Last updated: August 23, 2025
In April, the average temperature in Onagawa Cho, Japan is a cool 9°C (49°F). During this month, temperatures can dip to a chilly 2°C (36°F) at their lowest, while reaching a pleasant 17°C (63°F) at their warmest. Be prepared for 114 mm (4.5 in) of precipitation spread over approximately 10 days, and expect a relatively high humidity level of 75%.
In April in Onagawa Cho, the average temperature is 9°C (49°F). The maximum can reach 17°C (63°F), while the minimum can be as low as 2°C (36°F). This mild weather makes Onagawa Cho an ideal destination for travelers seeking a comfortable climate.
In Onagawa Cho in April, the precipitation amount is 114 mm (4.5 in) over a period of 10 days.
In Onagawa Cho in April, humidity is 75%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that wraps around you, making outdoor activities uncomfortable and causing your clothes to cling uncomfortably. It's advisable to dress in layers to stay warm, while also being prepared for the persistent moisture in the air that can leave you feeling a bit sluggish throughout your travels.
In Onagawa Cho 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 Onagawa Cho.
UV Risk Categories
Weather in Onagawa Cho varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Onagawa Cho, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (39°F) | 47 mm (1.8 inches) | 80% | moderate |
| February Weather | 4°C (39°F) | 42 mm (1.6 inches) | 79% | moderate |
| March Weather | 6°C (44°F) | 107 mm (4.2 inches) | 77% | high |
| April Weather | 9°C (49°F) | 114 mm (4.5 inches) | 75% | very high |
| May Weather | 14°C (57°F) | 110 mm (4.3 inches) | 80% | very high |
| June Weather | 17°C (63°F) | 96 mm (3.8 inches) | 87% | very high |
| July Weather | 21°C (71°F) | 173 mm (6.8 inches) | 92% | very high |
| August Weather | 24°C (75°F) | 167 mm (6.6 inches) | 92% | extreme |
| September Weather | 22°C (71°F) | 141 mm (5.5 inches) | 86% | very high |
| October Weather | 17°C (63°F) | 214 mm (8.4 inches) | 82% | high |
| November Weather | 12°C (53°F) | 44 mm (1.7 inches) | 79% | moderate |
| December Weather | 6°C (43°F) | 63 mm (2.5 inches) | 80% | moderate |