Weather in Kandy in September
Sri Lanka · 20-year averages, September
Shoulder season. September sits in between. You will get good days and you will lose some. You should expect rain on 17 days of the month, which is more days wet than dry.
September ranks 7 of 12 in Kandy: past the worst of the year but short of February, which is the month to book if the dates are open.
Rain on 17 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 29 °C days and 21.4 °C nights; the spread matters more here than any single number.
What the averages hide
Averages flatten a month, and this one hides a few things: 8 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest September day reached 34.1 °C and the coldest night fell to 18.8 °C, and the wettest single day dropped 38 mm — roughly 38% of the month's rain in one day.
September is moderately variable: 6 mm in the driest year against 190 mm in the wettest, around an average of 101 mm. Roughly two Septembers in three land near that average, and the third does something else entirely.
Wind is light at 13.4 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 80%, high enough to notice on the warm days without dominating them.
How September sits in the year
Temperatures hold steady either side: 28.7 °C in August, 29 here, 28.4 in October. Nothing about the timing within the month matters much. Rain is the thing that moves: October brings 6 days more of it, so the earlier half of a flexible trip is the safer half.
Daylight in September
Kandy sits close enough to the equator that daylight barely moves all year — 12.2 hours in September, against a range of just 0.8 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.
An inland climate
Despite being inland, the year stays fairly even: 12.8 °C between the year's warmest afternoons and coldest nights.
How busy it gets
Shoulder. The value months — prices ease off and you get the place closer to itself. September is the value pick for Kandy: it scores within 12 points of February without carrying February's prices.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
September in Kandy versus nearby
If Kandy is one option among several, the nearby comparison is worth making. Colombo is close enough to be a coin toss — within a degree on temperature, 5 days more rain. Trincomalee is close enough to be a coin toss — 3.3 °C warmer, 5 days less rain.
So: September works, with February the better month by 12 points if the dates can move. If they cannot, nothing here should stop you booking.
Every month in Kandy
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 26.3 | 18 | 12 | 116 | 87 | 11.7 | 69 |
| February | 28.1 | 18.3 | 10 | 89 | 83 | 11.9 | 72 |
| March | 30.6 | 19.5 | 13 | 96 | 77 | 12.1 | 59 |
| April | 30.8 | 21.6 | 21 | 155 | 78 | 12.3 | 48 |
| May | 29.1 | 22.3 | 18 | 133 | 83 | 12.4 | 53 |
| June | 28 | 22.1 | 16 | 73 | 84 | 12.5 | 65 |
| July | 28.1 | 21.7 | 13 | 62 | 82 | 12.5 | 71 |
| August | 28.7 | 21.6 | 15 | 70 | 81 | 12.4 | 66 |
| September | 29 | 21.4 | 17 | 101 | 80 | 12.2 | 60 |
| October | 28.4 | 21 | 23 | 228 | 83 | 12 | 56 |
| November | 26.7 | 20.1 | 24 | 279 | 89 | 11.8 | 57 |
| December | 25.9 | 19.2 | 20 | 243 | 90 | 11.7 | 65 |
See all twelve months in Kandy, or where else to go in September.
Planning the rest of the trip
- Flight time to Kandy how long you are actually in the air
- Kandy time zone and the difference from home
- Days until your trip count down to the departure date