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June Weather in Ishii, Japan

Last updated: August 23, 2025

In June, the average temperature in Ishii, Japan hovers around 21°C (71°F). Expect a delightful range, with minimums dipping to 14°C (58°F) and maximums reaching 29°C (85°F). However, be prepared for a touch of wetness, as precipitation totals 234 mm (9.2 in) over about 14 days. The air tends to be quite humid, with an average humidity level of 86%, making it essential to stay hydrated and comfortable!

June Temperature in Ishii

In June, in Ishii, the average temperature is 21°C (71°F). Maximums can reach 29°C (85°F) and minimums can drop as low as 14°C (58°F). This pleasant climate makes Ishii an ideal destination for travelers seeking comfortable weather and outdoor activities.

June Weather in Ishii: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Ishii, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ishii, June typically has an average temperature of 21°C (71°F), with highs reaching up to 29°C (85°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec434450576571788175665747
Data source: Temperature data for Ishii 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.

June Precipitation in Ishii

In Ishii in June, the total precipitation amount is 234 mm (9.2 in), which is recorded over a span of 14 days.

June Precipitation Trends in Ishii

The chart displays monthly precipitation patterns in Ishii, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Ishii, June typically receives around 234 mm (9.2 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec60711371451842343782262943606564
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Ishii

In Ishii in June, humidity is 86%. With an average temperature of 21°C (71°F), this humidity feels like a warm, dense blanket wrapping around you, making outdoor activities feel slightly stifling and requiring frequent breaks for hydration.

June Average Humidity in Ishii

This chart illustrates the average monthly humidity levels in Ishii, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Ishii is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%70%70%76%83%86%91%88%85%82%79%77%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Ishii

In Ishii in June, 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 Ishii.

Maximum UV Index Levels in Ishii for June

The chart shows the monthly maximum UV Index (UVI) for Ishii in June, 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 June, the maximum UV index in Ishii typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468111112121210764
Data source: Ishii June 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 June Weather in Ishii Compares to Other Months

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

This table compares monthly weather conditions in Ishii, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)60 mm (2.4 inches)74%moderate
February Weather7°C (44°F)71 mm (2.8 inches)70%high
March Weather10°C (51°F)137 mm (5.4 inches)70%very high
April Weather14°C (57°F)145 mm (5.7 inches)76%extreme
May Weather18°C (65°F)184 mm (7.3 inches)82%extreme
June Weather21°C (71°F)234 mm (9.2 inches)86%extreme
July Weather26°C (78°F)378 mm (14.9 inches)91%extreme
August Weather27°C (81°F)226 mm (8.9 inches)88%extreme
September Weather24°C (75°F)294 mm (11.6 inches)85%very high
October Weather19°C (67°F)360 mm (14.2 inches)82%high
November Weather14°C (57°F)65 mm (2.5 inches)79%high
December Weather9°C (48°F)64 mm (2.5 inches)77%moderate

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