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April Weather in Ichihara, Japan

Last updated: August 23, 2025

In April, the average temperature in Ichihara, Japan is a pleasant 14°C (57°F). You can expect temperatures to range from a cool 4°C (40°F) to a warm 24°C (76°F). While you're enjoying the mild weather, be prepared for some rain, as the area receives about 137 mm (5.4 in) of precipitation over approximately 11 days. With an average humidity of 74%, it's the perfect time to experience this vibrant destination!

April Temperature in Ichihara

In April in Ichihara, the average temperature is 14°C (57°F), with maximums reaching 24°C (76°F) and minimums dropping to 4°C (40°F). This pleasant weather makes it an ideal time for travelers to explore the sights and enjoy outdoor activities.

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

The chart illustrates April temperature patterns in Ichihara, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ichihara, April typically has an average temperature of 14°C (57°F), with highs reaching up to 24°C (76°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec434450576671778175665748
Data source: Temperature data for Ichihara 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 Ichihara

In Ichihara in April, the total precipitation amount reaches 137 mm (5.4 in) over a span of 11 days.

April Precipitation Trends in Ichihara

The chart displays monthly precipitation patterns in Ichihara, 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 Ichihara, April typically receives around 137 mm (5.4 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec635116213714719022611823231311980
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Ichihara

In Ichihara in April, humidity is 74%. With an average temperature of 14°C (57°F), this humidity feels like a warm, damp blanket wrapping around you, making it slightly uncomfortable for traveling, as you may find yourself quickly sweating and in need of frequent breaks to cool down.

April Average Humidity in Ichihara

This chart illustrates the average monthly humidity levels in Ichihara, 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 Ichihara is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%74%70%74%82%88%93%90%86%83%80%78%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Ichihara

In Ichihara in April, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Ichihara.

Maximum UV Index Levels in Ichihara for April

The chart shows the monthly maximum UV Index (UVI) for Ichihara 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 Ichihara typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111119753
Data source: Ichihara 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 Ichihara Compares to Other Months

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

This table compares monthly weather conditions in Ichihara, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)63 mm (2.5 inches)76%moderate
February Weather7°C (44°F)50 mm (2.0 inches)74%moderate
March Weather10°C (50°F)162 mm (6.4 inches)70%high
April Weather14°C (57°F)137 mm (5.4 inches)74%very high
May Weather19°C (66°F)147 mm (5.8 inches)81%very high
June Weather22°C (71°F)190 mm (7.5 inches)88%extreme
July Weather25°C (78°F)226 mm (8.9 inches)93%extreme
August Weather27°C (81°F)118 mm (4.7 inches)90%extreme
September Weather24°C (75°F)232 mm (9.1 inches)86%very high
October Weather19°C (66°F)313 mm (12.3 inches)83%high
November Weather14°C (58°F)119 mm (4.7 inches)80%moderate
December Weather9°C (48°F)80 mm (3.2 inches)78%moderate

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