Japan Osaka Weather in June — Climate Guide
June in Osaka is Average
June is Average for Osaka.
June is the start of Osaka's rainy season (tsuyu, 梅雨). Don't expect non-stop rain — most days have 1-2 hours of heavy showers, often in the afternoon, with humid clouds the rest of the day. Folding umbrella becomes essential.
Despite the rain, June has real upsides. Crowds drop noticeably after May. Hotels return to normal pricing. The hydrangea (ajisai) flowers bloom across temple gardens — Yatsuhashi Temple in Osaka and Mimuroto-ji in nearby Uji are spectacular. Mt. Rokko's hydrangea park is also at peak in June.
Travel score
Osaka June Weather Stats
Avg High
27.8°C
Avg Low
19.9°C
Rainy Days
12
187mm total
Sunshine
4.7h
Daily avg
Humidity
72%
Humid
UV Index
9
Very high
Wind
9 km/h
Gusts 19
Sea Temp
22°C
Avg water temp
Crowds
Moderate
At attractions
June Sunrise & Sunset
Air Quality
PM2.5
19 μg/m³
PM10
27 μg/m³
Status
Moderate
Feels-Like Temperature & Wind
Feels like
Daytime
30°C
Nighttime
20°C
Humidity and wind affect how the actual temperature feels.
Wind
9 km/h
Max gust 19 km/h
Activities Recommended for June
June Travel Pros & Cons
Pros
- Crowds drop significantly after Golden Week and pre-summer rush
- Hotel prices return to normal — good value
- Hydrangea (ajisai) season at temple gardens
Cons
- Rainy season starts — daily afternoon showers common
- Humidity 70-75% — cotton clothing gets uncomfortable
- Limited outdoor activity windows
June Events & Festivals
- Tsuyu (rainy season) begins mid-June
- Sumiyoshi Otaue Rice Planting Festival (June 14)
- Father's Day department store sales (third Sunday)
Osaka in June — Full Picture
June is the start of Osaka's rainy season (tsuyu, 梅雨). Don't expect non-stop rain — most days have 1-2 hours of heavy showers, often in the afternoon, with humid clouds the rest of the day. Folding umbrella becomes essential.
Despite the rain, June has real upsides. Crowds drop noticeably after May. Hotels return to normal pricing. The hydrangea (ajisai) flowers bloom across temple gardens — Yatsuhashi Temple in Osaka and Mimuroto-ji in nearby Uji are spectacular. Mt. Rokko's hydrangea park is also at peak in June.
The rainy season makes indoor attractions ideal: USJ on cloudy days has shorter waits, Kuromon Market is covered, and Umeda's underground shopping connects you to most of central Osaka without needing umbrellas. Universal CityWalk dining post-USJ is a great rainy-day wind-down.
Temperatures are still moderate (22-28°C / 72-82°F daytime) but humidity climbs to 70-75%, making it feel hotter than the actual numbers. Quick-dry clothing recommended; cotton becomes uncomfortable quickly.
What to Wear & What to Pack
Short sleeves and lightweight pants. Folding umbrella mandatory — rainy season starts. Quick-dry fabrics recommended; humidity makes cotton uncomfortable.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
19.4°C
10.7°C
9/mo
Summer (Jun·Jul·Aug)
Current30.9°C
23.1°C
10/mo
Autumn (Sep·Oct·Nov)
23.6°C
15.9°C
7.7/mo
Winter (Dec·Jan·Feb)
10.7°C
3.6°C
5.3/mo
Osaka Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 9.5° | 2.8° | 5d·47mm | 5.5h | 60% | 2 | Quiet | Low season | |
| 10.4° | 2.9° | 6d·60mm | 6.1h | 60% | 3 | Quiet | Low season | |
| March (Best) | 13.7° | 5.7° | 9d·104mm | 6.4h | 62% | 4 | Busy | Peak |
| April (Best) | 19.9° | 10.7° | 9d·103mm | 6.5h | 64% | 6 | Very busy | Peak |
| May (Best) | 24.5° | 15.6° | 9d·134mm | 6.7h | 67% | 8 | Busy | Peak |
| 27.8° | 19.9° | 12d·187mm | 4.7h | 72% | 9 | Moderate | Shoulder | |
| 31.6° | 24° | 11d·174mm | 5.5h | 73% | 10 | Moderate | Shoulder | |
| 33.4° | 25.3° | 7d·113mm | 6.3h | 70% | 10 | Busy | Peak | |
| 29.5° | 22° | 9d·153mm | 6.2h | 71% | 7 | Moderate | Shoulder | |
| October (Best) | 23.7° | 16° | 8d·130mm | 5.9h | 67% | 5 | Busy | Peak |
| November (Best) | 17.6° | 9.7° | 6d·73mm | 5.8h | 64% | 3 | Busy | Peak |
| 12.3° | 5° | 5d·49mm | 5.7h | 60% | 2 | Busy | Peak |
View Other Months
Osaka June Hotel Picks
Frequently Asked Questions
Is June a good time to visit Osaka?
Osaka in June is Average. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Osaka in June?
Osaka June averages a high of 27.8°C and a low of 19.9°C.
Does it rain much in Osaka in June?
Osaka June averages 187mm of rainfall over about 12 rainy days.
What should I wear in Osaka in June?
Short sleeves and lightweight pants. Folding umbrella mandatory — rainy season starts. Quick-dry fabrics recommended; humidity makes cotton uncomfortable.
What time are sunrise and sunset in Osaka in June?
Osaka June sunrise is 04:46 and sunset is 19:14, with 14h 28m of daylight.
What's the air quality like in Osaka in June?
Osaka June air quality (AQI) averages 45, rated Good. PM2.5 averages 19μg/m³.
What activities are recommended in Osaka in June?
In June, Osaka is great for USJ on cloudy days, Hydrangea viewing, Indoor shopping (Umeda).
Is June peak season in Osaka?
Osaka June crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Osaka
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.