Monthly weather averages & travel planning

Asia › 🇹🇭 Thailand › Bangkok
Updated: March 2026
October is a fair time to visit Bangkok (4/10). With 9 daily sunshine hours and only 21 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 11th sunniest of the year in Bangkok. October suits travellers visiting for indoor culture, food, and architecture rather than outdoor activities. Pack accordingly for 21 potential rain days. November offers a similar profile at lower hotel rates if dates are flexible. Watch out for prolonged rain stretches: with 21 wet days, a fully outdoor itinerary is risky. Build in museum days and covered market visits as contingency. Planning tips: most accommodation categories have availability, and last-minute deals are common. The quieter streets and shorter queues can make this a genuinely enjoyable time to visit for the right type of traveller. Budget-conscious visitors will find the best value of the year in this period.
Visiting Bangkok in October means warm daytime temperatures peaking at 30°C. Factor in 21 potential rainy days and 82% average humidity when planning your daily activities.
30°C
86°F
Avg High
24°C
75°F
Avg Low
21 days
194 mm total
Rain Days
9h
per day avg
Sunshine
82%
Humid
Humidity
The 6°C day-night temperature range is typical for continental climates: a light jacket in the morning that you shed by midday and need again after sunset. At 82% humidity, the 30°C daytime high feels 2-4°C warmer in practice: quick-dry fabrics and shade-seeking between noon and 3pm are the sensible response. UV index averages 6 this month, classed as moderate. Sunscreen is a sensible precaution for extended outdoor time, particularly at midday. Winds are calm at an average 11 km/h, so wind-chill is not a factor in planning your clothing. In Fahrenheit: 86°F average high, 75°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Packing for Bangkok in October means dressing for 30°C days and 24°C evenings. A lightweight linen or cotton shirt with loose-fit trousers or a sundress handles the 30°C daytime heat. Evening temperatures settle at 24°C, a modest 6°C drop that a light cardigan or denim jacket covers. For footwear, breathable walking sandals work for casual exploration, but closed-toe trainers are better for uneven surfaces in the historic centre. With 21 rain days expected, a compact travel umbrella is worth the bag space. A waterproof jacket is better than an umbrella if you plan full-day outdoor routes. For temple and religious site visits, carry a lightweight scarf or sarong to cover shoulders and knees, required at most major sites across the region. At 82% average humidity, quick-dry synthetic or bamboo fabrics dry overnight and stay comfortable longer than cotton.
Local tip: Loose-weave linen and moisture-wicking fabrics are the practical choice in Bangkok's heat and humidity. Many shopping centres run air conditioning at near-arctic levels, so a thin layer in your bag prevents discomfort indoors.
October has no major festivals or public holidays in Bangkok, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
Based on 30°C average highs and 21 rainy days
In October, Bangkok sits in the dry season corridor, as the ITCZ shifts away from the region and trade winds bring drier, more stable air. This produces reliably sunny days reaching 30°C, with lower humidity than the wet months. Overnight lows of 24°C offer a pleasant reprieve from the midday heat. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate, wear sunscreen. UV 6-7: High, hat and SPF 30+ essential. UV 8-10: Very High, limit midday exposure. UV 11+: Extreme, seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry, skin and throat may feel parched. 40-60%: Comfortable, ideal for most people. 60-80%: Sticky, light breathable fabrics recommended. Above 80%: Muggy, heat feels more intense; quick-dry clothing is essential.
Bangkok in October
October ranks 11th sunniest of the year in Bangkok, with an average 9 daily sunshine hours. The driest months are December, January, and February. April is the hottest month (35°C avg high); October is the coolest (30°C). From here, temperatures rise 1°C into November. Compared to last month (September: 31°C high, 26 rain days), October is cooler and drier. October is one of the least sunny months, but that often means lower prices and fewer fellow tourists.
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 31°C | 21°C | 3 | 11h | View |
| February | 32°C | 23°C | 3 | 11h | View |
| March | 34°C | 25°C | 6 | 11h | View |
| April | 35°C | 27°C | 11 | 11h | View |
| May | 33°C | 26°C | 21 | 10h | View |
| June | 32°C | 26°C | 22 | 10h | View |
| July | 32°C | 26°C | 23 | 9h | View |
| August | 31°C | 25°C | 24 | 8h | View |
| September | 31°C | 25°C | 26 | 9h | View |
| October | 30°C | 24°C | 21 | 9h | View |
| November | 31°C | 23°C | 7 | 10h | View |
| December | 31°C | 21°C | 2 | 10h | View |
January
3 rain days, 11h sun
February
3 rain days, 11h sun
March
6 rain days, 11h sun
April
11 rain days, 11h sun
May
21 rain days, 10h sun
June
22 rain days, 10h sun
July
23 rain days, 9h sun
August
24 rain days, 8h sun
September
26 rain days, 9h sun
October
21 rain days, 9h sun
November
7 rain days, 10h sun
December
2 rain days, 10h sun
Cities within 500 km with comparable weather conditions
Data Sources for Bangkok
Climate normals represent 30-year averages (1991-2020). Individual years may vary.