Monthly weather forecast and climate
Tomakomai, Japan

What is the coldest month in Tomakomai?

The coldest month is January, with an average high-temperature of 0.2°C (32.4°F) and an average low-temperature of -8.3°C (17.1°F).

How many days does it rain in Tomakomai?

In Tomakomai, Japan, during the entire year, the rain falls for 108.5 days and collects up to 1198.1mm (47.2") of precipitation.

When does it snow in Tomakomai?

January through April, November and December are months with snowfall.

How much does it snow in Tomakomai?

In Tomakomai, during the entire year, snow falls for 79.7 days, and aggregates up to 1400mm (55.1") of snow.

When does it snow the most in Tomakomai?

Months with the most snowfall in Tomakomai, Japan, are January and February, with an average 390mm (15.4") of accumulated snow.

What is the driest month in Tomakomai?

The month with the least rainfall is February when the rain falls for 7.1 days and typically collects 33.7mm (1.3") of precipitation.

What month is the sea coldest in Tomakomai?

With an average sea temperature of 2.8°C (37°F), March is the month with the coldest seawater in Tomakomai, Japan. For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

What is the warmest month in Tomakomai?

August is the warmest month, with an average high-temperature of 23.1°C (73.6°F) and an average low-temperature of 18°C (64.4°F).

What is the wettest month in Tomakomai?

August is the month with the most rainfall in Tomakomai, Japan. Rain falls for 11.1 days and accumulates 205mm (8.1") of precipitation.

When is the sea warmest in Tomakomai?

August is the month with the warmest seawater in Tomakomai, with an average sea temperature of 20.8°C (69.4°F). For swimming, a surface water temperature of 20.8°C (69.4°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).
Average temperature - Tomakomai, Japan
Average rainfall - Tomakomai, Japan

The wettest month (with the highest rainfall) is August (205mm).
The driest month (with the lowest rainfall) is February (33.7mm).

Average rainfall days - Tomakomai, Japan

The month with the highest number of rainy days is July (11.2 days).
The month with the lowest number of rainy days is February (7.1 days).

Average snowfall - Tomakomai, Japan

Months with the highest snowfall are January and February (390mm).
Months with the lowest snowfall are May, June, July, August, September and October (0mm).

Average snowfall days - Tomakomai, Japan

Months with the highest number of snowfall days are January and February (24.6 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average sea temperature - Tomakomai, Japan

The best month for swimming (with the highest average sea temperature) is August (20.8°C).
The coldest month (with the lowest average sea temperature) is March (2.8°C).

Average daylight / Average sunshine - Tomakomai, Japan
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