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Weather Comparison

Bangkok vs Singapore

Side-by-side weather comparison for September

Bangkok: 30°CSingapore: 30°C1,427 km apart

September Weather: Bangkok vs Singapore

MetricBangkokSingaporeBetter
Average HighHigher is warmer30°C (86°F)30°C (86°F)Tie
Average LowHigher is milder23°C (73°F)23°C (73°F)Tie
Rain DaysFewer is drier12 days12 daysTie
PrecipitationLess is drier140 mm140 mmTie
Sunshine HoursMore is sunnier4h/day4h/dayTie
HumidityLower is more comfortable82%82%Tie
UV IndexLower is safer66Tie
Wind SpeedCalmer is better15 km/h15 km/hTie

Which City is Better in September?

Bangkok and Singapore are closely matched in September. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.

Bangkok can feel quite hot at 30°C, so plan for heat. Singapore runs hot at 30°C.

For travelers who prioritize dry weather, both cities are equally dry in September.

Temperature Comparison in September

Bangkok reaches an average high of 30°C (86°F) and drops to 23°C (73°F) at night during September. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.

Singapore averages 30°C (86°F) for the high and 23°C (73°F) for the low, with a daily range of 7°C. The two cities feel quite similar in terms of temperature.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in September.

Rainfall Comparison in September

Bangkok receives approximately 140 mm of rainfall across 12 rain days during September. You can expect rain roughly every other day.

Singapore sees 140 mm over 12 rain days. Both cities are equally rainy this month.

Both cities share similar humidity levels at 82%.

What to Pack: Bangkok vs Singapore

Packing for Bangkok in September

Highs of 30°C, lows of 23°C, 12 rain days

  • lightweight breathable clothing
  • sunscreen SPF 50+
  • sunglasses
  • a wide-brimmed hat
  • waterproof jacket
  • compact umbrella
  • waterproof shoes
  • moisture-wicking fabrics

Packing for Singapore in September

Highs of 30°C, lows of 23°C, 12 rain days

  • lightweight breathable clothing
  • sunscreen SPF 50+
  • sunglasses
  • a wide-brimmed hat
  • waterproof jacket
  • compact umbrella
  • waterproof shoes
  • moisture-wicking fabrics

Pack for both: lightweight breathable clothing, sunscreen SPF 50+, sunglasses, a wide-brimmed hat, waterproof jacket, compact umbrella, waterproof shoes, moisture-wicking fabrics. These items are useful in either destination during September.

Year-Round Comparison: Bangkok vs Singapore

The table below shows average high temperatures and rain days for every month of the year, helping you find the best time to visit either city.September is highlighted for quick reference.

MonthBangkokSingapore
HighRainHighRain
Jan28°C7d28°C7d
Feb29°C9d29°C9d
Mar30°C12d30°C12d
Apr31°C15d31°C15d
May32°C17d32°C17d
Jun32°C18d32°C18d
Jul32°C17d32°C17d
Aug31°C15d31°C15d
Sep30°C12d30°C12d
Oct29°C9d29°C9d
Nov28°C7d28°C7d
Dec28°C6d28°C6d
30°

Bangkok Weather in September

Full forecast, packing tips, and activities

30°

Singapore Weather in September

Full forecast, packing tips, and activities

Frequently Asked Questions

Is Bangkok warmer than Singapore in September?
Bangkok and Singapore have the same average high temperature of 30°C (86°F) in September. The average lows are 23°C and 23°C respectively.
Which city gets more rain in September, Bangkok or Singapore?
Both cities average 12 rain days in September with similar precipitation levels.
Is it better to visit Bangkok or Singapore in September?
It depends on your preferences. Bangkok averages 30°C and 4 hours of daily sunshine with 12 rain days. Singapore averages 30°C with 4 sunshine hours and 12 rain days. If you prefer cooler conditions, choose Singapore. For fewer rain days, both are equal.
How far apart are Bangkok and Singapore?
Bangkok and Singapore are approximately 1,427 km (886 miles) apart. Bangkok is located in Thailand (Asia) while Singapore is in Singapore (Asia).
What is the best month to visit Bangkok and Singapore?
For Bangkok, May tends to be the best month with 7 hours of daily sunshine and a high of 32°C. For Singapore, May is typically ideal with 7 sunshine hours and 32°C highs.

Compare Bangkok and Singapore in Other Months

Climate data sourced from the Open-Meteo Historical Weather API, using ERA5 reanalysis data covering 30-year normals from 1991 to 2020. All temperatures shown in Celsius with Fahrenheit equivalents. Rain days count days with 1 mm or more of precipitation. Sunshine hours represent average daily values. This comparison is generated from long-term climate averages and individual trips may vary.

Bangkok coordinates: 13.76°N, 100.50°E | Singapore coordinates: 1.35°N, 103.82°E