Phuket Weather in December

🇹🇭 Thailand

28°C

High

25°C

Low

Rain Days

10h

Sunshine

82%

Humidity

Asia › 🇹🇭 Thailand › Phuket

Updated: March 2026

Is December a Good Time to Visit Phuket?

6/10

Good

December is a good time to visit Phuket (6/10). With 10 daily sunshine hours and only 12 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 6th sunniest of the year in Phuket. Culture-focused travellers and those who prefer lighter crowds will find December a practical choice, with prices running lower than peak February without sacrificing all the good weather. November offers a similar profile at lower hotel rates if dates are flexible. The main practical note: Phuket's popular sites are busiest between 10am and 3pm regardless of season. Arriving at opening time or after 4pm makes a significant difference to the experience. Planning tips: accommodation is generally available without long lead times, and flight prices are typically lower than peak season. Flexible travellers will find the best deals by booking 2-4 weeks ahead. Mid-week arrivals consistently unlock lower hotel rates than weekend check-ins.

vs November:28°C avg high

Based on 30-year climate normals (1991 to 2020), December in Phuket averages 28°C by day and 25°C overnight, a range that places it firmly in the warmer tier of the annual calendar. The month records approximately 10 sunshine hours per day and 86mm of total rainfall across 12 wet days, giving it a sunshine-to-rain ratio that is broadly workable for most itineraries.

28°C

Avg High

25°C

Avg Low

12 days

Rain Days

10h

Sunshine

82%

Humidity

Temperature in Phuket in December

The narrow 3°C gap between daytime and overnight temperatures, characteristic of coastal cities with maritime moderation, means a single mid-layer works across the whole day. At 82% humidity, the 28°C daytime high feels 2-4°C warmer in practice: quick-dry fabrics and shade-seeking between noon and 3pm are the sensible response. The UV index of 3 is low, meaning sun exposure is minimal concern and sunscreen is largely optional. Wind averages 21 km/h, light enough to be refreshing on warm days but noticeable in open coastal areas or elevated viewpoints. In Fahrenheit: 82°F average high, 77°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).

Temperature in December

Monthly Precipitation (mm)

What to Wear in Phuket in December

Morning25°CBefore the day warms up

Afternoon28°CPeak daytime temperature

Evening28°CAfter sunset cools down

Packing for Phuket in December means dressing for 28°C days and 25°C evenings. A light cotton tee with a casual overshirt works well at 28°C, the overshirt doubles as a layer for air-conditioned venues. Evening temperatures settle at 25°C, a modest 3°C drop that a light cardigan or denim jacket covers. Comfortable walking trainers are the versatile choice for both outdoor sightseeing and indoor venues. A compact foldable umbrella weighs almost nothing and earns its keep across 12 potential rainy days. 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: Temple and religious site visits require covered shoulders and knees in most of Phuket's heritage areas. A lightweight scarf or sarong weighs almost nothing and solves the problem instantly.

Events in Phuket in December

December has no major festivals or public holidays in Phuket, 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.

What to Pack for Phuket in December

Based on 28°C average highs and 12 rainy days

Light layers for morning and evening
Breathable T-shirts and comfortable trousers
UV-protective sunglasses
Quick-dry travel towel
Anti-chafe balm for long walking days
Moisture-wicking synthetic fabrics for active days
Compact folding umbrella
Waterproof outer layer or packable rain jacket
Quick-dry clothing that recovers fast after a shower
SPF 30+ sunscreen
Comfortable walking shoes (a second pair lets the first air out overnight)
Universal travel adapter
Small day pack for city exploration
Reusable water bottle

Best Activities in Phuket in December

Explore outdoor markets and street food stallsMid-morning (10am-12pm)At 28°C, the temperature is ideal for extended walking without overheating
Guided walking tour of the historic centreMorning or late afternoonComfortable temperatures allow several hours on foot without fatigue
Visit rooftop viewpoints and observation decksGolden hour (1 hour before sunset)Warm clear evenings provide exceptional visibility for panoramic photography
Day trip to the surrounding countryside or coastFull day (depart by 8am)December is reliably dry enough for rural day trips without weather risk
Afternoon in a world-class museum or galleryAfternoon (2-5pm)Pairs well with outdoor morning activities and provides a mid-day rest from sightseeing
Coffee-house or traditional cafe culture experienceMid-morning or post-lunchA cultural ritual in this region that rewards slow appreciation regardless of weather
Evening live music, theatre, or opera performanceEvening shows typically at 7-9pmConsistent evening temperatures make getting to and from evening venues comfortable
Visit the main botanical garden or city park at seasonal peakYear-round; best light in morningDecember brings distinct seasonal changes to public green spaces worth exploring
Seek out chilled local specialities: cold-brew tea, ice desserts, or chilled seafood at street-level stallsAny time; most atmospheric in evening marketsHot-weather street food culture peaks in December, with vendors setting up specifically for warm evenings

Why is Phuket warm in December?

In December, Phuket 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 28°C, with lower humidity than the wet months. Overnight lows of 25°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.

Frequently Asked Questions: Phuket in December

In December, Phuket experiences average highs of 28°C (82°F) and lows of 25°C (77°F). Expect around 12 rainy days and 10 hours of sunshine per day, with humidity averaging 82%. The 3°C gap between daytime and overnight temperatures is worth planning around: light layers work for most visitors during the day, but an overshirt or cardigan handles the cooler evenings. UV exposure is moderate at index 3.

Phuket typically sees 12 rainy days in December, with total precipitation of around 86mm. Rain is moderate and manageable. Showers tend to pass quickly, and a light rain layer or foldable umbrella is sufficient protection for most days. For context, the driest month in Phuket typically sees 4-6 fewer rain days than December.

Pack light layers, a light jacket for evenings, comfortable walking shoes, and sunscreen for Phuket in December. Daytime temperatures of 28°C are pleasant, but the evening drop to 25°C means a jacket is essential if you plan to be out after dark. With 12 rainy days, bring a compact umbrella or waterproof jacket for unexpected showers. Comfortable walking shoes are a priority given the amount of ground most visitors cover.

December is a reasonable time to visit Phuket. Expect 12 rainy days, so pack a light rain layer for flexibility. Average temperatures of 28°C make outdoor exploration comfortable during the dry periods. With 10 daily sunshine hours, there are reliable windows of good weather to plan outdoor activities around, even if the month is not the driest on the calendar.

The average high temperature in Phuket in December is 28°C (82°F), and the average low is 25°C (77°F). The mean daily temperature is approximately 27°C (80°F). The day-to-night range of 3°C is narrow, typical of coastal or maritime cities. These are 30-year climate normals based on the 1991 to 2020 reference period; individual years will vary, particularly in transitional months like spring and autumn.

The best month to visit Phuket is generally February. February offers the most sunshine at 11 hours per day and only 4 rainy days. Average temperatures reach 29°C, making it comfortable for sightseeing, outdoor dining, and exploring the city. If your travel dates are flexible, planning your trip around February gives you the best chance of dry, bright weather.

December is shoulder or low season in Phuket, meaning fewer tourists and generally lower prices than peak months. With 10 sunshine hours and 12 rainy days, the weather is less of a draw for mass tourism. This is an advantage for travellers who prefer a quieter, more relaxed experience with shorter queues and easier accommodation availability.

In December, Phuket suits a range of activities thanks to mild temperatures around 28°C. Mix of indoor and outdoor activities works well given the moderate chance of rain. Top options include exploring historic neighbourhoods, visiting museums and galleries, local food markets, and day trips to surrounding areas. With 10 hours of sunshine, parks and waterfront walks are particularly enjoyable.

December ranks 6th sunniest of the year in Phuket, with an average 10 daily sunshine hours. The driest months are February, January, and March. March is the hottest month (30°C avg high); August is the coolest (28°C). From here, temperatures rise 1°C into January. Compared to last month (November: 28°C high, 21 rain days), December is similarly warm and drier. December sits in the middle of the annual sunshine ranking for Phuket, offering a reasonable balance of good weather and manageable crowds.

Year-Round Climate

Month	High	Low	Rain Days	Sun	Details
January	29°C	25°C	7	10h	View
February	29°C	26°C	4	11h	View
March	30°C	26°C	11	11h	View
April	30°C	27°C	18	10h	View
May	29°C	27°C	25	10h	View
June	29°C	26°C	23	9h	View
July	29°C	26°C	24	9h	View
August	28°C	26°C	24	9h	View
September	28°C	26°C	25	9h	View
October	28°C	25°C	27	8h	View
November	28°C	25°C	21	9h	View
December	28°C	25°C	12	10h	View

Other Months in Phuket

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Plan Your Trip to Phuket

Best Time to Visit Phuket Phuket vs Penang in December Phuket vs Langkawi in December

Nearby Destinations with Similar Weather

These cities are within 500 km and experience broadly comparable weather conditions during the same calendar month, making them practical standalone alternatives or worthwhile additions to a longer regional itinerary.

Penang🇲🇾 Malaysia348 km away

29°C25°C low

Langkawi🇲🇾 Malaysia230 km away

29°C24°C low

Koh Samui🇹🇭 Thailand254 km away

25°C23°C low

Data Sources for Phuket

Phuket on Wikipedia Open-Meteo Climate API NOAA National Centers UK Met Office WMO GeoNames

Climate normals represent 30-year averages (1991-2020). Individual years may vary.