Penang · AutumnMonth summary
Penang weather in September
⚠️ Fair
🌡️ Temperature min / max
25°C – 30°C
🌧 Rainy days
87% of days
☀️ Sunshine
8.9h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
6.6/10
📅 📅 Best month
January (7.2/10)
Quick decision
Should you visit Penang in September?
⚠️ Fair
✅ 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: Not the best window: 87% rain risk and 8.9h of sunshine. January is much safer.
By trip type
Penang in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ⚠️ Possible
- 🏖️ Beach / swimming : ⚠️ Possible
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in September
🎯 Harvest season — fresh local produce at markets and restaurants Autumn marks the end of peak season in Penang. Temperatures drop (30°C) and rain returns (87% of days). With 87% of rainy days, always have indoor alternatives planned. Not the best window, but acceptable if dates are constrained. January (7.2/10) is significantly better if possible.
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All months for Penang
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ⛅ January | 24°C | 30°C | 62% | 5.0 | 10.5h | 7.2/10 |
| 🌤️ February | 25°C | 31°C | 55% | 4.4 | 11.0h | 7.2/10 |
| ⛅ March | 25°C | 31°C | 75% | 6.3 | 11.0h | 7.0/10 |
| 🌦️ April | 25°C | 30°C | 93% | 11.1 | 10.1h | 6.5/10 |
| 🌧️ May | 26°C | 30°C | 90% | 13.2 | 9.1h | 6.1/10 |
| ⛅ June | 26°C | 30°C | 76% | 7.4 | 10.0h | 7.0/10 |
| ⛅ July | 26°C | 30°C | 66% | 5.8 | 10.0h | 7.1/10 |
| 🌧️ August | 25°C | 30°C | 81% | 9.6 | 9.8h | 7.0/10 |
| 🌧️ September | 25°C | 30°C | 87% | 11.0 | 8.9h | 6.6/10 |
| 🌧️ October | 25°C | 29°C | 92% | 13.8 | 8.5h | 6.3/10 |
| 🌧️ November | 25°C | 29°C | 97% | 13.5 | 8.2h | 5.9/10 |
| ⛅ December | 24°C | 29°C | 74% | 7.0 | 8.9h | 7.1/10 |
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, Penang averages 30°C, 87% rainy days and 8.9h of sunshine per day. Overall weather score: 6.6/10.
See methodology →
Comparison
September vs January (best month)
The best month is January (score 7.2/10). Difference:
- 🌡️ Max temperature : +0°C
- 🌧 Rainy days : -25%
- ☀️ Sunshine : +1.6h/day
FAQ
FAQ — Penang in September
Is September a good time to visit Penang?
September is an acceptable time for Penang (score 6.6/10). Conditions are decent but not optimal — consider January (7.2/10) if possible.
Does it rain a lot in Penang in September?
Yes, 87% of days see rain in September. Plan some indoor activities as backup.
Accommodation
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