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 sea temperature 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 start of September marks an average high-temperature of a still warm 26.6°C (79.9°F), hardly distinguishable from the conditions in August. Yatsushiro in September anticipates an average nighttime temperature of 21.1°C (70°F).Humidity
In Yatsushiro, the average relative humidity in September is 78%.Rainfall
In September, in Yatsushiro, the rain falls for 17.5 days. Throughout September, 111mm (4.37") of precipitation is accumulated. In Yatsushiro, during the entire year, the rain falls for 182.8 days and collects up to 1440mm (56.69") of precipitation.Snowfall
In Yatsushiro, snow does not fall in April through November.Sea temperature
In Yatsushiro, in September, the average water temperature is 27.3°C (81.1°F).Note: For engaging in any water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) are viewed as outstanding and exceptionally pleasing for prolonged durations.
Daylight
The average length of the day in September in Yatsushiro is 12h and 23min.On the first day of the month, sunrise is at 05:52 and sunset at 18:42. On the last day of September, in Yatsushiro, Japan, sunrise is at 06:11 and sunset at 18:04 JST.
Sunshine
In September, the average sunshine in Yatsushiro is 8.8h.UV index
In September, the average daily maximum UV index in Yatsushiro is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 6 in September translates into the following instructions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Yatsushiro in September?
What is the average humidity in September in Yatsushiro?
How many days does it rain in September in Yatsushiro?
When it does not snow in Yatsushiro?
How warm is the water in September in Yatsushiro?
What is the average length of the day in September in Yatsushiro?
When is the sunrise / sunset in September in Yatsushiro?
How long on average sun shines in September in Yatsushiro?
What is the UV index intensity in September in Yatsushiro?
Average temperature in September
Yatsushiro, Japan
- Average high temperature in September: 26.6°C
The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (9°C).
- Average low temperature in September: 21.1°C
The month with the highest average low temperature is August (24.2°C).
The coldest month (with the lowest average low temperature) is January (3.8°C).
Average pressure in September
Yatsushiro, Japan
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is January (1021.7mbar).
The month with the lowest atmospheric pressure is June (1008.2mbar).
Average wind speed in September
Yatsushiro, Japan
- Average wind speed in September: 9.2km/h
The windiest month (with the highest average wind speed) is December (12.5km/h).
The calmest month (with the lowest average wind speed) is June (8.2km/h).
Average humidity in September
Yatsushiro, Japan
- Average humidity in September: 78%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Yatsushiro, Japan
- Average rainfall in September: 111mm
The wettest month (with the highest rainfall) is June (303mm).
The driest month (with the least rainfall) is January (51mm).
Average rainfall days in September
Yatsushiro, Japan
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is July (22.9 days).
The month with the least rainy days is January (10.3 days).
Average snowfall in September
Yatsushiro, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (19mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Yatsushiro, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Yatsushiro, Japan
- Average sea temperature in September: 27.3°C
The best month for swimming (with the highest average sea temperature) is August (28°C).
The coldest month (with the lowest average sea temperature) is March (17.2°C).
Average daylight in September /
Average sunshine in September
Yatsushiro, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Yatsushiro, Japan
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is July (5.9 days).
Average UV index in September
Yatsushiro, Japan
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Yatsushiro, Japan
- Average cloud cover in September: 37
The month with the most cloud cover is June (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in September
Yatsushiro, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, August, September, October, November and December (10km).
The months with the lowest visibility are April, May, June and July (9km).
