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August Weather in Hiroo, Japan

Last updated: August 23, 2025

In August, the average temperature in Hiroo, Japan hovers around 19°C (67°F), with a refreshing minimum of 11°C (52°F) and a comfortable maximum of 30°C (86°F). However, prepare for some raindrops, as the region sees about 175 mm (6.9 in) of precipitation over 12 days. With an average humidity level of 96%, it's a beautifully lush time to enjoy this vibrant destination!

August Temperature in Hiroo

In August in Hiroo, the average temperature is 19°C (67°F). Maximums can reach 30°C (86°F), and minimums can drop as low as 11°C (52°F). This mild climate makes Hiroo an ideal destination for travelers seeking a pleasant getaway.

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

The chart illustrates August temperature patterns in Hiroo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hiroo, August typically has an average temperature of 19°C (67°F), with highs reaching up to 30°C (86°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec242433425257656763534330
Data source: Temperature data for Hiroo 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 Hiroo

In Hiroo in August, the precipitation amount is 175 mm (6.9 in) accumulated over the course of 12 days.

August Precipitation Trends in Hiroo

The chart displays monthly precipitation patterns in Hiroo, 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 Hiroo, August typically receives around 175 mm (6.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec616511597951051061751402019066
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Hiroo

In Hiroo in August, humidity is 96%. With an average temperature of 19°C (67°F), this humidity feels like a heavy blanket enveloping you, making travel feel stifling and uncomfortable as you navigate through the thick, moist air.

August Average Humidity in Hiroo

This chart illustrates the average monthly humidity levels in Hiroo, 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 Hiroo is approximately 96%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%83%86%88%93%96%89%83%80%79%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Hiroo

In Hiroo 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 Hiroo.

Maximum UV Index Levels in Hiroo for August

The chart shows the monthly maximum UV Index (UVI) for Hiroo 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 Hiroo typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec236891010108632
Data source: Hiroo 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 Hiroo Compares to Other Months

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

This table compares monthly weather conditions in Hiroo, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)61 mm (2.4 inches)84%low
February Weather-4°C (25°F)65 mm (2.6 inches)83%moderate
March Weather1°C (34°F)115 mm (4.5 inches)83%high
April Weather5°C (42°F)97 mm (3.8 inches)83%very high
May Weather11°C (52°F)95 mm (3.7 inches)86%very high
June Weather14°C (58°F)105 mm (4.1 inches)88%very high
July Weather18°C (65°F)106 mm (4.2 inches)93%very high
August Weather19°C (67°F)175 mm (6.9 inches)96%very high
September Weather17°C (63°F)140 mm (5.5 inches)89%very high
October Weather12°C (54°F)201 mm (7.9 inches)83%high
November Weather6°C (43°F)90 mm (3.6 inches)80%moderate
December Weather-1°C (30°F)66 mm (2.6 inches)79%low

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