SeasonMapSigiriya weather in December
Sri Lanka
December in Sigiriya: hot, soaked, with clean air — fine if you can take 20 rainy days.
#9 of 12 months in Sigiriya · #832 of 1383 destinations to visit in December · comfort 66/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sigiriya in December
Other months in Sigiriya
Sri Lanka's forum calls February one of the hottest months in the Cultural Triangle around Sigiriya, hot and humid but with the southwest generally in its dry season while the east coast still sees poorer weather. Regulars recommend planning the Sigiriya rock climb around the cooler parts of the day and staying well hydrated, with the nearby hill country offering a cooler contrast if needed.
Add your own note from Sigiriya's card on the map.
Sigiriya climate normals — December
| Daytime high | 28°C / 82°F | 🥵 hot |
|---|---|---|
| Nighttime low | 22°C / 71°F | |
| Feels like (high) | 31°C / 88°F | |
| Rainfall | 166 mm / 6.5 in | ⛈ soaked |
| Rainy days | 20 days | |
| Humidity | 86% | 💦 very humid |
| Dew point | 21°C / 71°F | |
| Sunshine | 8.5 h/day | |
| Daylight | 11.7 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 46 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Sigiriya in December
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsChristmas and New Year peak, Year-end break in Sri Lanka, school holidays in 5 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Sigiriya's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherSigiriya's best weather comes in February, March and June — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Sigiriya in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Hornets on the rock face
1 Jan – 31 DecInsect seasonClosuresGiant hornet nests hang under the overhangs, wire cages sit on the stairs for people to shelter in, and the site is closed at short notice when a nest goes up. Nobody shouts on the climb for a reason. Source ↗
- Season
Northeast (Maha) monsoon
15 Oct – 15 Jan · usuallyRiskThe dry zone takes its rain now, in heavy evening bursts rather than all day. The stairs and the gallery are slick when it is wet, and the site closes the summit route in a thunderstorm.
- Holiday
Christmas and New Year peak
20 Dec – 5 JanChristmas & New YearCrowdedBook earlyThe cultural triangle is on every two-week Sri Lanka itinerary and they all run in this fortnight. Hotel rates around the rock double and the ticket queue starts before the gate opens. Source ↗
Nearby, and something's on
Within 300 km of Sigiriya — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Sigiriya?
Sigiriya in December — FAQ
- Is December a good time to visit Sigiriya?
- December in Sigiriya: hot, soaked, with clean air — fine if you can take 20 rainy days. It ranks #9 of 12 months for Sigiriya on SeasonMap's comfort score (66/100).
- What is the weather like in Sigiriya in December?
- In December, Sigiriya averages a daily high of 27.5°C and a low of 21.8°C, with about 166.2 mm of rain over roughly 20.4 rainy days.
- What is the air quality in Sigiriya in December?
- Sigiriya has a mean US Air Quality Index of about 46 in December.
Other months in Sigiriya
Compare Sigiriya in December
Warmer or cooler than Sigiriya in December
Similar destinations in South Asia — December
Within 300 km: Nuwara Eliya's Adam's Peak pilgrimage season around 5 Dec – 10 May, and Colombo's Blue whales off Mirissa around 1 Nov – 15 Apr.