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 is marked by a subtle drop in average high-temperatures, transitioning from a hot 30.2°C (86.4°F) in August to a warm 26.5°C (79.7°F). The average temperature drops to a pleasant 21°C (69.8°F) during the night in the month of September.Humidity
In Saiku, Japan, the average relative humidity in September is 79%.Rainfall
In Saiku, in September, it is raining for 16.6 days, with typically 123mm (4.84") of accumulated precipitation. In Saiku, during the entire year, the rain falls for 147.1 days and collects up to 999mm (39.33") of precipitation.Snowfall
In Saiku, snow does not fall in January, March through December.Daylight
In September, the average length of the day is 12h and 24min.On the first day of September, sunrise is at 05:26 and sunset at 18:20. On the last day of the month, sunrise is at 05:47 and sunset at 17:39 JST.
Sunshine
In Saiku, the average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September in Saiku?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Saiku, Japan
- Average high temperature in September: 26.5°C
The warmest month (with the highest average high temperature) is August (30.2°C).
The month with the lowest average high temperature is January (8.6°C).
- Average low temperature in September: 21°C
The month with the highest average low temperature is August (24.1°C).
The coldest month (with the lowest average low temperature) is January (3.3°C).
Average pressure in September
Saiku, Japan
- Average pressure in September: 1012.7mbar
The month with the highest atmospheric pressure is November (1019mbar).
The month with the lowest atmospheric pressure is June (1009mbar).
Average wind speed in September
Saiku, Japan
- Average wind speed in September: 11.4km/h
The windiest month (with the highest average wind speed) is January (17.1km/h).
The calmest month (with the lowest average wind speed) is July (9.3km/h).
Average humidity in September
Saiku, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are January and February (70%).
Average rainfall in September
Saiku, Japan
- Average rainfall in September: 123mm
The wettest month (with the highest rainfall) is October (170mm).
The driest months (with the least rainfall) are January and February (31mm).
Average rainfall days in September
Saiku, Japan
- Average rainfall days in September: 16.6 days
The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in September
Saiku, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (3mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Saiku, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Saiku, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).
Average sunshine days in September
Saiku, Japan
- Average sunshine days in September: 11.7 days
The month with the most sunshine days is January (25 days).
The month with the least sunshine days is July (10.6 days).
Average UV index in September
Saiku, Japan
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Saiku, Japan
- Average cloud cover in September: 40
The month with the most cloud cover is June (Cloud cover 44).
The months with the least cloud cover are November and December (Cloud cover 30).
Average visibility in September
Saiku, Japan
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, November and December (10km).
The months with the lowest visibility are April, May, June, July, August, September and October (9km).
