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 shift from August to September includes a small decrease in the average high-temperature, from a moderately hot 29.3°C (84.7°F) to a still warm 25°C (77°F). September nights cool down to an average low-temperature of 17.8°C (64°F).Humidity
In September, the average relative humidity is 83%.Rainfall
In Hatsukaichi, in September, during 15.4 rainfall days, 105mm (4.13") of precipitation is typically accumulated. In Hatsukaichi, during the entire year, the rain falls for 174 days and collects up to 1174mm (46.22") of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Hatsukaichi, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 05:44 and sunset at 18:37. On the last day of September, sunrise is at 06:04 and sunset at 17:56 JST.
Sunshine
The average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Undertake precautions - Guarding against sun damage is counselled. When the Sun is at its strongest around midday, find shade and limit exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Hatsukaichi in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Hatsukaichi have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Hatsukaichi, Japan
- Average high temperature in September: 25°C
The warmest month (with the highest average high temperature) is August (29.3°C).
The month with the lowest average high temperature is January (6.1°C).
- Average low temperature in September: 17.8°C
The month with the highest average low temperature is August (21.8°C).
The coldest month (with the lowest average low temperature) is January (0.3°C).
Average pressure in September
Hatsukaichi, Japan
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is January (1021.2mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).
Average wind speed in September
Hatsukaichi, Japan
- Average wind speed in September: 6.2km/h
The windiest month (with the highest average wind speed) is January (8.9km/h).
The calmest month (with the lowest average wind speed) is June (5.5km/h).
Average humidity in September
Hatsukaichi, Japan
- Average humidity in September: 83%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
Hatsukaichi, Japan
- Average rainfall in September: 105mm
The wettest month (with the highest rainfall) is July (226mm).
The driest month (with the least rainfall) is November (44mm).
Average rainfall days in September
Hatsukaichi, Japan
- Average rainfall days in September: 15.4 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (10.8 days).
Average snowfall in September
Hatsukaichi, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (30mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Hatsukaichi, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Hatsukaichi, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Hatsukaichi, Japan
- Average sunshine days in September: 11.8 days
The month with the most sunshine days is May (17.7 days).
The month with the least sunshine days is July (8 days).
Average UV index in September
Hatsukaichi, 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
Hatsukaichi, Japan
- Average cloud cover in September: 40
The month with the most cloud cover is July (Cloud cover 50).
The months with the least cloud cover are October and November (Cloud cover 35).
Average visibility in September
Hatsukaichi, Japan
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, October, November and December (9km).
The month with the lowest visibility is July (7km).
