Mirihana Weather in December

With daytime temperatures of 31°C (88°F) and nighttime lows of 24°C (75°F), December in Mirihana brings very high temperatures during the day. Do keep in mind that December is part of the rainy season, with frequent and often heavy rainfall.

Rainfall in Mirihana in December

As part of the rainy season, Mirihana sees around 10 days of rain in December, with an average of 192 mm (7.6 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours, often in the late afternoon.

Temperature in Mirihana in December

Daytime highs in Mirihana in December reach 31°C (88°F), with nights around 24°C (75°F). It's usually most comfortable outside during the morning and later in the day. Nights are warm at 24°C (75°F). It's worth making sure your accommodation has decent ventilation or air conditioning.

Sunshine in Mirihana in December

There are approximately 217 hours of sunshine this month, despite being the rainy season. Rain often arrives in the late afternoon or evening, keeping mornings and early afternoons sunny. Even during the wet season, it could still be a nice time to visit.

Wind Speed in Mirihana in December

Wind speeds average 1 m/s (2 knots) during December. At this speed, you'll experience mostly light air movement that's just barely noticeable. As an average, some days will be completely calm while others have gentle breezes you can feel on your skin.

Average water temperature in December

With water at 27°C (81°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Mirihana. Our weather planner can help you explore destinations with more pleasant weather conditions.

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• January
• February
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• May
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For a detailed overview over the year and the best time to visit Sri Lanka, check out our Mirihana's climate page.

Mirihana Temperature in December

Min Temperature 24°C (75°F)  

Max Temperature 31°C (88°F)  

Water Temperature 27°C (81°F) *  

Chance of Rain 33%  

Precipitation 192 mm (7.6 in)  

Rainy days 10 days  

Humidity 72% *  

Windspeed 1 m/s (2 knots) *  

Sunshine 217 hours *  

Percentage Sunshine *  

* Data from: Colombo, Sri Lanka (5 KM, 3 Miles).

What to Wear in Mirihana in December

Warm temperatures in December make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! With water temperatures around 27°C (81°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Mirihana in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

8/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Sri Lanka, check out our Mirihana's climate page.

More climate data for Mirihana

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Mirihana climate overview or explore weather in Sri Lanka.