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
The onset of September results in a small decrease in the average high-temperature, moderately receding from a moderately hot 25.9°C (78.6°F) in August to an agreeable 21°C (69.8°F). Nightly temperatures drop to an average low of 12.1°C (53.8°F) in September.Humidity
February, July and September, with an average relative humidity of 86%, are the most humid months.Rainfall
In Mochizuki, in September, it is raining for 20.3 days, with typically 119mm (4.69") of accumulated precipitation. In Mochizuki, during the entire year, the rain falls for 202 days and collects up to 1122mm (44.17") of precipitation.Snowfall
In Mochizuki, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 05:18 and sunset at 18:14. On the last day of the month, sunrise is at 05:40 and sunset at 17:32 JST.
Sunshine
The average sunshine in September is 6.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What are the most humid months?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Mochizuki have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Mochizuki, Japan
- Average high temperature in September: 21°C
The warmest month (with the highest average high temperature) is August (25.9°C).
The month with the lowest average high temperature is January (-0.9°C).
- Average low temperature in September: 12.1°C
The month with the highest average low temperature is August (16.5°C).
The coldest month (with the lowest average low temperature) is January (-8.8°C).
Average pressure in September
Mochizuki, Japan
- Average pressure in September: 1013.8mbar
The month with the highest atmospheric pressure is November (1019mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Mochizuki, Japan
- Average wind speed in September: 6.8km/h
The windiest month (with the highest average wind speed) is March (9.1km/h).
The calmest month (with the lowest average wind speed) is August (5.7km/h).
Average humidity in September
Mochizuki, Japan
- Average humidity in September: 86%
The months with the highest relative humidity are February, July and September (86%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
Mochizuki, Japan
- Average rainfall in September: 119mm
The wettest month (with the highest rainfall) is July (210mm).
The driest month (with the least rainfall) is December (29mm).
Average rainfall days in September
Mochizuki, Japan
- Average rainfall days in September: 20.3 days
The month with the highest number of rainy days is July (28.5 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in September
Mochizuki, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is March (256mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Mochizuki, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.8 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
Mochizuki, 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 42min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is May (Average sunshine: 9h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in September
Mochizuki, Japan
- Average sunshine days in September: 7.2 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is July (1.6 days).
Average UV index in September
Mochizuki, Japan
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Mochizuki, Japan
- Average cloud cover in September: 60
The month with the most cloud cover is September (Cloud cover 60).
The month with the least cloud cover is May (Cloud cover 42).
Average visibility in September
Mochizuki, Japan
- Average visibility in September: 6km
The months with the highest visibility are March, April, May and December (8km).
The month with the lowest visibility is September (6km).
