August Weather in Tomakomai, Japan

Last updated: August 23, 2025

In August, the average temperature in Tomakomai, Japan hovers around 20°C (69°F), offering a pleasant climate. Expect temperatures to dip to a minimum of 13°C (55°F) and reach a comfortable 28°C (83°F) at their peak. However, be prepared for some rain, as 206 mm (8.1 in) of precipitation is typical over 15 days, with an average humidity level of a steamy 95%.

August Temperature in Tomakomai

In August in Tomakomai, the average temperature is 20°C (69°F). The maximum can reach 28°C (83°F), and the minimum can be as low as 13°C (55°F). This pleasant climate makes Tomakomai an ideal destination for travelers looking to enjoy mild weather while exploring the sights.

August Weather in Tomakomai: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Tomakomai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tomakomai, August typically has an average temperature of 20°C (69°F), with highs reaching up to 28°C (83°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec252534415158666864544230
Data source: Temperature data for Tomakomai generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Tomakomai

In Tomakomai in August, the total precipitation amount is 206 mm (8.1 in) over the course of 15 days.

August Precipitation Trends in Tomakomai

The chart displays monthly precipitation patterns in Tomakomai, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Tomakomai, August typically receives around 206 mm (8.1 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec495489939012812120614514310262
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Tomakomai

In Tomakomai in August, humidity is 95%. With an average temperature of 20°C (69°F), this humidity feels like a warm blanket wrapping around you, making travel feel heavy and stifling, as every step seems to pull you down in the thick, moist air.

August Average Humidity in Tomakomai

This chart illustrates the average monthly humidity levels in Tomakomai, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Tomakomai is approximately 95%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%83%81%81%86%87%93%95%88%83%79%80%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Tomakomai

In Tomakomai in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Tomakomai.

Maximum UV Index Levels in Tomakomai for August

The chart shows the monthly maximum UV Index (UVI) for Tomakomai in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Tomakomai typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec23578109108532
Data source: Tomakomai August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How August Weather in Tomakomai Compares to Other Months

Weather in Tomakomai varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Tomakomai, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Tomakomai, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)49 mm (1.9 inches)84%low
February Weather-4°C (26°F)53 mm (2.1 inches)83%moderate
March Weather1°C (34°F)89 mm (3.5 inches)81%moderate
April Weather5°C (42°F)93 mm (3.7 inches)81%high
May Weather11°C (51°F)90 mm (3.6 inches)86%very high
June Weather14°C (58°F)128 mm (5.1 inches)87%very high
July Weather19°C (66°F)121 mm (4.7 inches)93%very high
August Weather20°C (69°F)206 mm (8.1 inches)95%very high
September Weather18°C (64°F)145 mm (5.7 inches)88%very high
October Weather12°C (54°F)143 mm (5.6 inches)83%moderate
November Weather6°C (42°F)102 mm (4.0 inches)79%moderate
December Weather-1°C (30°F)62 mm (2.4 inches)80%low

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