Sigiriya weather in May
Sri Lanka

May in Sigiriya: sweltering, rainy, with clean air — a gamble, with 35°C afternoons.
#10 of 12 months in Sigiriya · #1101 of 1383 destinations to visit in May · comfort 64/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sigiriya in May
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 — May
| Daytime high | 31°C / 89°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 25°C / 76°F | |
| Feels like (high) | 35°C / 95°F | |
| Rainfall | 120 mm / 4.7 in | 🌧 rainy |
| Rainy days | 12 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 23°C / 73°F | |
| Sunshine | 9.9 h/day | |
| Daylight | 12.5 h | |
| Wind | 20 km/h / 12 mph | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Sigiriya in May
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.
BusyDry-zone season, school holidays in 2 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).
Toughest weatherSigiriya's best weather comes in February, March and June — separate windows, not one continuous season.
May coincides with Hornets on the rock face.
Best weatherFair weatherToughest weather
What's on in Sigiriya in May
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
Dry-zone season
15 May – 15 SepDry seasonCrowdedThe reliable half of the year here, on the opposite schedule to the south coast. The tanks drop, the scrub browns off, and the climb is dry underfoot but has no shade on it at all.
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 May — FAQ
- Is May a good time to visit Sigiriya?
- May in Sigiriya: sweltering, rainy, with clean air — a gamble, with 35°C afternoons. It ranks #10 of 12 months for Sigiriya on SeasonMap's comfort score (64/100).
- What is the weather like in Sigiriya in May?
- In May, Sigiriya averages a daily high of 31.4°C and a low of 24.7°C, with about 119.8 mm of rain over roughly 11.6 rainy days.
- What is the air quality in Sigiriya in May?
- Sigiriya has a mean US Air Quality Index of about 44 in May.
Other months in Sigiriya
Compare Sigiriya in May
Warmer or cooler than Sigiriya in May
Similar destinations in South Asia — May
Within 300 km: Trincomalee's Blue and sperm whale season around 1 May – 15 Oct, and Nuwara Eliya's Adam's Peak pilgrimage season around 5 Dec – 10 May.