| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 7.7° | 2.4° | 51.4mm | 14.8 | 31 |
| February | 8.6° | 2.9° | 44.9mm | 13.5 | 37 |
| March | 10.5° | 3.9° | 38.6mm | 12.1 | 45 |
| April | 13.3° | 5.8° | 36.3mm | 10 | 59 |
| May | 16.5° | 8.7° | 49mm | 10.9 | 67 |
| June | 19.8° | 11.6° | 41.7mm | 9.3 | 81 |
| July | 22.1° | 13.7° | 46.5mm | 10.2 | 80 |
| August | 22.3° | 14.1° | 49.7mm | 10.1 | 80 |
| September | 19.4° | 12.2° | 44mm | 10 | 78 |
| October | 15.5° | 9.5° | 74.2mm | 14.7 | 56 |
| November | 11.1° | 5.6° | 69.8mm | 15.3 | 42 |
| December | 8.6° | 3.2° | 62.8mm | 16 | 34 |
January in Canterbury averages a daily high of 7.7°C with nights around 2.4°C. Expect roughly 14.8 wet days totalling 51.4mm. A hard month to visit for comfort alone.
February in Canterbury averages a daily high of 8.6°C with nights around 2.9°C. Expect roughly 13.5 wet days totalling 44.9mm. Demanding conditions — pack for it and plan indoor options.
March in Canterbury averages a daily high of 10.5°C with nights around 3.9°C. Expect roughly 12.1 wet days totalling 38.6mm. Demanding conditions — pack for it and plan indoor options.
April in Canterbury averages a daily high of 13.3°C with nights around 5.8°C. Expect roughly 10 wet days totalling 36.3mm. Generally workable, with some weather to plan around.
May in Canterbury averages a daily high of 16.5°C with nights around 8.7°C. Expect roughly 10.9 wet days totalling 49mm. Generally workable, with some weather to plan around.
June in Canterbury averages a daily high of 19.8°C with nights around 11.6°C. Expect roughly 9.3 wet days totalling 41.7mm. Comfortable conditions for being outdoors all day.
July in Canterbury averages a daily high of 22.1°C with nights around 13.7°C. Expect roughly 10.2 wet days totalling 46.5mm. Comfortable conditions for being outdoors all day.
August in Canterbury averages a daily high of 22.3°C with nights around 14.1°C. Expect roughly 10.1 wet days totalling 49.7mm. Comfortable conditions for being outdoors all day.
September in Canterbury averages a daily high of 19.4°C with nights around 12.2°C. Expect roughly 10 wet days totalling 44mm. Comfortable conditions for being outdoors all day.
October in Canterbury averages a daily high of 15.5°C with nights around 9.5°C. Expect roughly 14.7 wet days totalling 74.2mm. Generally workable, with some weather to plan around.
November in Canterbury averages a daily high of 11.1°C with nights around 5.6°C. Expect roughly 15.3 wet days totalling 69.8mm. Demanding conditions — pack for it and plan indoor options.
December in Canterbury averages a daily high of 8.6°C with nights around 3.2°C. Expect roughly 16 wet days totalling 62.8mm. A hard month to visit for comfort alone.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Canterbury peaks at 81.
Based on 30 years of records, June–September scores highest for comfort in Canterbury, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 22.3°C.
October is the wettest, averaging 74.2mm of rain across roughly 14.7 wet days.
January is the coolest month, with average daily highs around 7.7°C.