Hekinan
Japan
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Hekinan, Japan

The first month of the autumn, September, is still a warm month in Hekinan, Japan, with average temperature ranging between max 27.4°C (81.3°F) and min 20.7°C (69.3°F).

Temperature

In September, the average high-temperature slightly decreases, from a hot 30.9°C (87.6°F) in August, to a moderately hot 27.4°C (81.3°F). In Hekinan, the average low-temperature is 20.7°C (69.3°F).

Rainfall

The month with the most rainfall is September when 257.2mm (10.1") of precipitation is typically aggregated.

Sea temperature

In September, the average sea temperature is 25.9°C (78.6°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

The average length of the day in Hekinan is 12.4h.

Sunshine

The average sunshine in September in Hekinan, Japan, is 5h.

What is the temperature in September in Hekinan?

In Hekinan, in September, the average high-temperature is 27.4°C (81.3°F), and the average low-temperature is 20.7°C (69.3°F).

How much does it rain in Hekinan in September?

Throughout September, 257.2mm (10.1") of precipitation is accumulated.

What is the rainiest month in Hekinan?

The month with the most rainfall in Hekinan, Japan, is September when 257.2mm (10.1") of precipitation is typically aggregated.

What is the water temperature in September in Hekinan?

In Hekinan, the average seawater temperature in September is 25.9°C (78.6°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in September in Hekinan?

The average length of the day in September is 12.4h.

How long on average sun shines in September in Hekinan?

In Hekinan, the average sunshine in September is 5h.
Average temperature in September - Hekinan, Japan
  • Average high temperature in September: 27.4°C

The warmest month (with the highest average high temperature) is August (30.9°C).
The month with the lowest average high temperature is January (9.2°C).

  • Average low temperature in September: 20.7°C

The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is February (1.9°C).

Average rainfall in September - Hekinan, Japan
  • Average rainfall in September: 257.2mm

The wettest month (with the highest rainfall) is September (257.2mm).
The driest month (with the lowest rainfall) is December (38.9mm).

Average sea temperature in September - Hekinan, Japan
  • Average sea temperature in September: 25.9°C

The best month for swimming (with the highest average sea temperature) is August (27.1°C).
Coldest months (with the lowest average sea temperature) are February and March (14.6°C).

Average daylight in September / Average sunshine in September - Hekinan, Japan
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 5h

The month with most sunshine is August (Average sunshine: 6.9h).
The month with least sunshine is June (Average sunshine: 4.6h).