29°C (84°F) in August, the warmest time of the year, to a chilly 6°C (43°F) during cooler months like January.

At night, you can expect temperatures ranging from 21°C (70°F) in August to around 1°C (34°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Jupiter

Generally, Jupiter receives mid-range precipitation levels, with 563 mm (22 in) annually. While rainfall varies throughout the year, each season offers its own charm. October brings wetter days averaging 58 mm (2.3 in) of precipitation, spread over 7 rainy days.

In contrast, the driest month August experiences a drier climate, with about 34 mm (1.3 in) of rainfall spread across 5 rainy days. For more details, please visit our Jupiter 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 Jupiter

Seasonal changes in sunshine hours are quite dramatic in Jupiter. While July receives considerable daily sunshine with up to 10.9 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.7 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Constanţa, Romania (39 KM, 24 Miles).

Daily hours of sunshine

Data from: Constanţa, Romania (39 KM, 24 Miles).

Humidity in Jupiter by Month

The city experiences its highest humidity in December, reaching 88%. In July, the humidity drops to its lowest level at 76%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year

Data from: Constanţa, Romania (39 KM, 24 Miles).

Jupiter 3-Day Forecast

10-Day Forecast

Select a Month

Check the conditions for any month of the year.

Best Time to Visit Jupiter

Jupiter's weather is most enjoyable during May, June, July, August, September and October, with comfortable temperatures from 19°C (65°F) to 29°C (83°F). The moderate conditions ensure pleasant weather for exploring the area. Expect varied weather during this period with rainfall between 34 mm (1.3 in) and 58 mm (2.3 in), providing a good balance of sunny and rainy days.

Seeking the perfect travel destination for this year? We've created a tool that suggests locations matching your desired weather. Let our weather planner guide your travel decisions.