September weather forecastMuroran, Japan
September
Weather in September
September, the first month of the autumn in Muroran, is still a pleasant month, with an average temperature ranging between max 20.2°C (68.4°F) and min 14.4°C (57.9°F).Temperature
September experiences an average high-temperature of an agreeable 20.2°C (68.4°F), barely different from August's 23°C (73.4°F). Muroran usually reports an average low-temperature of 14.4°C (57.9°F) during the month of September.Humidity
In September, the average relative humidity is 82%.Rainfall
In September, the rain falls for 15.6 days. Throughout September, 86mm (3.39") of precipitation is accumulated. Throughout the year, in Muroran, Japan, there are 173.2 rainfall days, and 852mm (33.54") of precipitation is accumulated.Snowfall
May through September are months without snowfall in Muroran.Daylight
In Muroran, Japan, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 05:01 and sunset at 18:10. On the last day of September, in Muroran, Japan, sunrise is at 05:32 and sunset at 17:19 JST.
Sunshine
The average sunshine in September is 7.5h.UV index
The average daily maximum UV index in September in Muroran is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Muroran, Japan
- Average high temperature in September: 20.2°C
The warmest month (with the highest average high temperature) is August (23°C).
The month with the lowest average high temperature is January (-1.9°C).
- Average low temperature in September: 14.4°C
The month with the highest average low temperature is August (17.8°C).
The coldest month (with the lowest average low temperature) is February (-7°C).
Average pressure in September
Muroran, Japan
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is November (1016.6mbar).
The month with the lowest atmospheric pressure is July (1008.7mbar).
Average wind speed in September
Muroran, Japan
- Average wind speed in September: 12km/h
The windiest month (with the highest average wind speed) is December (19.2km/h).
The calmest month (with the lowest average wind speed) is July (10.2km/h).
Average humidity in September
Muroran, Japan
- Average humidity in September: 82%
The month with the highest relative humidity is July (88%).
The month with the lowest relative humidity is October (77%).
Average rainfall in September
Muroran, Japan
- Average rainfall in September: 86mm
The wettest month (with the highest rainfall) is August (115mm).
The driest month (with the least rainfall) is January (40mm).
Average rainfall days in September
Muroran, Japan
- Average rainfall days in September: 15.6 days
The month with the highest number of rainy days is August (19.7 days).
The month with the least rainy days is February (8.4 days).
Average snowfall in September
Muroran, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (218mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Muroran, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (22.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Muroran, Japan
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is April (Average sunshine: 8h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in September
Muroran, Japan
- Average sunshine days in September: 10.4 days
The month with the most sunshine days is May (14.2 days).
The month with the least sunshine days is December (4.4 days).
Average UV index in September
Muroran, Japan
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Muroran, Japan
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is October (Cloud cover 40).
Average visibility in September
Muroran, Japan
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, September, October and November (9km).
The month with the lowest visibility is July (7km).
