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April Weather in Iheya, Japan

Last updated: August 23, 2025

In April, the average temperature in Iheya, Japan is a pleasant 21°C (70°F), making it an inviting destination. Expect temperatures to range from a minimum of 15°C (59°F) to a comfortable maximum of 25°C (78°F). However, be prepared for some rain, as 135 mm (5.3 in) of precipitation is expected over approximately 12 days. Additionally, the average humidity hovers around a tropical 82%, adding to the region's warm atmosphere.

April Temperature in Iheya

In April in Iheya, the average temperature is 21°C (70°F). The maximum can reach 25°C (78°F) and the minimum can be as low as 15°C (59°F). This pleasant climate makes it an ideal time for travel and exploration in Iheya.

April Weather in Iheya: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Iheya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iheya, April typically has an average temperature of 21°C (70°F), with highs reaching up to 25°C (78°F) and lows dropping to around 15°C (59°F).
JanFebMarAprMayJunJulAugSepOctNovDec646467707479828382787367
Data source: Temperature data for Iheya 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.

April Precipitation in Iheya

In Iheya in April, the precipitation amount is 135 mm (5.3 in), occurring over the course of 12 days.

April Precipitation Trends in Iheya

The chart displays monthly precipitation patterns in Iheya, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Iheya, April typically receives around 135 mm (5.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec103108132135215392173161204135107141
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Iheya

In Iheya in April, humidity is 82%. With an average temperature of 21°C (70°F), this humidity feels like a warm, sticky embrace that can quickly lead to discomfort for travelers, making outdoor activities less enjoyable and requiring frequent breaks for hydration.

April Average Humidity in Iheya

This chart illustrates the average monthly humidity levels in Iheya, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Iheya is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%71%76%82%84%86%86%82%82%81%79%75%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Iheya

In Iheya in April, 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 Iheya.

Maximum UV Index Levels in Iheya for April

The chart shows the monthly maximum UV Index (UVI) for Iheya in April, 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 April, the maximum UV index in Iheya typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec7811121313131312986
Data source: Iheya April 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 April Weather in Iheya Compares to Other Months

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

This table compares monthly weather conditions in Iheya, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (64°F)103 mm (4.1 inches)71%high
February Weather18°C (64°F)108 mm (4.3 inches)71%very high
March Weather19°C (67°F)132 mm (5.2 inches)76%extreme
April Weather21°C (70°F)135 mm (5.3 inches)82%extreme
May Weather24°C (75°F)214 mm (8.4 inches)84%extreme
June Weather26°C (79°F)392 mm (15.4 inches)86%extreme
July Weather28°C (83°F)173 mm (6.8 inches)86%extreme
August Weather28°C (83°F)161 mm (6.3 inches)82%extreme
September Weather28°C (82°F)204 mm (8.0 inches)82%extreme
October Weather26°C (78°F)135 mm (5.3 inches)80%very high
November Weather23°C (73°F)107 mm (4.2 inches)79%very high
December Weather20°C (67°F)141 mm (5.5 inches)75%high

Compare Iheya's Climate with Cities Worldwide