September weather forecastMitai, Japan

September

Weather in September

The first month of the autumn, September, is still a warm month in Mitai, Japan, with an average temperature varying between 16.2°C (61.2°F) and 25.3°C (77.5°F).

Temperature

In Mitai, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's 29.1°C (84.4°F) to a still moderately hot 25.3°C (77.5°F). An average minimum temperature of 16.2°C (61.2°F) marks the month of September in Mitai.

Humidity

The average relative humidity in September is 86%.

Rainfall

In September, the rain falls for 21.4 days. Throughout September, 143mm (5.63") of precipitation is accumulated. In Mitai, during the entire year, the rain falls for 197 days and collects up to 1432mm (56.38") of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 05:49 and sunset at 18:39. On the last day of the month, sunrise is at 06:08 and sunset at 18:01 JST.

Sunshine

In September, the average sunshine is 7.1h.

UV index

In Mitai, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, a daily UV index of 5 turns into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

The high-temperature, in September, in Mitai, is 25.3°C (77.5°F), while the low-temperature averages to 16.2°C (61.2°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 calculated to be 36°C (96.8°F).

The average relative humidity in September is 86%.

In Mitai, during September, the rain falls for 21.4 days and regularly aggregates up to 143mm (5.63") of precipitation.

May through October are months without snowfall.

In September, the average day length in Mitai is 12h and 23min.

On the first day of September, sunrise is at 05:49 and sunset at 18:39. On the last day of the month, sunrise is at 06:08 and sunset at 18:01 JST.

In Mitai, the average sunshine duration in September is 7.1h.

In Mitai, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate 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 snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Mitai, Japan

  • Average high temperature in September: 25.3°C

The warmest month (with the highest average high temperature) is August (29.1°C).
The month with the lowest average high temperature is January (6.5°C).

  • Average low temperature in September: 16.2°C

The month with the highest average low temperature is August (19.7°C).
The coldest month (with the lowest average low temperature) is January (-2.5°C).

Average pressure in September
Mitai, Japan

  • Average pressure in September: 1011.8mbar

The month with the highest atmospheric pressure is January (1021.6mbar).
The month with the lowest atmospheric pressure is June (1008.3mbar).

Average wind speed in September
Mitai, Japan

  • Average wind speed in September: 5.7km/h

The windiest month (with the highest average wind speed) is March (6.7km/h).
The calmest month (with the lowest average wind speed) is November (5.2km/h).

Average humidity in September
Mitai, Japan

  • Average humidity in September: 86%

The month with the highest relative humidity is July (88%).
The month with the lowest relative humidity is May (77%).

Average rainfall in September
Mitai, Japan

  • Average rainfall in September: 143mm

The wettest month (with the highest rainfall) is July (276mm).
The driest month (with the least rainfall) is November (45mm).

Average rainfall days in September
Mitai, Japan

  • Average rainfall days in September: 21.4 days

The month with the highest number of rainy days is July (27.9 days).
The month with the least rainy days is January (9.5 days).

Average snowfall in September
Mitai, Japan

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (137mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September
Mitai, Japan

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 7h and 6min

The month with the most sunshine is May (Average sunshine: 8h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in September
Mitai, Japan

  • Average sunshine days in September: 6.9 days

The month with the most sunshine days is October (15.8 days).
The month with the least sunshine days is July (2.2 days).

Average UV index in September
Mitai, Japan

  • Average UV index in September: 5

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

Average cloud cover in September
Mitai, Japan

  • Average cloud cover in September: 59

The months with the most cloud cover are June and July (Cloud cover 66).
The month with the least cloud cover is January (Cloud cover 47).

Average visibility in September
Mitai, Japan

  • Average visibility in September: 7km

The months with the highest visibility are March and April (8km).
The months with the lowest visibility are June and July (6km).