July Weather in Yanai, Japan

Last updated: August 23, 2025

In Yanai, Japan, the average temperature in July hovers around 26°C (79°F), with a comfortable range from a minimum of 20°C (68°F) to a maximum of 33°C (91°F). Be prepared for considerable rainfall, as 355 mm (14.0 in) of precipitation can occur over 17 days throughout the month, accompanied by high humidity levels averaging 92%.

July Temperature in Yanai

In July in Yanai, the average temperature is 26°C (79°F). Maximum temperatures can reach 33°C (91°F), while minimums may drop to as low as 20°C (68°F). This pleasant and warm climate makes Yanai an ideal destination for travelers seeking comfortable weather.

July Weather in Yanai: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Yanai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yanai, July typically has an average temperature of 26°C (79°F), with highs reaching up to 33°C (91°F) and lows dropping to around 20°C (68°F).
JanFebMarAprMayJunJulAugSepOctNovDec454551576571798276685849
Data source: Temperature data for Yanai 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.

July Precipitation in Yanai

In Yanai in July, the total precipitation amount is 355 mm (14.0 in), which falls over a span of 17 days.

July Precipitation Trends in Yanai

The chart displays monthly precipitation patterns in Yanai, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Yanai, July typically receives around 355 mm (14.0 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec54791271461591893562212151744364
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Yanai

In Yanai in July humidity is 92%. With an average temperature of 26°C (79°F), this humidity feels like an oppressive blanket wrapping around you, making outdoor activities a challenge and leaving you longing for shade and cool beverages.

July Average Humidity in Yanai

This chart illustrates the average monthly humidity levels in Yanai, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Yanai is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%71%71%78%84%86%92%91%84%83%81%79%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Yanai

In Yanai in July, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Yanai.

Maximum UV Index Levels in Yanai for July

The chart shows the monthly maximum UV Index (UVI) for Yanai in July, 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 July, the maximum UV index in Yanai typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458111111121210764
Data source: Yanai July 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 July Weather in Yanai Compares to Other Months

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

This table compares monthly weather conditions in Yanai, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)54 mm (2.1 inches)75%moderate
February Weather7°C (45°F)79 mm (3.1 inches)71%moderate
March Weather11°C (51°F)127 mm (5.0 inches)71%very high
April Weather14°C (58°F)146 mm (5.7 inches)78%extreme
May Weather18°C (65°F)159 mm (6.3 inches)84%extreme
June Weather22°C (72°F)189 mm (7.5 inches)86%extreme
July Weather26°C (79°F)355 mm (14.0 inches)92%extreme
August Weather28°C (82°F)221 mm (8.7 inches)91%extreme
September Weather24°C (76°F)215 mm (8.5 inches)84%very high
October Weather20°C (68°F)173 mm (6.8 inches)83%high
November Weather15°C (59°F)43 mm (1.7 inches)81%high
December Weather9°C (49°F)64 mm (2.5 inches)79%moderate

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