Onna weather in September (Okinawa islands, Japan)
Thinking of visiting Onna in September? Check the weather first! Find out what kind of weather to expect during this month.
Temperatures
The typical weather for September in Onna includes high temperatures and heavy rainfall. September is a notable month of the summer season. Daytime temperatures generally settle around 29°C, while nighttime can see a dip to about 27°C. The average temperatures are warm, but some days will be hotter. Make sure to dress in light, breathable clothing and drink plenty of water.
Precipitation
Onna in September usually receives heavy rainfall, averaging around 199 mm for the month. Records from the past 30 years suggest that around 20 days will experience rain.Average sunshine
With approximately 190 hours hours of sun, the days are filled with brightness. It makes it a perfect month for outdoor activities.If your ideal day consists of dry skies and moderate temperatures January, February, March, April, October, November and December generally stand out with the best circumstances. While May, June and August tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Onna climate page with graphs.
Onna, monthly averages in September
Min Temperature
27°C
Max Temperature
29°C
Chance of Rain
65%
Precipitation
199 mm
Rainy days
20 days
Humidity
76% *
Sunshine
190 hours *
Percentage Sunshine
*
Where to go in Japan in September
Find out more about the weather in Japan and which places have the best travel conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in this month?
It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Interested in more climate information?
This site provides you with all the information you need about the climate in Onna.
Our site offers climate and forecast data for every country in the world. Are you going to Japan? On this website you can find historical weather averages for many cities in Japan. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.
