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
September
Weather in September
Temperature
September's arrival subtly correlates with a reduction in the average high-temperature, down from 28.6°C (83.5°F) in August to a still warm 23.9°C (75°F). During the month of September, Chichibu anticipates a mean low-temperature of 16.4°C (61.5°F).Humidity
The average relative humidity in September in Chichibu is 81%.Rainfall
In Chichibu, in September, during 19.3 rainfall days, 120mm (4.72") of precipitation is typically accumulated. In Chichibu, during the entire year, the rain falls for 181.9 days and collects up to 1096mm (43.15") of precipitation.Snowfall
In Chichibu, Japan, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 05:15 and sunset at 18:11. On the last day of the month, sunrise is at 05:37 and sunset at 17:29 JST.
Sunshine
In Chichibu, the average sunshine in September is 7.5h.UV index
In Chichibu, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 5 suggests these recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Chichibu?
What is the average humidity in September in Chichibu?
How many days does it rain in September in Chichibu?
When it does not snow in Chichibu?
How many hours of daylight does Chichibu have in September?
What time are sunrise and sunset in September in Chichibu?
How long on average sun shines in September in Chichibu?
What is the UV index intensity in September in Chichibu?
Average temperature in September
Chichibu, Japan
- Average high temperature in September: 23.9°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 (5.3°C).
- Average low temperature in September: 16.4°C
The month with the highest average low temperature is August (20.7°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).
Average pressure in September
Chichibu, Japan
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is November (1018.5mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Chichibu, Japan
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is January (9.5km/h).
The calmest month (with the lowest average wind speed) is July (5.8km/h).
Average humidity in September
Chichibu, Japan
- Average humidity in September: 81%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is January (65%).
Average rainfall in September
Chichibu, Japan
- Average rainfall in September: 120mm
The wettest month (with the highest rainfall) is October (168mm).
The driest month (with the least rainfall) is February (31mm).
Average rainfall days in September
Chichibu, Japan
- Average rainfall days in September: 19.3 days
The month with the highest number of rainy days is July (25.9 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Chichibu, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (140mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Chichibu, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.3 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
Chichibu, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 7h and 3min
The month with the most sunshine is May (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days in September
Chichibu, Japan
- Average sunshine days in September: 8.8 days
The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is July (3.8 days).
Average UV index in September
Chichibu, 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 and December (UV index 2).
Average cloud cover in September
Chichibu, Japan
- Average cloud cover in September: 47
The month with the most cloud cover is June (Cloud cover 51).
The month with the least cloud cover is January (Cloud cover 25).
Average visibility in September
Chichibu, Japan
- Average visibility in September: 8km
The months with the highest visibility are January and December (10km).
The months with the lowest visibility are June, July, August and September (8km).
