| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 4.3° | -3.2° | 94.2mm | 11 | 20 |
| February | 6° | -2.5° | 84.2mm | 9.7 | 29 |
| March | 10.4° | 0.9° | 107mm | 10.5 | 47 |
| April | 17° | 6.5° | 110.7mm | 10.8 | 69 |
| May | 22.5° | 12° | 116.7mm | 11.9 | 76 |
| June | 27.7° | 17.6° | 108.4mm | 10.3 | 77 |
| July | 30.9° | 21.1° | 121.3mm | 9.2 | 66 |
| August | 29.8° | 20.2° | 127.8mm | 10.2 | 68 |
| September | 25.8° | 16.1° | 117.8mm | 8.4 | 83 |
| October | 19° | 9.5° | 115.3mm | 9.2 | 78 |
| November | 12.7° | 3.8° | 86.3mm | 8.4 | 60 |
| December | 7.2° | -0.3° | 120.2mm | 10.9 | 34 |
January in Irvington averages a daily high of 4.3°C with nights around -3.2°C. Expect roughly 11 wet days totalling 94.2mm. A hard month to visit for comfort alone.
February in Irvington averages a daily high of 6°C with nights around -2.5°C. Expect roughly 9.7 wet days totalling 84.2mm. A hard month to visit for comfort alone.
March in Irvington averages a daily high of 10.4°C with nights around 0.9°C. Expect roughly 10.5 wet days totalling 107mm. Demanding conditions — pack for it and plan indoor options.
April in Irvington averages a daily high of 17°C with nights around 6.5°C. Expect roughly 10.8 wet days totalling 110.7mm. Generally workable, with some weather to plan around.
May in Irvington averages a daily high of 22.5°C with nights around 12°C. Expect roughly 11.9 wet days totalling 116.7mm. Comfortable conditions for being outdoors all day.
June in Irvington averages a daily high of 27.7°C with nights around 17.6°C. Expect roughly 10.3 wet days totalling 108.4mm. Comfortable conditions for being outdoors all day.
July in Irvington averages a daily high of 30.9°C with nights around 21.1°C. Expect roughly 9.2 wet days totalling 121.3mm. Generally workable, with some weather to plan around.
August in Irvington averages a daily high of 29.8°C with nights around 20.2°C. Expect roughly 10.2 wet days totalling 127.8mm. Generally workable, with some weather to plan around.
September in Irvington averages a daily high of 25.8°C with nights around 16.1°C. Expect roughly 8.4 wet days totalling 117.8mm. Comfortable conditions for being outdoors all day.
October in Irvington averages a daily high of 19°C with nights around 9.5°C. Expect roughly 9.2 wet days totalling 115.3mm. Comfortable conditions for being outdoors all day.
November in Irvington averages a daily high of 12.7°C with nights around 3.8°C. Expect roughly 8.4 wet days totalling 86.3mm. Generally workable, with some weather to plan around.
December in Irvington averages a daily high of 7.2°C with nights around -0.3°C. Expect roughly 10.9 wet days totalling 120.2mm. 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. Irvington peaks at 83.
Based on 30 years of records, May–June scores highest for comfort in Irvington, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 30.9°C.
August is the wettest, averaging 127.8mm of rain across roughly 10.2 wet days.
January is the coolest month, with average daily highs around 4.3°C.