September weather forecastUwajima, Japan
September
Weather in September
September, the first month of the autumn in Uwajima, is also a moderately hot month, with temperature in the range of an average high of 26°C (78.8°F) and an average low of 21.2°C (70.2°F).Temperature
As September arrives, Uwajima's weather displays a minor decrease in high-temperatures, transitioning from August's 29.2°C (84.6°F) to a still warm 26°C (78.8°F). September sees a slight dip to an average low temperature of 21.2°C (70.2°F) from the daytime highs.Humidity
The average relative humidity in September in Uwajima is 80%.Rainfall
In Uwajima, during September, the rain falls for 15 days and regularly aggregates up to 62mm (2.44") of precipitation. In Uwajima, during the entire year, the rain falls for 158.8 days and collects up to 720mm (28.35") of precipitation.Snowfall
In Uwajima, snow does not fall in April through November.Sea temperature
In Uwajima, the average seawater temperature in September is 26.9°C (80.4°F).Note: For swimming, diving, and similar activities, the water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered delightful, allowing for extended periods of enjoyment without discomfort.
Daylight
In Uwajima, Japan, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 05:44 and sunset at 18:35. On the last day of September, in Uwajima, Japan, sunrise is at 06:03 and sunset at 17:55 JST.
Sunshine
The average sunshine in September in Uwajima is 9.3h.UV index
In September, the average daily maximum UV index in Uwajima is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The average daily UV index of 5 in September transforms into the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Take caution! The UV rays from the Sun gain strength from sand and water reflections.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Uwajima, Japan
- Average high temperature in September: 26°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (9°C).
- Average low temperature in September: 21.2°C
The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is January (4.7°C).
Average pressure in September
Uwajima, Japan
- Average pressure in September: 1012.1mbar
The month with the highest atmospheric pressure is January (1021mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).
Average wind speed in September
Uwajima, Japan
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is January (16.8km/h).
The calmest month (with the lowest average wind speed) is June (8.8km/h).
Average humidity in September
Uwajima, Japan
- Average humidity in September: 80%
The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are January, February and March (72%).
Average rainfall in September
Uwajima, Japan
- Average rainfall in September: 62mm
The wettest month (with the highest rainfall) is July (117mm).
The driest month (with the least rainfall) is January (23mm).
Average rainfall days in September
Uwajima, Japan
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is February (9.8 days).
Average snowfall in September
Uwajima, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Uwajima, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.1 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
Uwajima, Japan
- Average sea temperature in September: 26.9°C
The best month for swimming (with the highest average sea temperature) is August (27.8°C).
The coldest month (with the lowest average sea temperature) is February (17°C).
Average daylight in September /
Average sunshine in September
Uwajima, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 12min).
Average sunshine days in September
Uwajima, Japan
- Average sunshine days in September: 12 days
The month with the most sunshine days is May (18.8 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in September
Uwajima, 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
Uwajima, Japan
- Average cloud cover in September: 36
The month with the most cloud cover is June (Cloud cover 47).
The months with the least cloud cover are August and November (Cloud cover 32).
Average visibility in September
Uwajima, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, August, September, October, November and December (10km).
The months with the lowest visibility are April, May, June and July (9km).
