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June Weather in Sai, Japan

Last updated: August 23, 2025

In June, the average temperature in Sai, Japan hovers around 15°C (59°F), with a range that can drop to a cool 10°C (50°F) and peak at a pleasant 20°C (68°F). Expect about 112 mm (4.4 in) of precipitation spread over 11 days, contributing to an overall humidity level of 91%. 🌧️

June Temperature in Sai

In June in Sai, the average temperature is 15°C (59°F). The maximum can reach 20°C (68°F), while the minimum can be as low as 10°C (50°F). This mild weather makes it an ideal time for outdoor activities and exploration.

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

The chart illustrates June temperature patterns in Sai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sai, June typically has an average temperature of 15°C (59°F), with highs reaching up to 20°C (68°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec343340465259677269614938
Data source: Temperature data for Sai 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 Sai

In Sai in June, the precipitation amount is 112 mm (4.4 in) that occurs over the course of 11 days.

June Precipitation Trends in Sai

The chart displays monthly precipitation patterns in Sai, 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 Sai, June typically receives around 112 mm (4.4 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec1121179398104112110188132156131168
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Sai

In Sai in June humidity is 91%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making it difficult to enjoy outdoor activities and fostering a sense of lethargy that lingers throughout the day.

June Average Humidity in Sai

This chart illustrates the average monthly humidity levels in Sai, 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 Sai is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%77%78%86%91%95%97%89%82%78%77%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Sai

In Sai in June, 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 Sai.

Maximum UV Index Levels in Sai for June

The chart shows the monthly maximum UV Index (UVI) for Sai 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 Sai typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235891010118632
Data source: Sai 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 Sai Compares to Other Months

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

This table compares monthly weather conditions in Sai, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)112 mm (4.4 inches)79%low
February Weather1°C (34°F)117 mm (4.6 inches)78%moderate
March Weather4°C (40°F)93 mm (3.7 inches)77%moderate
April Weather8°C (46°F)98 mm (3.9 inches)78%very high
May Weather11°C (53°F)103 mm (4.1 inches)86%very high
June Weather15°C (59°F)112 mm (4.4 inches)91%very high
July Weather19°C (67°F)110 mm (4.3 inches)95%very high
August Weather22°C (72°F)187 mm (7.4 inches)97%extreme
September Weather21°C (69°F)132 mm (5.2 inches)89%very high
October Weather16°C (61°F)156 mm (6.1 inches)81%high
November Weather9°C (49°F)131 mm (5.1 inches)78%moderate
December Weather3°C (38°F)167 mm (6.6 inches)77%low

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