SeasonMapSri Lanka in September
September is Sri Lanka's 7th-best month (rank 7 of 12): its 12 destinations average 74/100, led by Arugam Bay at 88 — 37°C and 12 rainy days — while Nuwara Eliya is cooler at 22°C and scores 78.
#7 of 12 months for Sri Lanka · 12 destinations · updated September 2026 · climate normals from ERA5 reanalysis
Where in Sri Lanka in September
| # | Place | Type | Feels-like high | Rain | Comfort | At its best |
|---|---|---|---|---|---|---|
| 1 | Arugam Bay | Beach | 37°C | 56 mm · 12 days | 88 tier A | — |
| 2 | Trincomalee | Beach | 37°C | 47 mm · 9 days | 85 tier A | — |
| 3 | Nuwara Eliya | Trekking hub | 22°C | 219 mm · 26 days | 78 tier B | — |
| 4 | Mirissa | Beach | 33°C | 191 mm · 27 days | 76 tier B | — |
| 5 | Weligama | Beach | 34°C | 191 mm · 27 days | 76 tier B | — |
| 6 | Ella | Trekking hub | 30°C | 142 mm · 14 days | 74 tier B | — |
| 7 | Kandy | City | 33°C | 117 mm · 18 days | 72 tier B | — |
| 8 | Sigiriya | City | 34°C | 47 mm · 9 days | 72 tier B | — |
| 9 | Galle | Beach | 34°C | 251 mm · 28 days | 71 tier B | — |
| 10 | Bentota | Beach | 34°C | 252 mm · 28 days | 70 tier B | — |
| 11 | Anuradhapura | City | 37°C | 78 mm · 15 days | 66 tier C | — |
| 12 | Colombo | City | 35°C | 238 mm · 28 days | 55 tier D | — |
Comfort is SeasonMap's 0–100 score; each place is judged through the lens that suits it — beaches on beach weather, ski resorts on snow. "At its best" means September is one of that place's own top three months. Feels-like highs fold in humidity, wind and sun.
What's on in Sri Lanka in September
- Blue and sperm whale season · Trincomalee · 1 May – 15 Oct (usually)
- The Gathering at Minneriya · Sigiriya · 15 Jul – 30 Sep (usually)
- SFSL surf championship leg · Arugam Bay · 5–20 Sep (usually)
Seasons in force
Peak crowds at 2 of Sri Lanka's 6 well-known places this month.