Mirihana
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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.

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).

Mirihana Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Mirihana - and find the best time to visit.

Best Places in Sri Lanka in December

Find out more about the weather in Sri Lanka and which places have the best travel conditions in this month. See all of Sri Lanka in December →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Mirihana 3-Day Forecast

Popular in December

Where to go in December - average daytime high across popular destinations.

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