Narashino
Japan
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Narashino, Japan

August is the best period for swimming and other water activities in Narashino, Japan, as the sea temperature is 25.3°C (77.5°F)
In Narashino, Japan, in January, the average water temperature is 15.9°C (60.6°F). Note: Swimming in 15.9°C (60.6°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F). Weather in January »

With an average sea temperature of 14.4°C (57.9°F), February is the month with the coldest seawater in Narashino, Japan. Note: Swimming in 14.4°C (57.9°F) is considered life-threatening. Weather in February »

In Narashino, Japan, the average seawater temperature in March is 14.7°C (58.5°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 March »

In April, the average sea temperature in Narashino, Japan, is 16.5°C (61.7°F). Note: For swimming, a surface water temperature of 16.5°C (61.7°F) is not enjoyable for the majority. Weather in April »

In Narashino, Japan, in May, the average water temperature is 18.4°C (65.1°F). Note: For most, swimming in 18.4°C (65.1°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 Narashino, Japan, in June, the average water temperature is 20.9°C (69.6°F). Note: For swimming, a surface water temperature of 20.9°C (69.6°F) is not enjoyable for the majority. Weather in June »

In July, the average sea temperature in Narashino, Japan, is 23.8°C (74.8°F). Note: For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. Weather in July »

The ideal sea water temperature of 25.3°C (77.5°F) make August the best time for swimming and other water activities in Narashino, Japan. With an average sea temperature of 25.3°C (77.5°F), August is the month with the warmest seawater. 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 »

In Narashino, Japan, the average seawater temperature in September is 24.9°C (76.8°F). Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 24.9°C (76.8°F) water. Weather in September »

In Narashino, Japan, the average seawater temperature in October is 21.8°C (71.2°F). Note: For swimming, a surface water temperature of 21.8°C (71.2°F) is not enjoyable for the majority. Weather in October »

In Narashino, Japan, the average seawater temperature in November is 20°C (68°F). Note: Swimming in 20°C (68°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F). Weather in November »

In December, the average sea temperature in Narashino, Japan, is 17.4°C (63.3°F). Note: For most, swimming in 17.4°C (63.3°F) is not an enjoyable activity. Weather in December »

What is the month with the coldest sea water in Narashino?

The month with the coldest seawater is February, with an average sea temperature of 14.4°C (57.9°F).

When are the longest days in Narashino?

The month with the longest days in Narashino is June, with an average of 14.5h of daylight.

When is the sea warmest in Narashino?

August is the month with the warmest seawater in Narashino, with an average sea temperature of 25.3°C (77.5°F).

What is the month with the shortest days in Narashino?

The month with the shortest days in Narashino is December, with an average of 9.8h of daylight.
Average sea temperature - Narashino, Japan

The best month for swimming (with the highest average sea temperature) is August (25.3°C).
The coldest month (with the lowest average sea temperature) is February (14.4°C).

Average daylight - Narashino, Japan

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).