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 sea temperature 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
Weather in September
Temperature
The beginning of September subtly marks a decrease in the average high-temperature, transitioning from a hot 31.6°C (88.9°F) in August to a warm 27.3°C (81.1°F). The month of September records an average low-temperature of 20.2°C (68.4°F) in Sakai.Heat index
The heat index for September is calculated to be a hot 30°C (86°F). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.Take note of the fact that heat index values are based on shaded circumstances with light airflows. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
In Sakai, the average relative humidity in September is 75%.Rainfall
In Sakai, Japan, in September, during 12 rainfall days, 34mm (1.34") of precipitation is typically accumulated. Throughout the year, in Sakai, there are 149 rainfall days, and 436mm (17.17") of precipitation is accumulated.Snowfall
April through November are months without snowfall in Sakai.Sea temperature
In Sakai, Japan, the average seawater temperature in September is 26.3°C (79.3°F).Note: For swimming, diving, or other water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) provide the most enjoyable experience for extended periods without discomfort.
Daylight
In September, the average length of the day in Sakai is 12h and 24min.On the first day of the month, sunrise is at 05:31 and sunset at 18:24. On the last day of September, sunrise is at 05:52 and sunset at 17:43 JST.
Sunshine
The average sunshine in September in Sakai is 9.1h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Prioritize safety - Recommendations to avert sunburn are shared. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Sakai?
What is the average humidity in September in Sakai?
How much does it rain in Sakai in September?
When it does not snow in Sakai?
How warm is the water in September in Sakai?
What is the average length of the day in September in Sakai?
When are sunrise and sunset in September in Sakai?
How long on average sun shines in September in Sakai?
What is the UV index reading in September in Sakai?
Average temperature in September
Sakai, Japan
- Average high temperature in September: 27.3°C
The warmest month (with the highest average high temperature) is August (31.6°C).
The month with the lowest average high temperature is January (7.6°C).
- Average low temperature in September: 20.2°C
The month with the highest average low temperature is August (24.4°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure in September
Sakai, Japan
- Average pressure in September: 1012.7mbar
The month with the highest atmospheric pressure is February (1019.7mbar).
The month with the lowest atmospheric pressure is June (1008.8mbar).
Average wind speed in September
Sakai, Japan
- Average wind speed in September: 7.9km/h
The windiest month (with the highest average wind speed) is January (10.6km/h).
The calmest month (with the lowest average wind speed) is June (7.8km/h).
Average humidity in September
Sakai, Japan
- Average humidity in September: 75%
The month with the highest relative humidity is July (77%).
The month with the lowest relative humidity is May (69%).
Average rainfall in September
Sakai, Japan
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is July (79mm).
The driest month (with the least rainfall) is November (20mm).
Average rainfall days in September
Sakai, Japan
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is May (8.7 days).
Average snowfall in September
Sakai, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (35mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Sakai, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6 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
Sakai, Japan
- Average sea temperature in September: 26.3°C
The best month for swimming (with the highest average sea temperature) is August (27.7°C).
The coldest month (with the lowest average sea temperature) is March (13.9°C).
Average daylight in September /
Average sunshine in September
Sakai, 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: 9h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).
Average sunshine days in September
Sakai, Japan
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is May (20 days).
The month with the least sunshine days is January (10.8 days).
Average UV index in September
Sakai, Japan
- Average UV index in September: 5
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 2).
Average cloud cover in September
Sakai, Japan
- Average cloud cover in September: 35
The months with the most cloud cover are January and February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Sakai, Japan
- Average visibility in September: 9km
The months with the highest visibility are February, March, November and December (10km).
The months with the lowest visibility are January, April, May, June, July, August, September and October (9km).
Sakai, Japan
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