September weather forecastMomonai, Japan
September weather forecast for Momonai, Japan: September, the first month of the autumn in Momonai, is still a refreshing month, with an average temperature ranging between min 13.2°C (55.8°F) and max 19.5°C (67.1°F). In Momonai, during September, the rain falls for 18.3 days and regularly aggregates up to 86mm (3.39") of precipitation.
September
Weather in September
September, the first month of the autumn in Momonai, is still a refreshing month, with an average temperature ranging between min 13.2°C (55.8°F) and max 19.5°C (67.1°F).Temperature
Momonai's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's warm 23°C (73.4°F) to an enjoyable 19.5°C (67.1°F). Throughout the month of September, the nighttime temperature dips to an average of 13.2°C (55.8°F).Humidity
The average relative humidity in September is 83%.Rainfall
In September, the rain falls for 18.3 days. Throughout September, 86mm (3.39") of precipitation is accumulated. In Momonai, during the entire year, the rain falls for 151.8 days and collects up to 851mm (33.5") of precipitation.Snowfall
In Momonai, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 05:00 and sunset at 18:11. On the last day of September, sunrise is at 05:32 and sunset at 17:19 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 radiation for the ordinary person.Note: The UV index of 4 in September translates into these instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Momonai, Japan
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (23°C).
The month with the lowest average high temperature is January (-3.3°C).
- Average low temperature in September: 13.2°C
The month with the highest average low temperature is August (16.8°C).
The coldest month (with the lowest average low temperature) is February (-8.2°C).
Average pressure in September
Momonai, Japan
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is November (1016.1mbar).
The month with the lowest atmospheric pressure is July (1008.5mbar).
Average wind speed in September
Momonai, Japan
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is December (19km/h).
The calmest month (with the lowest average wind speed) is July (9.2km/h).
Average humidity in September
Momonai, Japan
- Average humidity in September: 83%
The month with the highest relative humidity is July (88%).
The months with the lowest relative humidity are April and October (79%).
Average rainfall in September
Momonai, Japan
- Average rainfall in September: 86mm
The wettest month (with the highest rainfall) is August (119mm).
The driest month (with the least rainfall) is April (43mm).
Average rainfall days in September
Momonai, Japan
- Average rainfall days in September: 18.3 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in September
Momonai, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (369mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Momonai, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (26 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Momonai, Japan
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 7h and 42min
The months with the most sunshine are May and August (Average sunshine: 8h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 12min).
Average sunshine days in September
Momonai, Japan
- Average sunshine days in September: 9.2 days
The month with the most sunshine days is May (14.8 days).
The month with the least sunshine days is January (3.1 days).
Average UV index in September
Momonai, Japan
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Momonai, Japan
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 89).
The month with the least cloud cover is September (Cloud cover 42).
Average visibility in September
Momonai, Japan
- Average visibility in September: 9km
The month with the highest visibility is October (10km).
The month with the lowest visibility is January (7km).
