September weather forecastFunabashi, Japan
September
Weather in September
September allows Funabashi to cool off slightly from August, indicating the onset of autumn. Marked by foliage changes, tourists will find delight in the distinctly less humid, enjoyable weather. However, the prominent feature of September weather is the high rainfall, with precipitation peaking to 116mm (4.57"). Yet, this does not affect outdoor activities, as rain is often interspersed with sunny patches.Temperature
September ushers in a minute temperature change in Funabashi, with average high-temperatures reducing from August's hot 30.8°C (87.4°F) to a warm 26.7°C (80.1°F). Throughout the month of September, Funabashi observes an average nighttime temperature of 21.1°C (70°F).Humidity
The average relative humidity in September is 76%.Rainfall
In Funabashi, in September, it is raining for 17.5 days, with typically 116mm (4.57") of accumulated precipitation. In Funabashi, Japan, during the entire year, the rain falls for 169.8 days and collects up to 926mm (36.46") of precipitation.Snowfall
In Funabashi, snow does not fall in March through December.Sea temperature
In Funabashi, in September, the average water temperature is 25.3°C (77.5°F).Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) offer outstanding conditions for any water activity, providing extreme pleasure for extended periods.
Daylight
In Funabashi, Japan, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 05:12 and sunset at 18:07. On the last day of the month, sunrise is at 05:34 and sunset at 17:25 JST.
Sunshine
In September, the average sunshine in Funabashi, Japan, is 7.7h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 6 in September translates into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take note! The UV strength of the Sun elevates when reflected off water and sand.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Funabashi, Japan
- Average high temperature in September: 26.7°C
The warmest month (with the highest average high temperature) is August (30.8°C).
The month with the lowest average high temperature is January (8.8°C).
- Average low temperature in September: 21.1°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 (2.8°C).
Average pressure in September
Funabashi, Japan
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Funabashi, Japan
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is April (15.1km/h).
The calmest month (with the lowest average wind speed) is November (11.8km/h).
Average humidity in September
Funabashi, Japan
- Average humidity in September: 76%
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is January (61%).
Average rainfall in September
Funabashi, Japan
- Average rainfall in September: 116mm
The wettest month (with the highest rainfall) is October (129mm).
The driest months (with the least rainfall) are January and December (40mm).
Average rainfall days in September
Funabashi, Japan
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in September
Funabashi, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (43mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Funabashi, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 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
Funabashi, Japan
- Average sea temperature in September: 25.3°C
The best month for swimming (with the highest average sea temperature) is August (25.7°C).
The coldest month (with the lowest average sea temperature) is February (14°C).
Average daylight in September /
Average sunshine in September
Funabashi, Japan
- Average daylight in September: 12h and 24min
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 42min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days in September
Funabashi, Japan
- Average sunshine days in September: 10 days
The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is September (10 days).
Average UV index in September
Funabashi, 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 January (UV index 2).
Average cloud cover in September
Funabashi, Japan
- Average cloud cover in September: 41
The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 29).
Average visibility in September
Funabashi, Japan
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, August, November and December (10km).
The months with the lowest visibility are June, July, September and October (9km).





