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 arrival of September corresponds with a light shift in temperature, down from 27.9°C (82.2°F) in August to a still moderately hot 23.4°C (74.1°F). September's nights observe an average temperature of 17.2°C (63°F).Humidity
In September, the average relative humidity is 79%.Rainfall
In Hasumachi, during September, the rain falls for 16.9 days and regularly aggregates up to 114mm (4.49") of precipitation. Throughout the year, there are 219.3 rainfall days, and 1322mm (52.05") of precipitation is accumulated.Snowfall
In Hasumachi, snow does not fall in May through November.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 05:22 and sunset at 18:19. On the last day of September, in Hasumachi, sunrise is at 05:45 and sunset at 17:36 JST.
Sunshine
In September, the average sunshine is 8.4h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Hasumachi in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Hasumachi have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Hasumachi have in September?
What is the UV index reading in September in Hasumachi?
Average temperature in September
Hasumachi, Japan
- Average high temperature in September: 23.4°C
The warmest month (with the highest average high temperature) is August (27.9°C).
The month with the lowest average high temperature is January (2.6°C).
- Average low temperature in September: 17.2°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 (-2.8°C).
Average pressure in September
Hasumachi, Japan
- Average pressure in September: 1013.6mbar
The months with the highest atmospheric pressure are February and November (1019.4mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in September
Hasumachi, Japan
- Average wind speed in September: 8.1km/h
The windiest month (with the highest average wind speed) is December (12km/h).
The calmest months (with the lowest average wind speed) are June and August (7.4km/h).
Average humidity in September
Hasumachi, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Hasumachi, Japan
- Average rainfall in September: 114mm
The wettest month (with the highest rainfall) is July (179mm).
The driest month (with the least rainfall) is May (64mm).
Average rainfall days in September
Hasumachi, Japan
- Average rainfall days in September: 16.9 days
The month with the highest number of rainy days is July (24.8 days).
The month with the least rainy days is May (14.4 days).
Average snowfall in September
Hasumachi, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (469mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Hasumachi, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.5 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
Hasumachi, 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: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Hasumachi, Japan
- Average sunshine days in September: 10.2 days
The month with the most sunshine days is May (13.6 days).
The month with the least sunshine days is January (3.5 days).
Average UV index in September
Hasumachi, Japan
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Hasumachi, Japan
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is May (Cloud cover 33).
Average visibility in September
Hasumachi, Japan
- Average visibility in September: 9km
The month with the highest visibility is October (10km).
The month with the lowest visibility is January (8km).
