September weather forecastUchiumi, Japan
September
Weather in September
September, the first month of the autumn in Uchiumi, is also a moderately hot month, with temperature in the range of an average low of 23.3°C (73.9°F) and an average high of 27°C (80.6°F).Temperature
September's onset sees an average high-temperature of a still warm 27°C (80.6°F), exhibiting a slight fluctuation from the previous month. September in Uchiumi witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 23.3°C (73.9°F).Heat index
The heat index in September is appraised at a tropical 30°C (86°F). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.One should consider that heat index numbers are for shaded settings and light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
In Uchiumi, the average relative humidity in September is 78%.Rainfall
In Uchiumi, during September, the rain falls for 18.7 days and regularly aggregates up to 147mm (5.79") of precipitation. Throughout the year, there are 156.1 rainfall days, and 1143mm (45") of precipitation is accumulated.Snowfall
January, March through November are months without snowfall.Daylight
The average length of the day in September in Uchiumi is 12h and 22min.On the first day of September, sunrise is at 05:49 and sunset at 18:38. On the last day of the month, sunrise is at 06:07 and sunset at 18:00 JST.
Sunshine
In September, the average sunshine in Uchiumi is 8.4h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Uchiumi, Japan
- Average high temperature in September: 27°C
The warmest month (with the highest average high temperature) is August (29.5°C).
The month with the lowest average high temperature is January (11.9°C).
- Average low temperature in September: 23.3°C
The month with the highest average low temperature is August (25.7°C).
The coldest month (with the lowest average low temperature) is January (6.5°C).
Average pressure in September
Uchiumi, Japan
- Average pressure in September: 1011.3mbar
The month with the highest atmospheric pressure is January (1021.1mbar).
The month with the lowest atmospheric pressure is June (1008.2mbar).
Average wind speed in September
Uchiumi, Japan
- Average wind speed in September: 13.8km/h
The windiest month (with the highest average wind speed) is October (15.4km/h).
The calmest month (with the lowest average wind speed) is June (12.1km/h).
Average humidity in September
Uchiumi, 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 (68%).
Average rainfall in September
Uchiumi, Japan
- Average rainfall in September: 147mm
The wettest month (with the highest rainfall) is June (194mm).
The driest month (with the least rainfall) is January (34mm).
Average rainfall days in September
Uchiumi, Japan
- Average rainfall days in September: 18.7 days
The month with the highest number of rainy days is September (18.7 days).
The month with the least rainy days is January (7.5 days).
Average snowfall days in September
Uchiumi, Japan
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and December (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Uchiumi, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is October (Average sunshine: 5h and 48min).
Average sunshine days in September
Uchiumi, Japan
- Average sunshine days in September: 8.7 days
The month with the most sunshine days is January (22.7 days).
The month with the least sunshine days is September (8.7 days).
Average UV index in September
Uchiumi, Japan
- Average UV index in September: 6
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Uchiumi, Japan
- Average cloud cover in September: 43
The month with the most cloud cover is June (Cloud cover 53).
The month with the least cloud cover is January (Cloud cover 27).
Average visibility in September
Uchiumi, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, August, September, October, November and December (10km).
The months with the lowest visibility are June and July (9km).
