September weather forecastOfunato, Japan

September

Weather in September

September, the first month of the autumn in Ofunato, is still a pleasant month, with an average temperature ranging between min 17.1°C (62.8°F) and max 22.2°C (72°F).

Temperature

In the transition to September, Ofunato observes a minor drop in the average high-temperature, shifting from a warm 25.3°C (77.5°F) in August to a pleasant 22.2°C (72°F). September nights in Ofunato experience a consistent temperature drop to a refreshing 17.1°C (62.8°F).

Humidity

In September, the average relative humidity in Ofunato is 83%.

Rainfall

In September, the rain falls for 14.8 days. Throughout September, 84mm (3.31") of precipitation is accumulated. Throughout the year, there are 152.7 rainfall days, and 882mm (34.72") of precipitation is accumulated.

Snowfall

In Ofunato, snow does not fall in May through October.

Sea temperature

In Ofunato, the average seawater temperature in September is 21.6°C (70.9°F).
Note: In water of 21.6°C (70.9°F), the majority of people do not enjoy swimming. Breathing becomes increasingly hard to manage as the temperature drops from 21°C (69.8°F) to 15°C (59°F).

Daylight

In September, the average length of the day in Ofunato, Japan, is 12h and 28min.
On the first day of September, sunrise is at 05:02 and sunset at 18:04. On the last day of the month, sunrise is at 05:28 and sunset at 17:17 JST.

Sunshine

In Ofunato, the average sunshine in September is 7.3h.

UV index

In Ofunato, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 5 during September leads to these advisories:
Be vigilant - Preventing sunburn is recommended. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Warning! The reflection of sand and water increases the UV dose.

Frequently asked questions

In Ofunato, 22.2°C (72°F) is the average high-temperature and 17.1°C (62.8°F) is the average low-temperature during September.

In September, the average relative humidity in Ofunato, Japan, is 83%.

In Ofunato, in September, during 14.8 rainfall days, 84mm (3.31") of precipitation is typically accumulated.

May through October are months without snowfall.

In September, the average sea temperature in Ofunato, Japan, is 21.6°C (70.9°F). Swimming in 21.6°C (70.9°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

In September, the average day length in Ofunato is 12h and 28min.

On the first day of September in Ofunato, Japan, sunrise is at 05:02 and sunset at 18:04. On the last day of the month, sunrise is at 05:28 and sunset at 17:17 JST.

The average sunshine duration in September is 7.3h.

In September, the average daily maximum UV index in Ofunato is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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 sea temperature
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Ofunato, Japan

  • Average high temperature in September: 22.2°C

The warmest month (with the highest average high temperature) is August (25.3°C).
The month with the lowest average high temperature is January (1.8°C).

  • Average low temperature in September: 17.1°C

The month with the highest average low temperature is August (20.3°C).
The coldest month (with the lowest average low temperature) is February (-2.8°C).

Average pressure in September
Ofunato, Japan

  • Average pressure in September: 1014mbar

The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is July (1009.3mbar).

Average wind speed in September
Ofunato, Japan

  • Average wind speed in September: 11.6km/h

The windiest month (with the highest average wind speed) is January (19.1km/h).
The calmest month (with the lowest average wind speed) is July (9.7km/h).

Average humidity in September
Ofunato, Japan

  • Average humidity in September: 83%

The month with the highest relative humidity is July (88%).
The months with the lowest relative humidity are March and April (75%).

Average rainfall in September
Ofunato, Japan

  • Average rainfall in September: 84mm

The wettest month (with the highest rainfall) is October (147mm).
The driest month (with the least rainfall) is February (26mm).

Average rainfall days in September
Ofunato, Japan

  • Average rainfall days in September: 14.8 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is February (6.2 days).

Average snowfall in September
Ofunato, Japan

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (74mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September
Ofunato, Japan

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in September
Ofunato, Japan

  • Average sea temperature in September: 21.6°C

The best month for swimming (with the highest average sea temperature) is August (22.6°C).
The coldest month (with the lowest average sea temperature) is March (6.8°C).

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

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 7h and 18min

The month with the most sunshine is May (Average sunshine: 8h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in September
Ofunato, Japan

  • Average sunshine days in September: 12.1 days

The month with the most sunshine days is January (18 days).
The month with the least sunshine days is July (8.3 days).

Average UV index in September
Ofunato, 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, March, November and December (UV index 2).

Average cloud cover in September
Ofunato, Japan

  • Average cloud cover in September: 42

The month with the most cloud cover is July (Cloud cover 52).
The month with the least cloud cover is November (Cloud cover 36).

Average visibility in September
Ofunato, Japan

  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, October, November and December (10km).
The month with the lowest visibility is July (8km).