Namerikawa
Japan
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Namerikawa, Japan

The best months for a swim in Namerikawa, Japan, are August and September, with a perfect temperature - varying between 25°C (77°F) and 29°C (84.2°F), and scarce rainfall.
In Namerikawa, Japan, in January, the average water temperature is 13.2°C (55.8°F). Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in January »

In Namerikawa, Japan, the average seawater temperature in February is 11.2°C (52.2°F). Note: Swimming in 11.2°C (52.2°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in February »

With an average sea temperature of 10.8°C (51.4°F), March is the month with the coldest seawater in Namerikawa, Japan. Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in March »

In Namerikawa, Japan, the average seawater temperature in April is 12.4°C (54.3°F). Note: Swimming in 12.4°C (54.3°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in April »

In Namerikawa, Japan, the average seawater temperature in May is 15.4°C (59.7°F). Note: For most, swimming in 15.4°C (59.7°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F). Weather in May »

In June, the average sea temperature in Namerikawa, Japan, is 20.3°C (68.5°F). Note: For most, swimming in 20.3°C (68.5°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F). Weather in June »

In Namerikawa, Japan, in July, the average water temperature is 24.8°C (76.6°F). Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 24.8°C (76.6°F) water. Weather in July »

The ideal sea water temperature of 27°C (80.6°F) make August the best time for swimming and other water activities in Namerikawa, Japan. The month with the warmest seawater is August, with an average sea temperature of 27°C (80.6°F). Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable. Weather in August »

The ideal sea water temperature of 25.5°C (77.9°F) make September the best time for swimming and other water activities in Namerikawa, Japan. In September, the average sea temperature is 25.5°C (77.9°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. Weather in September »

In Namerikawa, Japan, in October, the average water temperature is 21.7°C (71.1°F). Note: For swimming, a surface water temperature of 21.7°C (71.1°F) is not enjoyable for the majority. Weather in October »

In November, the average sea temperature in Namerikawa, Japan, is 18.6°C (65.5°F). Note: For most, swimming in 18.6°C (65.5°F) is not an enjoyable activity. Weather in November »

In December, the average sea temperature in Namerikawa, Japan, is 15.2°C (59.4°F). Note: For most, swimming in 15.2°C (59.4°F) is not an enjoyable activity. Weather in December »

When is the sea coldest in Namerikawa?

With an average sea temperature of 10.8°C (51.4°F), March is the month with the coldest seawater in Namerikawa.

When are the longest days in Namerikawa?

With an average of 14.6h of daylight, June has the longest days of the year.

What is the month with the warmest sea water in Namerikawa?

August is the month with the warmest seawater in Namerikawa, with an average sea temperature of 27°C (80.6°F).

What is the month with the shortest days in Namerikawa?

December has the shortest days of the year in Namerikawa, with an average of 9.7h of daylight.
Average sea temperature - Namerikawa, Japan

The best month for swimming (with the highest average sea temperature) is August (27°C).
The coldest month (with the lowest average sea temperature) is March (10.8°C).

Average daylight - Namerikawa, Japan

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.7h).