April Weather in Oi, Japan

Last updated: August 23, 2025

In April, the average temperature in Oi, Japan is 14°C (57°F), with a range that can drop to a chilly 1°C (34°F) and peak at a warm 27°C (81°F). Expect 126 mm (5.0 in) of precipitation over approximately 12 days, resulting in an average humidity of 74%. Prepare for a mix of weather as you explore!

April Temperature in Oi

In April in Oi, the average temperature is 14°C (57°F), with maximums reaching up to 27°C (81°F) and minimums dropping as low as 1°C (34°F). This mild climate makes Oi an appealing destination for travelers looking to enjoy comfortable weather while exploring the area.

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

The chart illustrates April temperature patterns in Oi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oi, April typically has an average temperature of 14°C (57°F), with highs reaching up to 27°C (81°F) and lows dropping to around 1°C (34°F).

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

April Precipitation in Oi

In Oi in April, the precipitation amount is 126 mm (5.0 in) over the course of 12 days.

April Precipitation Trends in Oi

The chart displays monthly precipitation patterns in Oi, 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 Oi, April typically receives around 126 mm (5.0 inches) of precipitation spread over approximately 12 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 Oi

In Oi 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 Oi

This chart illustrates the average monthly humidity levels in Oi, 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 Oi is approximately 74%, 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 Oi

In Oi 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 Oi.

Maximum UV Index Levels in Oi for April

The chart shows the monthly maximum UV Index (UVI) for Oi 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 Oi typically reaches 9, which falls under the very high exposure category.

Data source: Oi 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 Oi Compares to Other Months

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

This table compares monthly weather conditions in Oi, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	47 mm (1.8 inches)	76%	moderate
February Weather	6°C (42°F)	50 mm (2.0 inches)	74%	moderate
March Weather	10°C (50°F)	144 mm (5.7 inches)	70%	very high
April Weather	14°C (57°F)	126 mm (5.0 inches)	74%	very high
May Weather	19°C (67°F)	117 mm (4.6 inches)	81%	extreme
June Weather	22°C (72°F)	168 mm (6.6 inches)	88%	extreme
July Weather	26°C (79°F)	252 mm (9.9 inches)	93%	extreme
August Weather	28°C (82°F)	133 mm (5.3 inches)	90%	extreme
September Weather	23°C (74°F)	201 mm (7.9 inches)	86%	very high
October Weather	18°C (64°F)	291 mm (11.4 inches)	83%	high
November Weather	12°C (55°F)	69 mm (2.7 inches)	80%	moderate
December Weather	7°C (44°F)	55 mm (2.2 inches)	78%	moderate