September weather forecastHatsubara, Japan

September

Weather in September

September, the first month of the autumn in Hatsubara, is still a warm month, with temperature in the range of an average high of 24.1°C (75.4°F) and an average low of 18.5°C (65.3°F).

Temperature

The move into September indicates a slight reduction in the average high-temperature, down from August's warm 27.7°C (81.9°F) to a still moderately hot 24.1°C (75.4°F). Hatsubara's temperature tends to fall to an average low of 18.5°C (65.3°F) during the nights of September.

Humidity

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

Rainfall

In September, in Hatsubara, the rain falls for 13.6 days. Throughout September, 92mm (3.62") of precipitation is accumulated. Throughout the year, there are 134.2 rainfall days, and 724mm (28.5") of precipitation is accumulated.

Snowfall

In Hatsubara, snow does not fall in May through November.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of September, sunrise is at 05:05 and sunset at 18:06. On the last day of the month, sunrise is at 05:30 and sunset at 17:20 JST.

Sunshine

In Hatsubara, Japan, the average sunshine in September is 7.4h.

UV index

In Hatsubara, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 5 in September translates into these instructions:
Be vigilant - Preventing sunburn is recommended. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

In September, in Hatsubara, the average high-temperature is 24.1°C (75.4°F), and the average low-temperature is 18.5°C (65.3°F). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 32°C (89.6°F).

The average relative humidity in September in Hatsubara is 79%.

In September, in Hatsubara, the rain falls for 13.6 days. Throughout September, 92mm (3.62") of precipitation is accumulated.

In Hatsubara, Japan, snow does not fall in May through November.

In Hatsubara, Japan, the average day length in September is 12h and 27min.

In September, on the first day of the month, sunrise is at 05:05 and sunset at 18:06. On the last day of the month, in Hatsubara, sunrise is at 05:30 and sunset at 17:20 JST.

The average sunshine duration in September in Hatsubara, Japan, is 7.4h.

The average daily maximum UV index in September in Hatsubara is 5. A UV Index value of 3 to 5 symbolizes a medium health risk 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 snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Hatsubara, Japan

  • Average high temperature in September: 24.1°C

The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (3.8°C).

  • Average low temperature in September: 18.5°C

The month with the highest average low temperature is August (21.7°C).
The coldest month (with the lowest average low temperature) is February (-1°C).

Average pressure in September
Hatsubara, Japan

  • Average pressure in September: 1014mbar

The month with the highest atmospheric pressure is November (1018.6mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).

Average wind speed in September
Hatsubara, Japan

  • Average wind speed in September: 10.9km/h

The windiest month (with the highest average wind speed) is January (15.4km/h).
The calmest month (with the lowest average wind speed) is July (9km/h).

Average humidity in September
Hatsubara, Japan

  • Average humidity in September: 79%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is April (70%).

Average rainfall in September
Hatsubara, Japan

  • Average rainfall in September: 92mm

The wettest month (with the highest rainfall) is October (105mm).
The driest month (with the least rainfall) is February (23mm).

Average rainfall days in September
Hatsubara, Japan

  • Average rainfall days in September: 13.6 days

The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in September
Hatsubara, Japan

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (62mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Hatsubara, Japan

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Hatsubara, Japan

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 7h and 24min

The month with the most sunshine is May (Average sunshine: 9h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).

Average sunshine days in September
Hatsubara, Japan

  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is May (21.3 days).
The month with the least sunshine days is July (13.4 days).

Average UV index in September
Hatsubara, Japan

  • Average UV index in September: 5

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).

Average cloud cover in September
Hatsubara, Japan

  • Average cloud cover in September: 42

The month with the most cloud cover is July (Cloud cover 48).
The months with the least cloud cover are May and November (Cloud cover 36).

Average visibility in September
Hatsubara, Japan

  • Average visibility in September: 9km

The months with the highest visibility are February, March, April, October, November and December (10km).
The months with the lowest visibility are January, May, June, July, August and September (9km).