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
The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a tropical 30.3°C (86.5°F) in August to a moderately hot 26.4°C (79.5°F). During the month of September, Yotsukaido's average nighttime temperature closely mirrors its daytime counterpart, at a pleasant 21.8°C (71.2°F).Humidity
In Yotsukaido, Japan, the average relative humidity in September is 77%.Rainfall
In September, the rain falls for 10.4 days. Throughout September, 24mm (0.94") of precipitation is accumulated. Throughout the year, in Yotsukaido, there are 110.2 rainfall days, and 221mm (8.7") of precipitation is accumulated.Snowfall
In Yotsukaido, snow does not fall in March through December.Daylight
In September, the average length of the day in Yotsukaido is 12h and 25min.On the first day of September in Yotsukaido, sunrise is at 05:11 and sunset at 18:07. On the last day of the month, sunrise is at 05:33 and sunset at 17:24 JST.
Sunshine
In September, the average sunshine in Yotsukaido is 7.7h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.Note: The average daily UV index of 6 in September transforms into the following instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Frequently asked questions
What are September temperatures in Yotsukaido?
What is the average humidity in September in Yotsukaido?
How many days does it rain in September in Yotsukaido?
When it does not snow in Yotsukaido?
How many hours of daylight does Yotsukaido have in September?
What time are sunrise and sunset in September in Yotsukaido?
How long on average sun shines in September in Yotsukaido?
What is the UV index reading in September in Yotsukaido?
Average temperature in September
Yotsukaido, Japan
- Average high temperature in September: 26.4°C
The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (9.1°C).
- Average low temperature in September: 21.8°C
The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (3.7°C).
Average pressure in September
Yotsukaido, Japan
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Yotsukaido, Japan
- Average wind speed in September: 13.5km/h
The windiest month (with the highest average wind speed) is March (16.5km/h).
The calmest month (with the lowest average wind speed) is June (12.7km/h).
Average humidity in September
Yotsukaido, Japan
- Average humidity in September: 77%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is January (61%).
Average rainfall in September
Yotsukaido, Japan
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is October (29mm).
The driest month (with the least rainfall) is January (9mm).
Average rainfall days in September
Yotsukaido, Japan
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is October (11.4 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in September
Yotsukaido, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (4mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Yotsukaido, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Yotsukaido, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in September
Yotsukaido, Japan
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is October (15.6 days).
Average UV index in September
Yotsukaido, Japan
- Average UV index in September: 6
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 3).
Average cloud cover in September
Yotsukaido, Japan
- Average cloud cover in September: 40
The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 30).
Average visibility in September
Yotsukaido, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
Yotsukaido, Japan
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