September 25 is generally a great time to visit Bali. While there is a slight chance of rain (17%), showers are usually brief. Expect comfortable 27°C weather. Expect a bustling atmosphere in Bali right now—this is when the city truly comes alive with visitors.
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Essential Travel Info for Bali
Currency
IDR
Rp Indonesian rupiah
Language
Indonesian
Driving
Left side
Connect
Unfortunately, it is very unlikely you w...
Safety
High Safety
GPI: 1.8
Bali Weather Forecast for September 25
"Warm & Sunny. Expect average highs of 27.3°C. 17% chance of rain."
What to Wear in Bali in September
Based on historical data for September 25, Bali typically experiences temperatures between 24°C and 27.3°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (17% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Bali
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
27.3°C
Daytime Peak
Average Low
24°C
Nighttime Low
Feels Like
30.8°C
🔥 Feels warmer
Rain Chance
17%
Avg 1.2mm if it rains
Cloud Cover
58%
Light drizzle
Pressure
1011.9 hPa
Low volatility
Bali Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 90% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
06:00 - 10:00
16:00 - 18:00
Type I-II
🔴 23 min to burn
Type III-IV
🟡 35 min to burn
Type V-VI
🟢 58 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
24.2°C
Humid/Sticky
Heat Index
30.8°C
Feels hotter
😐 Best outdoor time:
Morning hours (before 11 AM)
Marine Conditions
Jellyfish Warning
High water temps may attract jellyfish swarms.
Swim Index
⚠️ Mixed Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Indonesia
Flight Traffic
High
96/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~213
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Bali
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:08
☀️ Noon
12:12
🌇 Sunset
18:16
⏱️ Daylight
12h 7m
Wind Speed
20.1 km/h
Moderate wind
Sunshine
11.2 hrs
Direct Sun (Cloud-free)
Humidity
83%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Bali
Smart Flight Estimator
Airport-to-Airport Logistics
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Add your home location in settings to see airport details.
Travel Health & Safety in Bali
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Mild discomfort possible for arthritic conditions.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Active seismic zone. Multiple earthquakes per year.
Volcanic Activity
Nearest: Mount Agung
55.9km away
Travel Alert: This region has elevated natural risks. We recommend registering with your embassy and keeping emergency numbers handy.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Bali on September 25 averages 27.3°C with a 17% precipitation probability. Wedding/Outdoor Event Score: 96/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Bali Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
September 26
27.4°C • 14% rain
Score
100
September 27
27.4°C • 12% rain
Score
100
September 28
27.4°C • 13% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (September 25) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Bali Worth Visiting on September 25?
Planning a trip to Bali on September 25? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 27.3°C with a 17% historical precipitation risk.
✈️ Travel Logistics: Approximately 213 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 11 vaccinations are recommended for Indonesia, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 28.7°C (tropical bath). Wave conditions are generally surfers only with heights around 1.56m.
📊 Historical Extremes: The hottest September 25 recorded in the last 30 years saw temperatures hit 29.2°C in 2024, while the coldest dropped to 23.1°C in 2023.