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
In September, the meteorological conditions change slightly, with the average high-temperature moving from 27.6°C (81.7°F) in August to a still moderately hot 23.5°C (74.3°F). The mean low-temperature during September nights is a refreshing 17.5°C (63.5°F).Humidity
In September, the average relative humidity in Watari is 81%.Rainfall
In Watari, in September, during 14.7 rainfall days, 85mm (3.35") of precipitation is typically accumulated. In Watari, Japan, during the entire year, the rain falls for 164.3 days and collects up to 828mm (32.6") of precipitation.Snowfall
In Watari, snow does not fall in May through November.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September in Watari, sunrise is at 05:08 and sunset at 18:07. On the last day of the month, sunrise is at 05:32 and sunset at 17:23 JST.
Sunshine
The average sunshine in September in Watari, Japan, is 7.4h.UV index
In Watari, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Be vigilant - Preventing sunburn is recommended. To guard against the harmful effects of the Sun, minimize exposure during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Watari?
What is the average humidity in September in Watari?
How many days does it rain in September in Watari?
When it does not snow in Watari?
How many hours of daylight does Watari have in September?
When are sunrise and sunset in September in Watari?
How long on average sun shines in September in Watari?
How high is the UV index in September in Watari?
Average temperature in September
Watari, Japan
- Average high temperature in September: 23.5°C
The warmest month (with the highest average high temperature) is August (27.6°C).
The month with the lowest average high temperature is January (3.2°C).
- Average low temperature in September: 17.5°C
The month with the highest average low temperature is August (21.2°C).
The coldest month (with the lowest average low temperature) is February (-2.2°C).
Average pressure in September
Watari, Japan
- Average pressure in September: 1014.1mbar
The month with the highest atmospheric pressure is November (1018.7mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).
Average wind speed in September
Watari, Japan
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is January (14.9km/h).
The calmest month (with the lowest average wind speed) is July (7.9km/h).
Average humidity in September
Watari, Japan
- Average humidity in September: 81%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Watari, Japan
- Average rainfall in September: 85mm
The wettest month (with the highest rainfall) is July (137mm).
The driest month (with the least rainfall) is February (28mm).
Average rainfall days in September
Watari, Japan
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is July (22.3 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in September
Watari, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (129mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Watari, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Watari, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is May (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in September
Watari, Japan
- Average sunshine days in September: 12.7 days
The month with the most sunshine days is May (17.8 days).
The month with the least sunshine days is July (7 days).
Average UV index in September
Watari, Japan
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in September
Watari, Japan
- Average cloud cover in September: 43
The month with the most cloud cover is July (Cloud cover 50).
The month with the least cloud cover is May (Cloud cover 37).
Average visibility in September
Watari, Japan
- Average visibility in September: 9km
The months with the highest visibility are October and November (10km).
The month with the lowest visibility is July (8km).
Watari, Japan
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