| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 33.1° | 15.4° | 5.7mm | 1.5 | 73 |
| February | 33.5° | 15.4° | 12mm | 1.9 | 70 |
| March | 31.3° | 13.8° | 9mm | 2.2 | 78 |
| April | 28.3° | 11.1° | 15.1mm | 3.3 | 88 |
| May | 24.2° | 9.1° | 43.7mm | 7 | 86 |
| June | 20.8° | 7° | 91.1mm | 10.6 | 79 |
| July | 20° | 5.8° | 76.4mm | 11.4 | 77 |
| August | 20.5° | 6.2° | 75.8mm | 7.7 | 85 |
| September | 22.4° | 7.3° | 37.4mm | 6.7 | 87 |
| October | 27.3° | 9.9° | 25.8mm | 3.7 | 91 |
| November | 28.8° | 11.9° | 12.4mm | 3.2 | 86 |
| December | 31.2° | 14° | 34.8mm | 4.5 | 74 |
January in Wellington averages a daily high of 33.1°C with nights around 15.4°C. Rain is rare — about 1.5 wet days and 5.7mm across the month. Generally workable, with some weather to plan around.
February in Wellington averages a daily high of 33.5°C with nights around 15.4°C. Rain is rare — about 1.9 wet days and 12mm across the month. Generally workable, with some weather to plan around.
March in Wellington averages a daily high of 31.3°C with nights around 13.8°C. Rain is rare — about 2.2 wet days and 9mm across the month. Comfortable conditions for being outdoors all day.
April in Wellington averages a daily high of 28.3°C with nights around 11.1°C. Expect roughly 3.3 wet days totalling 15.1mm. Comfortable conditions for being outdoors all day.
May in Wellington averages a daily high of 24.2°C with nights around 9.1°C. Expect roughly 7 wet days totalling 43.7mm. Comfortable conditions for being outdoors all day.
June in Wellington averages a daily high of 20.8°C with nights around 7°C. Expect roughly 10.6 wet days totalling 91.1mm. Comfortable conditions for being outdoors all day.
July in Wellington averages a daily high of 20°C with nights around 5.8°C. Expect roughly 11.4 wet days totalling 76.4mm. Comfortable conditions for being outdoors all day.
August in Wellington averages a daily high of 20.5°C with nights around 6.2°C. Expect roughly 7.7 wet days totalling 75.8mm. Comfortable conditions for being outdoors all day.
September in Wellington averages a daily high of 22.4°C with nights around 7.3°C. Expect roughly 6.7 wet days totalling 37.4mm. Comfortable conditions for being outdoors all day.
October in Wellington averages a daily high of 27.3°C with nights around 9.9°C. Expect roughly 3.7 wet days totalling 25.8mm. Comfortable conditions for being outdoors all day.
November in Wellington averages a daily high of 28.8°C with nights around 11.9°C. Expect roughly 3.2 wet days totalling 12.4mm. Comfortable conditions for being outdoors all day.
December in Wellington averages a daily high of 31.2°C with nights around 14°C. Expect roughly 4.5 wet days totalling 34.8mm. Generally workable, with some weather to plan around.
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. Wellington peaks at 91.
Based on 30 years of records, August–November scores highest for comfort in Wellington, balancing daytime temperature against rainfall.
February is the warmest, averaging a daily high of 33.5°C.
June is the wettest, averaging 91.1mm of rain across roughly 10.6 wet days.
July is the coolest month, with average daily highs around 20°C.