Java · AutumnMonth summary
Java weather in September
✅ Good
🌡️ Temperature min / max
72°F – 88°F
🌧 Rainy days
54% of days
☀️ Sunshine
11.0h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.3/10
📅 📅 Best month
July (8.0/10)
Quick decision
Should you visit Java in September?
✅ Good
✅ Yes if: you're willing to accept showers in exchange for lower prices and fewer tourists.
❌ No if: you're planning 100% outdoor activities — rain is frequent.
Our take: Java in September: 88°F and 11.0h of sunshine. Decent, but not the peak.
By trip type
Java in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ⚠️ Possible
- 🏖️ Beach / swimming : ⚠️ Possible
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in September
Autumn in Java is often underrated: 31°F, golden light and declining crowds. An interesting window. With 54% of rainy days, always have indoor alternatives planned. Not the best window, but acceptable if dates are constrained. July (8.0/10) is significantly better if possible.
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All months for Java
Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌧️ January | 73°F | 86°F | 92% | 0.4in | 7.9h | 5.8/10 |
| 🌧️ February | 73°F | 86°F | 95% | 0.5in | 7.9h | 5.4/10 |
| 🌧️ March | 73°F | 86°F | 92% | 0.4in | 8.6h | 6.1/10 |
| 🌦️ April | 73°F | 86°F | 88% | 0.3in | 10.0h | 7.0/10 |
| ⛅ May | 73°F | 88°F | 63% | 0.2in | 10.9h | 7.1/10 |
| 🌤️ June | 72°F | 88°F | 54% | 0.2in | 11.0h | 7.2/10 |
| 🌤️ July | 72°F | 86°F | 33% | 0.1in | 11.0h | 8.0/10 |
| 🌤️ August | 70°F | 88°F | 35% | 0.1in | 11.1h | 7.7/10 |
| 🌤️ September | 72°F | 88°F | 54% | 0.1in | 11.0h | 7.3/10 |
| ⛅ October | 73°F | 88°F | 76% | 0.3in | 10.4h | 7.0/10 |
| 🌧️ November | 73°F | 86°F | 92% | 0.5in | 8.1h | 5.6/10 |
| 🌧️ December | 73°F | 86°F | 89% | 0.4in | 8.1h | 6.2/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, Java averages 88°F, 54% rainy days and 11.0h of sunshine per day. Overall weather score: 7.3/10.
See methodology →
Comparison
September vs July (best month)
The best month is July (score 8.0/10). Difference:
- 🌡️ Max temperature : -1°F
- 🌧 Rainy days : -21%
- ☀️ Sunshine : +0.0h/day
FAQ
FAQ — Java in September
Is September a good time to visit Java?
September is an acceptable time for Java (score 7.3/10). Conditions are decent but not optimal — consider July (8.0/10) if possible.
Does it rain a lot in Java in September?
Yes, 54% of days see rain in September. Plan some indoor activities as backup.
Accommodation
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Activities & tours
Activities and tours in Java
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