April Weather in Omi, Japan

Last updated: August 23, 2025

In April, the average temperature in Omi, Japan hovers around 8°C (47°F), with potential extremes that range from a chilly -8°C (18°F) to a warm 27°C (80°F). Expect around 182 mm (7.2 in) of precipitation over approximately 17 days, contributing to an average humidity of 78%. Whether you're seeking cozy indoor escapes or invigorating outdoor adventures, be prepared for the diverse weather this month brings!

April Temperature in Omi

In April in Omi, the average temperature is 8°C (47°F). Maximum temperatures can reach 27°C (80°F), while minimums can drop as low as -8°C (18°F). Travelers should be prepared for a wide range of temperatures, making it essential to pack clothing for both warm and cold conditions.

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

The chart illustrates April temperature patterns in Omi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Omi, April typically has an average temperature of 8°C (47°F), with highs reaching up to 27°C (80°F) and lows dropping to around -8°C (18°F).

Data source: Temperature data for Omi generated using information from the Copernicus Climate Change Service.

April Precipitation in Omi

In Omi in April, the total precipitation amount is 182 mm (7.2 in) over the course of 17 days.

April Precipitation Trends in Omi

The chart displays monthly precipitation patterns in Omi, 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 Omi, April typically receives around 182 mm (7.2 inches) of precipitation spread over approximately 17 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

April Humidity in Omi

In Omi in April, humidity is 78%. With an average temperature of 8°C (47°F), this humidity feels like a chilly embrace, making travel invigorating yet damp, as the cool air wraps around you, emphasizing the need for layers to stay comfortable while exploring.

April Average Humidity in Omi

This chart illustrates the average monthly humidity levels in Omi, 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 Omi is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Omi

In Omi in April, 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 Omi.

Maximum UV Index Levels in Omi for April

The chart shows the monthly maximum UV Index (UVI) for Omi 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 Omi typically reaches 10, which falls under the very high exposure category.

Data source: Omi 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 Omi Compares to Other Months

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

This table compares monthly weather conditions in Omi, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	151 mm (6.0 inches)	88%	moderate
February Weather	-2°C (29°F)	138 mm (5.4 inches)	86%	high
March Weather	3°C (38°F)	172 mm (6.8 inches)	81%	very high
April Weather	8°C (47°F)	182 mm (7.2 inches)	78%	very high
May Weather	14°C (58°F)	227 mm (8.9 inches)	81%	extreme
June Weather	18°C (64°F)	256 mm (10.1 inches)	88%	extreme
July Weather	22°C (72°F)	437 mm (17.2 inches)	92%	extreme
August Weather	23°C (74°F)	276 mm (10.9 inches)	92%	extreme
September Weather	19°C (66°F)	285 mm (11.2 inches)	89%	very high
October Weather	13°C (55°F)	277 mm (10.9 inches)	87%	high
November Weather	6°C (44°F)	119 mm (4.7 inches)	85%	moderate
December Weather	0°C (33°F)	163 mm (6.4 inches)	86%	moderate