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 suggests a slight decrease in the average high-temperature, moving from a tropical 30°C (86°F) in August to a moderately hot 26.1°C (79°F). During September, the average low-temperature is an agreeable 20.4°C (68.7°F).Humidity
In Ihozaki, the average relative humidity in September is 78%.Rainfall
In Ihozaki, in September, it is raining for 15.5 days, with typically 82mm (3.23") of accumulated precipitation. Throughout the year, there are 166.4 rainfall days, and 586mm (23.07") of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 24min.On the first day of September, sunrise is at 05:33 and sunset at 18:27. On the last day of the month, sunrise is at 05:54 and sunset at 17:46 JST.
Sunshine
The average sunshine in September is 9.2h.UV index
In Ihozaki, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 5 during September leads to these advisories:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Ihozaki have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Ihozaki have in September?
What is the UV index intensity in September?
Average temperature in September
Ihozaki, Japan
- Average high temperature in September: 26.1°C
The warmest month (with the highest average high temperature) is August (30°C).
The month with the lowest average high temperature is January (7.8°C).
- Average low temperature in September: 20.4°C
The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is January (3.1°C).
Average pressure in September
Ihozaki, Japan
- Average pressure in September: 1012.7mbar
The month with the highest atmospheric pressure is February (1020.1mbar).
The month with the lowest atmospheric pressure is June (1008.7mbar).
Average wind speed in September
Ihozaki, Japan
- Average wind speed in September: 10.6km/h
The windiest month (with the highest average wind speed) is January (15.2km/h).
The calmest month (with the lowest average wind speed) is June (9.4km/h).
Average humidity in September
Ihozaki, Japan
- Average humidity in September: 78%
The month with the highest relative humidity is July (83%).
The months with the lowest relative humidity are March and April (72%).
Average rainfall in September
Ihozaki, Japan
- Average rainfall in September: 82mm
The wettest month (with the highest rainfall) is July (106mm).
The driest month (with the least rainfall) is February (20mm).
Average rainfall days in September
Ihozaki, Japan
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is May (10.3 days).
Average snowfall in September
Ihozaki, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (28mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Ihozaki, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Ihozaki, 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 54min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).
Average sunshine days in September
Ihozaki, Japan
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is May (18.5 days).
The month with the least sunshine days is August (8.8 days).
Average UV index in September
Ihozaki, Japan
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Ihozaki, Japan
- Average cloud cover in September: 36
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Ihozaki, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, August, September, October, November and December (10km).
The months with the lowest visibility are June and July (9km).
