April Weather in Saikai, Japan

Last updated: August 23, 2025

In April, the average temperature in Saikai, Japan hovers around 15°C (60°F). Expect a refreshing range, with minimums dipping to 8°C (46°F) and maximums reaching up to 22°C (72°F). Prepare for some wet days, as 130 mm (5.1 in) of precipitation falls over approximately 8 days, all while humidity levels remain high at an average of 79%.

April Temperature in Saikai

In April in Saikai, the average temperature is 15°C (60°F). Maximums can reach 22°C (72°F), and minimums can drop to 8°C (46°F). This mild climate makes it an ideal time for exploring outdoor activities and enjoying the local attractions comfortably.

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

The chart illustrates April temperature patterns in Saikai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saikai, April typically has an average temperature of 15°C (60°F), with highs reaching up to 22°C (72°F) and lows dropping to around 8°C (46°F).

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

April Precipitation in Saikai

In Saikai in April, the total precipitation amount is 130 mm (5.1 in) over a span of 8 days.

April Precipitation Trends in Saikai

The chart displays monthly precipitation patterns in Saikai, 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 Saikai, April typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 8 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 Saikai

In Saikai in April, humidity is 79%. With an average temperature of 15°C (60°F), this humidity feels like a warm, enveloping blanket that can make traveling feel muggy and a bit stifling, requiring frequent breaks to stay refreshed and hydrated.

April Average Humidity in Saikai

This chart illustrates the average monthly humidity levels in Saikai, 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 Saikai is approximately 79%, 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 Saikai

In Saikai 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 Saikai.

Maximum UV Index Levels in Saikai for April

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

Data source: Saikai 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 Saikai Compares to Other Months

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

This table compares monthly weather conditions in Saikai, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	58 mm (2.3 inches)	73%	moderate
February Weather	9°C (48°F)	93 mm (3.6 inches)	69%	high
March Weather	12°C (54°F)	147 mm (5.8 inches)	71%	very high
April Weather	15°C (60°F)	130 mm (5.1 inches)	79%	very high
May Weather	19°C (67°F)	206 mm (8.1 inches)	87%	extreme
June Weather	23°C (73°F)	231 mm (9.1 inches)	91%	extreme
July Weather	26°C (79°F)	393 mm (15.5 inches)	97%	extreme
August Weather	28°C (82°F)	320 mm (12.6 inches)	94%	extreme
September Weather	25°C (77°F)	223 mm (8.8 inches)	84%	extreme
October Weather	21°C (69°F)	110 mm (4.3 inches)	79%	high
November Weather	16°C (60°F)	65 mm (2.6 inches)	75%	high
December Weather	10°C (51°F)	81 mm (3.2 inches)	72%	moderate