September weather forecastHaebaru, Japan
September
Weather in September
September, the first month of the autumn in Haebaru, is also a moderately hot month, with an average temperature varying between 28.7°C (83.7°F) and 27.2°C (81°F).Temperature
September records an average high-temperature of a still warm 28.7°C (83.7°F), indicating a minor variation from the preceding month. Registering an almost steady temperature, Haebaru's nights in September see an average low of 27.2°C (81°F).Heat index
September's average heat index is calculated to be a tropical 34°C (93.2°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Humidity
In Haebaru, the average relative humidity in September is 79%.Rainfall
In Haebaru, in September, during 20.3 rainfall days, 144mm (5.67") of precipitation is typically accumulated. In Haebaru, during the entire year, the rain falls for 229 days and collects up to 1437mm (56.57") of precipitation.Sea temperature
In Haebaru, the average seawater temperature in September is 28.3°C (82.9°F).Note: Swimming, diving, and other water endeavors at temperatures between 25°C (77°F) and 29°C (84.2°F) are considered enjoyable and satisfying for extended periods without discomfort.
Daylight
In September, the average length of the day in Haebaru is 12h and 19min.On the first day of the month, sunrise is at 06:09 and sunset at 18:48. On the last day of September, sunrise is at 06:21 and sunset at 18:16 JST.
Sunshine
In Haebaru, the average sunshine in September is 8.3h.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 7 in September transforms into the following instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Caution! The Sun's UV rays become stronger due to reflections from water and sand.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Haebaru, Japan
- Average high temperature in September: 28.7°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 (18.8°C).
- Average low temperature in September: 27.2°C
The month with the highest average low temperature is August (28.2°C).
The coldest month (with the lowest average low temperature) is January (16.8°C).
Average pressure in September
Haebaru, Japan
- Average pressure in September: 1009.1mbar
The month with the highest atmospheric pressure is January (1020.9mbar).
The month with the lowest atmospheric pressure is August (1006.6mbar).
Average wind speed in September
Haebaru, Japan
- Average wind speed in September: 22km/h
The windiest month (with the highest average wind speed) is December (27km/h).
The calmest month (with the lowest average wind speed) is May (19.2km/h).
Average humidity in September
Haebaru, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is June (87%).
The month with the lowest relative humidity is January (72%).
Average rainfall in September
Haebaru, Japan
- Average rainfall in September: 144mm
The wettest month (with the highest rainfall) is June (205mm).
The driest month (with the least rainfall) is February (61mm).
Average rainfall days in September
Haebaru, Japan
- Average rainfall days in September: 20.3 days
The month with the highest number of rainy days is January (22.6 days).
The months with the least rainy days are March and November (16.5 days).
Average sea temperature in September
Haebaru, Japan
- Average sea temperature in September: 28.3°C
The best month for swimming (with the highest average sea temperature) is August (28.7°C).
The coldest month (with the lowest average sea temperature) is February (20.9°C).
Average daylight in September /
Average sunshine in September
Haebaru, Japan
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Haebaru, Japan
- Average sunshine days in September: 7.4 days
The month with the most sunshine days is April (11 days).
The month with the least sunshine days is January (5.4 days).
Average UV index in September
Haebaru, Japan
- Average UV index in September: 7
The months with the highest UV index are June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in September
Haebaru, Japan
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in September
Haebaru, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is May (9km).
