September weather forecast
Maehara, Japan

September

Weather in September

September, the first month of the autumn in Maehara, is also a moderately hot month, with an average temperature varying between 27.2°C (81°F) and 28.7°C (83.7°F).

Temperature

The arrival of September marks a slight shift to an average high-temperature of a still moderately hot 28.7°C (83.7°F) from August's 29.5°C (85.1°F). Maehara maintains a minor drop in temperature during September nights, with averages of 27.2°C (81°F).

Heat index

September's heat index is appraised at a hot 34°C (93.2°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.

Humidity

In Maehara, the average relative humidity in September is 79%.

Rainfall

In Maehara, during September, the rain falls for 20.3 days and regularly aggregates up to 144mm (5.67") of precipitation. Throughout the year, in Maehara, there are 229 rainfall days, and 1437mm (56.57") of precipitation is accumulated.

Daylight

In Maehara, the average length of the day in September is 12h and 19min.
On the first day of September in Maehara, Japan, sunrise is at 06:09 and sunset at 18:48. On the last day of the month, sunrise is at 06:21 and sunset at 18:16 JST.

Sunshine

In Maehara, the average sunshine in September is 8.3h.

UV index

June through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 7 in September leads to these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

Frequently asked questions

How hot does it get in Maehara in September?
The average high-temperature, in September, in Maehara, is 28.7°C (83.7°F), while the average low-temperature is 27.2°C (81°F). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 34°C (93.2°F).
What is the average humidity in September in Maehara?
The average relative humidity in September is 79%.
How much does it rain in Maehara in September?
In Maehara, Japan, during September, the rain falls for 20.3 days and regularly aggregates up to 144mm (5.67") of precipitation.
How many hours of daylight does Maehara have in September?
In Maehara, the average day length in September is 12h and 19min.
When is the sunrise / sunset in September in Maehara?
On the first day of September in Maehara, Japan, sunrise is at 06:09 and sunset at 18:48. On the last day of the month, sunrise is at 06:21 and sunset at 18:16 JST.
How many hours of sunshine does Maehara have in September?
In September, the average sunshine duration in Maehara is 8.3h.
What are the months with the highest UV index in Maehara?
The months with the highest UV index in Maehara are June through September, with an average maximum UV index of 7.
What is the UV index intensity in September in Maehara?
In September, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Maehara, 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
Maehara, 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
Maehara, 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
Maehara, 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
Maehara, 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
Maehara, 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 daylight in September /
Average sunshine in September
Maehara, Japan
  • Average daylight in September: 12h and 2min

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 2min

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
Maehara, 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
Maehara, 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
Maehara, 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
Maehara, 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).

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