2026 Climate Averages

Weather: Galle & Sri Lanka South Coast — December

The weather is near-perfect with ideal temperatures and minimal rain. Recommended month to visit.

🌟 Climate Overview

December is an excellent time to visit Galle & Sri Lanka South Coast. Hot conditions with temperatures reaching 30°C—stay hydrated and seek shade. This is one of the wettest months—waterproof gear is essential. As peak season, expect higher prices and more tourists. Sea temperature of 29°C is perfect for swimming.

4.7
GoTripzi Score Fair

Based on weather comfort, crowds, prices, and activity options

Avg High

30°C

Avg Low

24°C

Rainy days

22days

Daylight

11.8h

Feels like 36°C / 29°C — humidity makes it feel warmer

Rainfall

207mm

Sunshine

9.4h/day

Humidity

86%

Very Muggy
Sun Strength

6.9

High
Wind

11 km/h (gusts 25)

Sea Temp

29°C 🏊 Comfortable

Is December a good time to visit Galle & Sri Lanka South Coast?

The weather is near-perfect with ideal temperatures and minimal rain.

Now

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Feels like --
Wind --
Humidity --
UV Index --
Local time —

Air Quality

Travel Context

  • Crowds
    Very Busy
  • Travel Costs Peak Rates

Daylight

Sunrise

06:12

Sunset

17:58

11.8h daylight

Visiting Galle & Sri Lanka South Coast in December: Pros & Cons

Pros

  • Abundant sunshine for beach and outdoor fun
  • Warm sea perfect for swimming and snorkeling
  • One of the best months to visit

Cons

  • Frequent rain may disrupt outdoor activities
  • Peak season — expect crowds and higher prices
  • High humidity makes the heat feel oppressive

Things to Do in December

Events & Festivals

🌸
Blue Whale Watching Season (Mirissa)
November–April (peak February–mid March) Nature

Recommended for This Weather

🏊 Swimming & beach activities
🤿 Snorkeling & water sports
🏖️ Beach relaxation & sunbathing
🏛️ Museums & galleries
🍳 Cooking classes & food tours
🎭 Cultural tours & local experiences

Galle & Sri Lanka South Coast Weather by Month

Month Avg High Avg Low Rain Sunshine Humidity UV Index Crowds Condition
Jan 30°C 24°C 20d (195mm) 9.4h
85% Very Muggy
7.3 Very High
Excellent
Feb 31°C 24°C 12d (78mm) 10.7h
82% Very Muggy
8.7 Very High
Excellent
Mar 31°C 25°C 21d (128mm) 10.5h
82% Very Muggy
8.7 Very High
Excellent
Apr 31°C 25°C 28d (202mm) 10.5h
86% Very Muggy
8.5 Very High
Wet
May 30°C 26°C 30d (376mm) 9.4h
88% Very Muggy
7.1 Very High
Wet
Jun 30°C 26°C 29d (229mm) 10.5h
88% Very Muggy
7.5 Very High
Wet
Jul 29°C 26°C 29d (220mm) 9.8h
87% Very Muggy
7.3 Very High
Wet
Aug 29°C 25°C 28d (214mm) 10.1h
88% Very Muggy
7.8 Very High
Wet
Sep 29°C 25°C 29d (262mm) 9.5h
88% Very Muggy
7.4 Very High
Wet
Oct 29°C 25°C 28d (292mm) 9.1h
89% Very Muggy
7 High
Wet
Nov 30°C 24°C 26d (368mm) 8.4h
88% Very Muggy
6.4 High
Wet
Dec Current 30°C 24°C 22d (207mm) 9.4h
86% Very Muggy
6.9 High
Excellent

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4.712.Dec
4.7

Where to Stay

See hotels, apartments & rentals around Galle & Sri Lanka South Coast – live prices from Booking.com, Expedia, Vrbo and more

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Galle & Sri Lanka South Coast

South Coast paradise with Galle Fort, Mirissa whales, Unawatuna beaches, and tea country train rides.

View Full Destination Guide

What to Pack for December

Light, breathable fabrics like cotton and linen are essential. Opt for loose-fitting clothing in light colors to stay cool. A waterproof jacket and shoes are non-negotiable — showers are frequent. Don't forget a wide-brimmed hat and high-SPF sunscreen — the sun is strong.

Tropical Very Busy

🎒Personalized Packing List

Tell us about your trip and we'll create a custom packing list based on the weather.

Your Packing List

📋Essentials
👕Clothing
👟Footwear
🎒Accessories
🧴Toiletries & Health

Planning a trip to Galle & Sri Lanka South Coast?

🔥 Peak season — book early for best rates

Frequently Asked Questions

Is December a good time to visit Galle & Sri Lanka South Coast?
December is typically excellent for visiting Galle & Sri Lanka South Coast, with average highs of 30°C and around 22 rainy days. Plan your activities accordingly—outdoor sightseeing is best on dry days, while rainy days are perfect for museums and indoor attractions.
Does it get cold at night in Galle & Sri Lanka South Coast in December?
Nights stay pleasantly warm in Galle & Sri Lanka South Coast during December, around 24°C. Light evening wear is sufficient, and outdoor dining is very comfortable. Many locals and visitors enjoy late-night walks and outdoor activities after sunset.
What should I pack for Galle & Sri Lanka South Coast in December?
With highs of 30°C and lows of 24°C in December, we recommend: Compact umbrella, Waterproof jacket/shell, Water-resistant shoes, Lightweight breathable clothes. Layering is key as temperatures can vary between air-conditioned interiors and outdoors. Comfortable walking shoes are essential for cobblestone streets.
Does it rain a lot in Galle & Sri Lanka South Coast in December?
Galle & Sri Lanka South Coast typically sees around 22 rainy days in December. Rain is usually in the form of brief showers rather than all-day downpours, so a compact umbrella is sufficient. Mornings tend to be drier, making them ideal for outdoor sightseeing.
Can you swim in Galle & Sri Lanka South Coast in December?
Yes, December is excellent for swimming in Galle & Sri Lanka South Coast! With warm air temperatures around 30°C, the water is comfortable for extended beach sessions. This is peak beach season, so arrive early to secure a good spot at popular beaches.
How many hours of daylight are there in Galle & Sri Lanka South Coast in December?
In December, Galle & Sri Lanka South Coast gets approximately 11.8 hours of daylight per day. This affects how much sightseeing you can fit in—longer days mean more time for outdoor activities, while shorter days are perfect for cozy museum visits and early dinners.
Is December peak season in Galle & Sri Lanka South Coast?
Yes, December is peak season in Galle & Sri Lanka South Coast. Expect higher prices for accommodation and more crowds at popular attractions, but also the best weather conditions. Book hotels and major attractions in advance to secure availability and better rates.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Solar calculations: SunCalc (timezone: Asia/Colombo)

Last Updated: February 2026

More Galle & Sri Lanka South Coast Guides

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