September weather forecastNomi, Japan
September
Weather in September
September, the first month of the autumn in Nomi, is still a warm month, with an average temperature ranging between max 24.5°C (76.1°F) and min 18.3°C (64.9°F).Temperature
With the onset of September, the average high-temperature subtly recedes from August's 29.1°C (84.4°F) to a still warm 24.5°C (76.1°F). Throughout September, the nighttime temperature averages to a comfortable 18.3°C (64.9°F).Humidity
In September, the average relative humidity is 79%.Rainfall
In Nomi, during September, the rain falls for 15.3 days and regularly aggregates up to 79mm (3.11") of precipitation. Throughout the year, there are 176.3 rainfall days, and 820mm (32.28") of precipitation is accumulated.Snowfall
In Nomi, snow does not fall in May through November.Daylight
In September, the average length of the day in Nomi is 12h and 25min.On the first day of September in Nomi, sunrise is at 05:25 and sunset at 18:22. On the last day of the month, sunrise is at 05:48 and sunset at 17:39 JST.
Sunshine
The average sunshine in September is 8.8h.UV index
In Nomi, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 5 in September leads to these guidelines:
Take precautions - Protection against skin and eye damage is obliged. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nomi, Japan
- Average high temperature in September: 24.5°C
The warmest month (with the highest average high temperature) is August (29.1°C).
The month with the lowest average high temperature is January (3.8°C).
- Average low temperature in September: 18.3°C
The month with the highest average low temperature is August (22.3°C).
The coldest month (with the lowest average low temperature) is January (-0.6°C).
Average pressure in September
Nomi, Japan
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is February (1019.5mbar).
The month with the lowest atmospheric pressure is June (1009mbar).
Average wind speed in September
Nomi, Japan
- Average wind speed in September: 9.2km/h
The windiest month (with the highest average wind speed) is December (13.3km/h).
The calmest month (with the lowest average wind speed) is June (8km/h).
Average humidity in September
Nomi, Japan
- Average humidity in September: 79%
The months with the highest relative humidity are January and July (82%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Nomi, Japan
- Average rainfall in September: 79mm
The wettest month (with the highest rainfall) is July (107mm).
The driest month (with the least rainfall) is February (44mm).
Average rainfall days in September
Nomi, Japan
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is February (10.9 days).
Average snowfall in September
Nomi, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (131mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Nomi, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Nomi, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Nomi, Japan
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is May (18 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in September
Nomi, 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 1).
Average cloud cover in September
Nomi, Japan
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Nomi, Japan
- Average visibility in September: 10km
The months with the highest visibility are March, August, September, October and November (10km).
The months with the lowest visibility are January, February, April, May, June, July and December (9km).
