Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The onset of September brings an average high-temperature of a still warm 25.8°C (78.4°F), nearly matching the August temperature. Nagasawa documents an average low-temperature of 22.8°C (73°F) for the nights of September.Humidity
The average relative humidity in September in Nagasawa is 77%.Rainfall
In Nagasawa, in September, during 15.8 rainfall days, 103mm (4.06") of precipitation is typically accumulated. Throughout the year, in Nagasawa, Japan, there are 166 rainfall days, and 920mm (36.22") of precipitation is accumulated.Snowfall
In Nagasawa, Japan, snow does not fall in March through December.Daylight
In September, the average length of the day in Nagasawa, Japan, is 12h and 25min.On the first day of September in Nagasawa, Japan, sunrise is at 05:13 and sunset at 18:08. On the last day of the month, sunrise is at 05:35 and sunset at 17:27 JST.
Sunshine
The average sunshine in September is 8.2h.UV index
In Nagasawa, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 6 during September translates into the following guidance:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What are the temperatures in Nagasawa in September?
What is the average humidity in September in Nagasawa?
How many days does it rain in September in Nagasawa?
When it does not snow in Nagasawa?
What is the average length of the day in September in Nagasawa?
When is the sunrise / sunset in September in Nagasawa?
How many hours of sunshine does Nagasawa have in September?
What is the UV index intensity in September in Nagasawa?
Average temperature in September
Nagasawa, Japan
- Average high temperature in September: 25.8°C
The warmest month (with the highest average high temperature) is August (28.6°C).
The month with the lowest average high temperature is January (10.1°C).
- Average low temperature in September: 22.8°C
The month with the highest average low temperature is August (25.3°C).
The coldest month (with the lowest average low temperature) is January (6°C).
Average pressure in September
Nagasawa, Japan
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is November (1017.8mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in September
Nagasawa, Japan
- Average wind speed in September: 18km/h
The windiest month (with the highest average wind speed) is March (22.4km/h).
The calmest month (with the lowest average wind speed) is June (16.9km/h).
Average humidity in September
Nagasawa, Japan
- Average humidity in September: 77%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is January (61%).
Average rainfall in September
Nagasawa, Japan
- Average rainfall in September: 103mm
The wettest month (with the highest rainfall) is October (121mm).
The driest month (with the least rainfall) is February (45mm).
Average rainfall days in September
Nagasawa, Japan
- Average rainfall days in September: 15.8 days
The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Nagasawa, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (6mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Nagasawa, Japan
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Nagasawa, Japan
- Average daylight in September: 12h and 2min
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: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in September
Nagasawa, Japan
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is January (17.8 days).
The months with the least sunshine days are June and September (11.3 days).
Average UV index in September
Nagasawa, Japan
- Average UV index in September: 6
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 3).
Average cloud cover in September
Nagasawa, Japan
- Average cloud cover in September: 36
The months with the most cloud cover are March and October (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Nagasawa, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Nagasawa, Japan
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