September weather forecastOkidate, Japan
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Okidate, Japan, with an average temperature fluctuating between 14.2°C (57.6°F) and 21.8°C (71.2°F).Temperature
September is marked by a subtle drop in average high-temperatures, transitioning from a warm 26°C (78.8°F) in August to a pleasant 21.8°C (71.2°F). In the month of September, the average temperature dips to a mild 14.2°C (57.6°F) during the night.Humidity
The average relative humidity in September in Okidate, Japan, is 84%.Rainfall
In Okidate, in September, it is raining for 18 days, with typically 98mm (3.86") of accumulated precipitation. Throughout the year, there are 161.5 rainfall days, and 1003mm (39.49") of precipitation is accumulated.Snowfall
In Okidate, snow does not fall in May through September.Daylight
In Okidate, Japan, the average length of the day in September is 12h and 29min.On the first day of September in Okidate, sunrise is at 05:04 and sunset at 18:10. On the last day of the month, sunrise is at 05:32 and sunset at 17:21 JST.
Sunshine
The average sunshine in September is 7.7h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The UV index of 4 during September leads to these advisories:
Act with care - The need to guard against sun damage is communicated. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Okidate, Japan
- Average high temperature in September: 21.8°C
The warmest month (with the highest average high temperature) is August (26°C).
The month with the lowest average high temperature is January (-1.4°C).
- Average low temperature in September: 14.2°C
The month with the highest average low temperature is August (18.2°C).
The coldest month (with the lowest average low temperature) is February (-6.6°C).
Average pressure in September
Okidate, Japan
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is November (1017.5mbar).
The month with the lowest atmospheric pressure is July (1008.9mbar).
Average wind speed in September
Okidate, Japan
- Average wind speed in September: 8.9km/h
The windiest month (with the highest average wind speed) is December (14.8km/h).
The calmest month (with the lowest average wind speed) is July (8.2km/h).
Average humidity in September
Okidate, Japan
- Average humidity in September: 84%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and May (77%).
Average rainfall in September
Okidate, Japan
- Average rainfall in September: 98mm
The wettest month (with the highest rainfall) is July (120mm).
The driest month (with the least rainfall) is May (52mm).
Average rainfall days in September
Okidate, Japan
- Average rainfall days in September: 18 days
The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is January (3.5 days).
Average snowfall in September
Okidate, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (562mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Okidate, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (26.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Okidate, Japan
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 7h and 42min
The months with the most sunshine are May and August (Average sunshine: 8h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in September
Okidate, Japan
- Average sunshine days in September: 10 days
The month with the most sunshine days is May (15.3 days).
The month with the least sunshine days is January (3.7 days).
Average UV index in September
Okidate, Japan
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Okidate, Japan
- Average cloud cover in September: 43
The month with the most cloud cover is January (Cloud cover 84).
The month with the least cloud cover is May (Cloud cover 42).
Average visibility in September
Okidate, Japan
- Average visibility in September: 8km
The months with the highest visibility are April, May, October and November (9km).
The months with the lowest visibility are January, February, July and August (7km).
