| Date | Colombo Consumer Price Index (CCPI) (CCPI, 2021=100) | National Consumer Price Index (NCPI) (NCPI, 2021=100) | ||
| Headline Inflation (Y-o-Y) | Core Inflation (Y-o-Y) | Headline Inflation (Y-o-Y) | Core Inflation (Y-o-Y) | |
| 2026 | ||||
| January | 2.30 | 2.30 | - | - |
| 2025 | ||||
| January | -4.00 | 1.20 | -4.00 | -0.20 |
| February | -4.20 | 0.70 | -3.90 | -0.60 |
| March | -2.60 | 0.70 | -1.90 | -0.60 |
| April | -2.00 | 0.80 | -0.80 | -0.10 |
| May | -0.70 | 1.20 | 0.60 | 0.30 |
| June | -0.60 | 1.50 | 0.30 | 0.60 |
| July | -0.30 | 1.60 | 0.70 | 0.90 |
| August | 1.20 | 2.00 | 1.50 | 1.50 |
| September | 1.50 | 2.00 | 2.10 | 1.90 |
| October | 2.10 | 2.20 | 2.70 | 2.10 |
| November | 2.10 | 2.40 | 2.40 | 2.20 |
| December | 2.10 | 2.70 | 2.90 | 2.60 |
| 2024 | ||||
| January | 6.40 | 2.20 | 6.50 | 2.20 |
| February | 5.90 | 2.80 | 5.10 | 2.70 |
| March | 0.90 | 3.10 | 2.50 | 3.40 |
| April | 1.50 | 3.40 | 2.70 | 3.00 |
| May | 0.90 | 3.50 | 1.60 | 3.10 |
| June | 1.70 | 4.40 | 2.40 | 3.90 |
| July | 2.40 | 4.40 | 2.50 | 3.00 |
| August | 0.50 | 3.60 | 1.10 | 2.30 |
| September | -0.50 | 3.30 | -0.20 | 1.90 |
| October | -0.80 | 3.00 | -0.70 | 1.70 |
| November | -2.10 | 2.70 | -1.70 | 1.50 |
| December | -1.70 | 2.70 | -2.00 | 1.30 |
| Date | Colombo Consumer Price Index (CCPI) (CCPI, 2013=100) | National Consumer Price Index (NCPI) (NCPI, 2013=100) | ||
| Headline Inflation (Y-o-Y) | Core Inflation (Y-o-Y) | Headline Inflation (Y-o-Y) | Core Inflation (Y-o-Y) | |
| 2022 | ||||
| January | 14.20 | 9.90 | 16.80 | 12.90 |
| February | 15.10 | 10.90 | 17.50 | 14.10 |
| March | 18.70 | 13.00 | 21.50 | 17.30 |
| April | 29.80 | 22.00 | 33.80 | 27.90 |
| May | 39.10 | 28.40 | 45.30 | 37.70 |
| June | 54.60 | 39.90 | 58.90 | 49.30 |
| July | 60.80 | 44.30 | 66.70 | 57.30 |
| August | 64.30 | 46.60 | 70.20 | 60.50 |
| September | 69.80 | 50.20 | 73.70 | 64.10 |
| October | 66.00 | 49.70 | 70.60 | 62.40 |
| November | 61.00 | 49.40 | 65.00 | 60.10 |
| December | 57.20 | 47.70 | 59.20 | 57.50 |
| 2021 | ||||
| January | 3.00 | 2.70 | 3.70 | 4.20 |
| February | 3.30 | 2.60 | 4.20 | 4.10 |
| March | 4.10 | 3.10 | 5.10 | 4.30 |
| April | 3.90 | 3.00 | 5.50 | 4.10 |
| May | 4.50 | 3.20 | 6.10 | 4.20 |
| June | 5.20 | 3.20 | 6.10 | 4.10 |
| July | 5.70 | 3.70 | 6.80 | 4.40 |
| August | 6.00 | 4.10 | 6.70 | 4.70 |
| September | 5.70 | 5.00 | 6.20 | 4.80 |
| October | 7.60 | 6.30 | 8.30 | 7.20 |
| November | 9.90 | 7.00 | 11.10 | 8.80 |
| December | 12.10 | 8.30 | 14.00 | 10.80 |
| 2020 | ||||
| January | 5.70 | 3.00 | 7.60 | 3.90 |
| February | 6.20 | 3.20 | 8.10 | 3.40 |
| March | 5.40 | 2.90 | 7.00 | 3.20 |
| April | 5.20 | 3.10 | 5.90 | 3.20 |
| May | 4.00 | 2.90 | 5.20 | 3.70 |
| June | 3.90 | 3.10 | 6.30 | 4.40 |
| July | 4.20 | 3.20 | 6.10 | 4.50 |
| August | 4.10 | 3.20 | 6.20 | 4.60 |
| September | 4.00 | 2.90 | 6.40 | 4.80 |
| October | 4.00 | 3.00 | 5.50 | 4.50 |
| November | 4.10 | 3.00 | 5.20 | 4.50 |
| December | 4.20 | 3.50 | 4.60 | 4.70 |