Osaka Weather in April
Japan · Humid Subtropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
April in Osaka sees average temperatures ranging from a low of 9.7°C (49.5°F) to a high of 19.0°C (66.2°F), with a mean of 14.3°C (57.7°F). Compared to the annual average of 16.5°C (61.7°F), this month is 2.2°C cooler than the yearly norm. Precipitation averages 165.6mm, making it approximately 13.0mm wetter than the monthly average of 153.0mm. The city receives an average of 8.6 hours of sunshine per day during April, with relative humidity averaging 72.3%. Wind speeds reach an average maximum of 25.1 km/h. For travelers, this month offers a temperature experience in Osaka, with wetter-than-average conditions compared to the rest of the year.
Osaka's climate is similar to Tokyo but with a more pronounced urban heat effect. I visited during the humid summer and found the city's famous street food culture actually thrives in the heat — the covered arcades of Dotonbori provide perfect shelter from the sun. The data shows Osaka gets slightly warmer than Tokyo in summer, making air conditioning essential. Spring and autumn are the ideal windows for exploring the city's many temples and castles.
April vs Adjacent Months
| Metric | March | April | May |
|---|---|---|---|
| Mean Temp | 9.8°C (49.6°F) | 14.3°C (57.7°F) | 18.5°C (65.3°F) |
| Rainfall | 126.6mm | 165.6mm | 218.2mm |
| Sunshine | 8.2 hrs | 8.6 hrs | 9.0 hrs |
| Humidity | 73.2% | 72.3% | 74.5% |
| Wind | 23.5 km/h | 25.1 km/h | 23.7 km/h |
| Rainy Days | 15.2 | 13.2 | 15.4 |
| Snowfall | 0.1 cm | 0.0 cm | 0.0 cm |
Seasonal Context
April falls in Spring in the Northern Hemisphere. Spring is a transitional season with temperatures rising from winter lows. For travelers visiting Osaka in April, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Osaka in April?
The average temperature in Osaka during April ranges from 9.7°C (49.5°F) to 19.0°C (66.2°F), with a mean of 14.3°C (57.7°F).
How much does it rain in Osaka in April?
Osaka receives an average of 165.6mm of precipitation in April, spread across approximately 13.2 rainy days.
What should I pack for Osaka in April?
Based on April weather data, pack warm layers, a medium jacket, and waterproof outerwear. Rain gear is essential — this month averages 165.6mm of precipitation.
Is April a good time to visit Osaka?
April is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Osaka
Cities with Similar April Climate (Humid Subtropical)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 34.69°, 135.5°. Timezone: Asia/Tokyo. Last updated: 2026-07-30.