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
Weather in September
Temperature
September brings a slight decrease in the average high-temperature, shifting from 28.8°C (83.8°F) in August to a still warm 25.7°C (78.3°F). Nighttime temperature reflects an average dip to a pleasant 22.2°C (72°F) in September, subtly cooler than its daytime highs.Humidity
In September, the average relative humidity in Futtsu is 78%.Rainfall
In Futtsu, in September, it is raining for 16.5 days, with typically 120mm (4.72") of accumulated precipitation. In Futtsu, during the entire year, the rain falls for 178.2 days and collects up to 1117mm (43.98") of precipitation.Snowfall
April through December are months without snowfall in Futtsu.Sea temperature
In Futtsu, in September, the average water temperature is 25.9°C (78.6°F).Note: For any water activity, the surface water temperatures in the range of 25°C (77°F) to 29°C (84.2°F) are deemed excellent and incredibly pleasant for longer durations.
Daylight
The average length of the day in September in Futtsu is 12h and 25min.On the first day of the month, sunrise is at 05:13 and sunset at 18:07. On the last day of September, in Futtsu, sunrise is at 05:34 and sunset at 17:26 JST.
Sunshine
The average sunshine in September in Futtsu is 7.9h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during September leads to these instructions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Notice! The Sun's UV exposure elevates with sand and water reflections.
Frequently asked questions
What is the temperature in September in Futtsu?
What is the average humidity in September in Futtsu?
How many days does it rain in September in Futtsu?
When it does not snow in Futtsu?
What is the water temperature in September in Futtsu?
How many hours of daylight does Futtsu have in September?
What time are sunrise and sunset in September in Futtsu?
How long on average sun shines in September in Futtsu?
How high is the UV index in September in Futtsu?
Average temperature in September
Futtsu, Japan
- Average high temperature in September: 25.7°C
The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (9.7°C).
- Average low temperature in September: 22.2°C
The month with the highest average low temperature is August (25.1°C).
The coldest month (with the lowest average low temperature) is January (5.3°C).
Average pressure in September
Futtsu, Japan
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is November (1017.8mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in September
Futtsu, Japan
- Average wind speed in September: 16.6km/h
The windiest month (with the highest average wind speed) is March (20.9km/h).
The calmest month (with the lowest average wind speed) is June (15.7km/h).
Average humidity in September
Futtsu, Japan
- Average humidity in September: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is January (63%).
Average rainfall in September
Futtsu, Japan
- Average rainfall in September: 120mm
The wettest month (with the highest rainfall) is October (156mm).
The driest month (with the least rainfall) is August (55mm).
Average rainfall days in September
Futtsu, Japan
- Average rainfall days in September: 16.5 days
The month with the highest number of rainy days is October (18.8 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in September
Futtsu, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (9mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Futtsu, Japan
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and 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 sea temperature in September
Futtsu, Japan
- Average sea temperature in September: 25.9°C
The best month for swimming (with the highest average sea temperature) is August (26.2°C).
The coldest months (with the lowest average sea temperature) are February and March (16.2°C).
Average daylight in September /
Average sunshine in September
Futtsu, 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 5min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in September
Futtsu, Japan
- Average sunshine days in September: 11.2 days
The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is October (8.8 days).
Average UV index in September
Futtsu, Japan
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Futtsu, Japan
- Average cloud cover in September: 38
The months with the most cloud cover are March and October (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Futtsu, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Futtsu, Japan
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