Sennan Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Sennan.
Climate overview of Sennan
Temperatures in Sennan, Osaka Prefecture, Japan, vary greatly throughout the year. August is the hottest month at 33°C (91°F), while January is the coldest at 10°C (50°F).
Rain/snowfall is high, totalling around 1647 mm (65 in) per year. June is the wettest month and January the driest. August is the sunniest month, averaging 7.6 hours of sunshine per day.
Sennan Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Sennan — and find the best time to visit.
Monthly Temperature in Sennan
The climate in Sennan is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a very warm 33°C (91°F) in August, the warmest time of the year, to a chilly 10°C (50°F) during cooler months like January.
At night, you can expect temperatures ranging from 25°C (77°F) in August to around 3°C (37°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Sennan
Sennan has a notably wet climate with abundant precipitation, recording 1647 mm (65 in) of rain/snowfall per year. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, June it receives heavy rainfall, averaging 233 mm (9.2 in) of precipitation, recorded across 18 rainy days. In contrast, the driest month January brings less rainfall, with 80 mm (3.1 in) over 17 rainy days. For more details, please visit our Sennan 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 Sennan
Seasonal changes in sunshine hours are quite dramatic in Sennan. While August receives considerable daily sunshine with up to 7.6 hours, February marks the darkest time of the year, where sunshine is scarce with only 4.5 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Sennan by Month
The relative humidity is high throughout the year in Sennan.
The city experiences its highest humidity in July, reaching 76%. In March, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Sennan
The wettest months are June, July, September and October, when precipitation is at its highest. Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
Frequently asked questions about the climate in Sennan
What is the best time to visit Sennan?
April, May, October and November typically offer the most optimal weather in Sennan. In contrast, January, July and August tend to have less optimal conditions.
What temperatures can I expect in Sennan?
Daytime highs range from 10°C (50°F) in January to 33°C (91°F) in August. Nighttime lows range from 3°C (37°F) to 25°C (77°F). Temperatures vary considerably through the year.
How much rain does Sennan get?
Annual rainfall is around 1647 mm (65 in). June is the wettest month with 233 mm (9.2 in), while January is the driest with 80 mm (3.1 in).
How sunny is Sennan?
Sennan receives around 2,027 hours of sunshine per year. August is the sunniest month with 228 hours, while February is the cloudiest with just 134 hours. Overall, Sennan enjoys abundant sunshine.
Sennan 3-Day Forecast
Sennan 3-Day Forecast
Sennan on the map
Sennan is highlighted — select any city to see its climate.
Popular this month
Where to go in June — average daytime high across popular destinations.
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