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

May weather forecast and climate
Hekinan, Japan

May, the last month of the spring, in Hekinan, is a pleasant month, with average temperature varying between 22.7°C (72.9°F) and 14.7°C (58.5°F).

Temperature

In May, the average high-temperature slightly increases, from an enjoyable 18.5°C (65.3°F) in April, to a pleasant 22.7°C (72.9°F). In May, the average low-temperature is 14.7°C (58.5°F).

Rainfall

Throughout May, in Hekinan, 178.7mm (7") of precipitation is accumulated. Throughout the year, in Hekinan, 1652.4mm (65.1") of rain is accumulated.

Sea temperature

In Hekinan, Japan, in May, the average water temperature is 18.7°C (65.7°F).
Note: For swimming, a surface water temperature of 18.7°C (65.7°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

In Hekinan, Japan, the average length of the day is 14h.

Sunshine

The average sunshine in May is 6.2h.

What is the temperature in May in Hekinan?

The average high-temperature, in May, is 22.7°C (72.9°F), while the average low-temperature is 14.7°C (58.5°F).

How much does it rain in Hekinan in May?

Throughout May, 178.7mm (7") of precipitation is accumulated.

What is the sea water temperature in May in Hekinan?

In May, the average sea temperature is 18.7°C (65.7°F). For swimming, a surface water temperature of 18.7°C (65.7°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Hekinan have in May?

In Hekinan, Japan, the average length of the day in May is 14h.

How long on average sun shines in May in Hekinan?

In Hekinan, Japan, the average sunshine in May is 6.2h.
Average temperature in May - Hekinan, Japan
  • Average high temperature in May: 22.7°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 May: 14.7°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 May - Hekinan, Japan
  • Average rainfall in May: 178.7mm

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 May - Hekinan, Japan
  • Average sea temperature in May: 18.7°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 May / Average sunshine in May - Hekinan, Japan
  • Average daylight in May: 14h

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 May: 6.2h

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