September weather forecastMoriyama, Japan
September
Weather in September
September, the first month of the autumn in Moriyama, is still a warm month, with temperature in the range of an average high of 26.5°C (79.7°F) and an average low of 18.2°C (64.8°F).Temperature
The beginning of September marks a decrease in the average high-temperature, transitioning from a hot 31.5°C (88.7°F) in August to a moderately hot 26.5°C (79.7°F). In Moriyama, an average temperature of 18.2°C (64.8°F) is noted during September nights.Humidity
The average relative humidity in September in Moriyama is 80%.Rainfall
In Moriyama, during September, the rain falls for 14.3 days and regularly aggregates up to 60mm (2.36") of precipitation. Throughout the year, there are 164.8 rainfall days, and 721mm (28.39") of precipitation is accumulated.Snowfall
May through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September, sunrise is at 05:28 and sunset at 18:23. On the last day of the month, sunrise is at 05:50 and sunset at 17:41 JST.
Sunshine
In Moriyama, Japan, the average sunshine in September is 7.5h.UV index
The average daily maximum UV index in September in Moriyama is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Moriyama, Japan
- Average high temperature in September: 26.5°C
The warmest month (with the highest average high temperature) is August (31.5°C).
The month with the lowest average high temperature is January (6°C).
- Average low temperature in September: 18.2°C
The month with the highest average low temperature is August (22.3°C).
The coldest month (with the lowest average low temperature) is January (-0.1°C).
Average pressure in September
Moriyama, Japan
- Average pressure in September: 1013mbar
The month with the highest atmospheric pressure is February (1019.6mbar).
The month with the lowest atmospheric pressure is June (1008.9mbar).
Average wind speed in September
Moriyama, Japan
- Average wind speed in September: 7.1km/h
The windiest months (with the highest average wind speed) are January and December (8.3km/h).
The calmest month (with the lowest average wind speed) is July (6.4km/h).
Average humidity in September
Moriyama, Japan
- Average humidity in September: 80%
The months with the highest relative humidity are January, July, October and December (81%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Moriyama, Japan
- Average rainfall in September: 60mm
The wettest month (with the highest rainfall) is July (142mm).
The driest month (with the least rainfall) is November (26mm).
Average rainfall days in September
Moriyama, Japan
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is May (11.8 days).
Average snowfall in September
Moriyama, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (101mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Moriyama, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Moriyama, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Moriyama, Japan
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is May (17.4 days).
The month with the least sunshine days is January (7.9 days).
Average UV index in September
Moriyama, Japan
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Moriyama, Japan
- Average cloud cover in September: 52
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is May (Cloud cover 44).
Average visibility in September
Moriyama, Japan
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, April, May, August and December (8km).
The months with the lowest visibility are June, July, September, October and November (7km).
