September weather forecastSunagawa, Japan
September
Weather in September
September, the first month of the autumn in Sunagawa, is also an agreeable month, with an average temperature varying between 11.1°C (52°F) and 20.4°C (68.7°F).Temperature
September signifies a gentle decline in Sunagawa's average high-temperature, easing from a moderately hot 24.4°C (75.9°F) in August to an agreeable 20.4°C (68.7°F). During September, Sunagawa experiences an average low-temperature of 11.1°C (52°F) at night.Humidity
In Sunagawa, the average relative humidity in September is 84%.Rainfall
In Sunagawa, in September, during 14.6 rainfall days, 36mm (1.42") of precipitation is typically accumulated. Throughout the year, there are 120.7 rainfall days, and 404mm (15.91") of precipitation is accumulated.Snowfall
May through September are months without snowfall in Sunagawa.Daylight
In Sunagawa, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 04:56 and sunset at 18:08. On the last day of September, sunrise is at 05:28 and sunset at 17:15 JST.
Sunshine
In Sunagawa, the average sunshine in September is 7.2h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sunagawa, Japan
- Average high temperature in September: 20.4°C
The warmest month (with the highest average high temperature) is August (24.4°C).
The month with the lowest average high temperature is January (-4.1°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is August (15.1°C).
The coldest month (with the lowest average low temperature) is February (-11.1°C).
Average pressure in September
Sunagawa, Japan
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is November (1015.7mbar).
The month with the lowest atmospheric pressure is July (1008.6mbar).
Average wind speed in September
Sunagawa, Japan
- Average wind speed in September: 8.2km/h
The windiest months (with the highest average wind speed) are April and December (10.8km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).
Average humidity in September
Sunagawa, Japan
- Average humidity in September: 84%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Sunagawa, Japan
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is August (69mm).
The driest month (with the least rainfall) is February (18mm).
Average rainfall days in September
Sunagawa, Japan
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is August (17 days).
The month with the least rainy days is January (2 days).
Average snowfall in September
Sunagawa, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is December (227mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Sunagawa, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (22.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sunagawa, Japan
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 7h and 12min
The month with the most sunshine is May (Average sunshine: 8h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in September
Sunagawa, Japan
- Average sunshine days in September: 13 days
The month with the most sunshine days is May (17.3 days).
The month with the least sunshine days is December (7.8 days).
Average UV index in September
Sunagawa, Japan
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Sunagawa, Japan
- Average cloud cover in September: 46
The month with the most cloud cover is January (Cloud cover 85).
The month with the least cloud cover is September (Cloud cover 46).
Average visibility in September
Sunagawa, Japan
- Average visibility in September: 8km
The months with the highest visibility are April, May and October (9km).
The month with the lowest visibility is January (6km).
