Sigiriya weather in May

May in Sigiriya: sweltering, rainy, with clean air — a gamble, with 35°C afternoons.

Updated September 2026 · climate normals from ERA5 reanalysis

Sigiriya🇱🇰 Sri Lanka · Sri Lanka & the Maldives · City64
  1. 74Jan
  2. 80Feb
  3. 75Mar
  4. 68Apr
  5. 64May
  6. 76Jun
  7. 73Jul
  8. 74Aug
  9. 72Sep
  10. 60Oct
  11. 52Nov
  12. 66Dec

#10 of 12 months in Sigiriya · #1123 of 1413 destinations to visit in May · comfort 64/100 (tier C)

Days
31°C
Nights
25°C
Wet days
12
Sun
9.9 h
Humidity
78%
Daylight
13 h
Sigiriya, Sri Lanka
Photo: Andreas Schnabl · Pexels

Traveller notes on Sigiriya in May

Notes from nearby Nuwara Eliya (109 km away)

Sigiriya doesn't have its own notes for May yet — these are about Nuwara Eliya, close enough to share the season.

Nuwara Eliya-forum threads on early May weather describe daytime readings as comfortably cool, typically high teens to low twenties, though a cloudy day can push things down toward fifteen. Regulars call this genuinely one of the more reliably damp stretches locally, real showers or thunderstorms likely on most days rather than the exception. Posters describe the town's reputation for persistently cool, moist conditions as well earned, though May specifically adds a heavier rain pattern on top of the usual chill. Regulars recommend real waterproof layers and proper boots given how muddy trails turn after a system, tea plantation walks especially prone to slick footing. Posters call nights genuinely brisk, typically dropping into single digits, a real jacket essential after dark. Regulars recommend flexible outdoor plans given how unpredictable timing runs. The record: 21.3C days feeling like 24C, 13.8C nights, an extraordinarily high 326.7mm across 29 days and 87 percent humidity.
NuwaraEliyaMayRegular · May · 1 month ago · about Nuwara Eliya · Read more on Tripadvisor ↗

Other months in Sigiriya

Regulars are specific this counts as peak season here, daytime highs commonly cited around 30C with nights in the low-to-mid 20s, moderate conditions well suited to a full day trip up the rock fortress. Our row backs that hot, genuinely wet read, 27.3C reading as a hot 30C, over 21.2C nights feeling 24C, with a substantial 107.5mm of rain across 14.6 days and humidity at 83 percent. Regulars are honest this technically falls within the January-through-April dry season by label, though real rainfall stays genuinely on the higher side this specific month, a rain jacket worth keeping handy regardless of the dry-season reputation. The record: 8.8 hours of sun, a 14.1 kph wind and AQI 55.
PeakSeasonRainierThanDryLabel · January · 1 month ago · Read more on tripadvisor.in ↗
One regular puts it precisely: the climb is genuinely tiring if you start around ten in the last week of March. Their answer is the ticket office at half past six, straight up, and down before the coaches - the rock starts filling at nine. Our row explains the urgency: 31C that reads as 35C at 77 percent humidity, on a staircase of stone and open metal walkways with no shade on them. Nights only fall to 22.4C. Rain is light for the tropics at 47.4mm across 9.5 days, which is the pre-monsoon shower rather than the season. The other school prefers late afternoon for the sunset and the quiet. The record: 10.5 hours of sun, a 13.3 kph wind and AQI 61.
TicketOfficeAtHalfSix · March · 1 month ago · Read more on Tripadvisor ↗
June is a good month for the cultural triangle - while the southwest takes the monsoon, Sigiriya, Dambulla and Kandy stay comparatively settled, with showers most likely in the evening. The forum's real subject is the hour, not the month. The rock opens at 7am, occasionally 6, and the advice is to be there for it: the staircase side is in shade early, the crowds on the stairs and the summit are at their thinnest, and the sun is already strong by 9.30 or 10, which is exactly when a late starter is halfway up. If the morning is gone, wait until after 3.30pm. The record: 31.4C days feeling like 33C, 24.8C nights, 3.8 precipitation days, 10.7 hours of sun, a 26 kph breeze and AQI 33.
LionRockAtSeven · June · 1 month ago · Read more on Tripadvisor ↗
Forum posters explain that August is southwest-monsoon season, which hits the south and west coasts (Colombo, Galle) and the hill country - but the Cultural Triangle where Sigiriya sits is largely spared that pattern, staying warm and mostly sunny with just an occasional late-afternoon or evening shower. August also ranks as Sri Lanka's second-busiest tourist season overall. Posters commonly recommend Sigiriya and nearby Dambulla as a good stopover point on the route from Colombo to the less-monsoon-affected east coast (Trincomalee, Pasikuda, Arugam Bay), making it a smart August base regardless of what the west coast is doing.
Tripadvisor community · August · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Sigiriya's card on the map.

Sigiriya climate normals — May

Daytime high31°C / 89°F🔥 sweltering
Nighttime low25°C / 76°F
Feels like (high)35°C / 95°F
Rainfall120 mm / 4.7 in🌧 rainy
Rainy days12 days
Humidity78%💦 very humid
Dew point23°C / 73°F
Sunshine9.9 h/day
Daylight12.5 h
Wind20 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)

JFMAMJJASOND

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.

JFMAMJJASOND

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 DecInsects & diseaseClosures

    Giant 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 seasonCrowded

    The 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.

What's on around the world in May →

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?

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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.

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.