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Weather Comparison

Bangkok vs Siem Reap

Side-by-side weather comparison for October

Bangkok: 30°CSiem Reap: 30°C364 km apart

October Weather: Bangkok vs Siem Reap

MetricBangkokSiem ReapBetter
Average HighHigher is warmer30°C (86°F)30°C (86°F)Tie
Average LowHigher is milder24°C (75°F)24°C (75°F)Tie
Rain DaysFewer is drier21 days23 daysBangkok
PrecipitationLess is drier194 mm225 mmBangkok
Sunshine HoursMore is sunnier9h/day10h/daySiem Reap
HumidityLower is more comfortable82%82%Tie
UV IndexLower is safer66Tie
Wind SpeedCalmer is better11 km/h11 km/hTie

Which City is Better in October?

Bangkok and Siem Reap are closely matched in October. 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. Siem Reap runs hot at 30°C.

For travelers who prioritize dry weather, Bangkok is the stronger choice in October. Siem Reap receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.

Temperature Comparison in October

Bangkok reaches an average high of 30°C (86°F) and drops to 24°C (75°F) at night during October. The daily temperature range is 6°C, meaning relatively stable temperatures from day to night.

Siem Reap averages 30°C (86°F) for the high and 24°C (75°F) for the low, with a daily range of 6°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 October.

Rainfall Comparison in October

Bangkok receives approximately 194 mm of rainfall across 21 rain days during October. Rain is frequent, so waterproof gear is essential.

Siem Reap sees 225 mm over 23 rain days. That makes Bangkok the drier option by 2 rain days and 31 mm of total precipitation.

Both cities share similar humidity levels at 82%.

What to Pack: Bangkok vs Siem Reap

Packing for Bangkok in October

Highs of 30°C, lows of 24°C, 21 rain days

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

Packing for Siem Reap in October

Highs of 30°C, lows of 24°C, 23 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 October.

Year-Round Comparison: Bangkok vs Siem Reap

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.October is highlighted for quick reference.

MonthBangkokSiem Reap
HighRainHighRain
Jan31°C3d31°C2d
Feb32°C3d33°C3d
Mar34°C6d34°C9d
Apr35°C11d34°C15d
May33°C21d33°C22d
Jun32°C22d32°C21d
Jul32°C23d32°C22d
Aug31°C24d31°C25d
Sep31°C26d30°C26d
Oct30°C21d30°C23d
Nov31°C7d30°C9d
Dec31°C2d30°C3d
30°

Bangkok Weather in October

Full forecast, packing tips, and activities

30°

Siem Reap Weather in October

Full forecast, packing tips, and activities

Frequently Asked Questions

Is Bangkok warmer than Siem Reap in October?
Bangkok and Siem Reap have the same average high temperature of 30°C (86°F) in October. The average lows are 24°C and 24°C respectively.
Which city gets more rain in October, Bangkok or Siem Reap?
Siem Reap gets more rain in October with 23 rain days and 225 mm of precipitation. Bangkok is the drier option with 21 rain days.
Is it better to visit Bangkok or Siem Reap in October?
It depends on your preferences. Bangkok averages 30°C and 9 hours of daily sunshine with 21 rain days. Siem Reap averages 30°C with 10 sunshine hours and 23 rain days. If you prefer cooler conditions, choose Siem Reap. For drier weather, Bangkok is the better pick.
How far apart are Bangkok and Siem Reap?
Bangkok and Siem Reap are approximately 364 km (226 miles) apart. Bangkok is located in Thailand (Asia) while Siem Reap is in Cambodia (Asia).
What is the best month to visit Bangkok and Siem Reap?
For Bangkok, January tends to be the best month with 11 hours of daily sunshine and a high of 31°C. For Siem Reap, January is typically ideal with 11 sunshine hours and 31°C highs.

Compare Bangkok and Siem Reap 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 | Siem Reap coordinates: 13.37°N, 103.84°E