April Weather in Oma, Japan

Last updated: August 23, 2025

In Oma, Japan, the average temperature in April hovers around 7°C (46°F). Expect a minimum of 1°C (35°F) and a comfortable maximum of 14°C (57°F). During this period, you'll likely encounter 97 mm (3.8 in) of precipitation spread over 14 days, with an average humidity of 78%. Prepare for a mix of cool weather and damp days!

April Temperature in Oma

In April in Oma, the average temperature is 7°C (46°F). The maximum can reach 14°C (57°F), while the minimum can dip as low as 1°C (35°F). Be sure to pack layers to stay comfortable during your travels!

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

The chart illustrates April temperature patterns in Oma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oma, April typically has an average temperature of 7°C (46°F), with highs reaching up to 14°C (57°F) and lows dropping to around 1°C (35°F).

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

April Precipitation in Oma

In Oma in April, the total precipitation amount is 97 mm (3.8 in) spread over 14 days.

April Precipitation Trends in Oma

The chart displays monthly precipitation patterns in Oma, 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 Oma, April typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 14 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in Oma

In Oma in April, humidity is 78%. With an average temperature of 7°C (46°F), this humidity feels like a damp chill that seeps into your bones, making it necessary to bundle up when venturing outside.

April Average Humidity in Oma

This chart illustrates the average monthly humidity levels in Oma, 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 Oma 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 Oma

In Oma in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Oma.

Maximum UV Index Levels in Oma for April

The chart shows the monthly maximum UV Index (UVI) for Oma 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 Oma typically reaches 8, which falls under the very high exposure category.

Data source: Oma 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 Oma Compares to Other Months

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

This table compares monthly weather conditions in Oma, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (34°F)	117 mm (4.6 inches)	79%	low
February Weather	1°C (34°F)	115 mm (4.5 inches)	78%	moderate
March Weather	4°C (40°F)	94 mm (3.7 inches)	77%	moderate
April Weather	7°C (46°F)	97 mm (3.8 inches)	78%	very high
May Weather	11°C (52°F)	95 mm (3.8 inches)	86%	very high
June Weather	14°C (58°F)	107 mm (4.2 inches)	91%	very high
July Weather	19°C (66°F)	100 mm (3.9 inches)	95%	very high
August Weather	21°C (71°F)	171 mm (6.7 inches)	97%	extreme
September Weather	20°C (69°F)	116 mm (4.6 inches)	89%	very high
October Weather	16°C (61°F)	159 mm (6.3 inches)	81%	high
November Weather	9°C (49°F)	133 mm (5.2 inches)	78%	moderate
December Weather	3°C (38°F)	167 mm (6.6 inches)	77%	low