| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -2.2° | -11.1° | 50.4mm | 11.8 | 6 |
| February | -1° | -11.4° | 51.7mm | 9.9 | 10 |
| March | 4.9° | -6.1° | 41.5mm | 8.4 | 23 |
| April | 12.4° | 0.3° | 73.1mm | 11.9 | 49 |
| May | 20.3° | 6.2° | 67.2mm | 10.8 | 78 |
| June | 24.5° | 11.7° | 90.2mm | 11.7 | 77 |
| July | 26.9° | 14° | 95.9mm | 10.8 | 78 |
| August | 26° | 13.2° | 77.3mm | 10.1 | 80 |
| September | 22.1° | 9.8° | 75.9mm | 10.3 | 79 |
| October | 14.6° | 4.6° | 88.3mm | 16.4 | 53 |
| November | 7.4° | -1.4° | 60.3mm | 12.7 | 29 |
| December | 0.8° | -6.2° | 54.9mm | 11.9 | 9 |
January in Newmarket averages a daily high of -2.2°C with nights around -11.1°C. Expect roughly 11.8 wet days totalling 50.4mm. A hard month to visit for comfort alone.
February in Newmarket averages a daily high of -1°C with nights around -11.4°C. Expect roughly 9.9 wet days totalling 51.7mm. A hard month to visit for comfort alone.
March in Newmarket averages a daily high of 4.9°C with nights around -6.1°C. Expect roughly 8.4 wet days totalling 41.5mm. A hard month to visit for comfort alone.
April in Newmarket averages a daily high of 12.4°C with nights around 0.3°C. Expect roughly 11.9 wet days totalling 73.1mm. Demanding conditions — pack for it and plan indoor options.
May in Newmarket averages a daily high of 20.3°C with nights around 6.2°C. Expect roughly 10.8 wet days totalling 67.2mm. Comfortable conditions for being outdoors all day.
June in Newmarket averages a daily high of 24.5°C with nights around 11.7°C. Expect roughly 11.7 wet days totalling 90.2mm. Comfortable conditions for being outdoors all day.
July in Newmarket averages a daily high of 26.9°C with nights around 14°C. Expect roughly 10.8 wet days totalling 95.9mm. Comfortable conditions for being outdoors all day.
August in Newmarket averages a daily high of 26°C with nights around 13.2°C. Expect roughly 10.1 wet days totalling 77.3mm. Comfortable conditions for being outdoors all day.
September in Newmarket averages a daily high of 22.1°C with nights around 9.8°C. Expect roughly 10.3 wet days totalling 75.9mm. Comfortable conditions for being outdoors all day.
October in Newmarket averages a daily high of 14.6°C with nights around 4.6°C. Expect roughly 16.4 wet days totalling 88.3mm. Demanding conditions — pack for it and plan indoor options.
November in Newmarket averages a daily high of 7.4°C with nights around -1.4°C. Expect roughly 12.7 wet days totalling 60.3mm. A hard month to visit for comfort alone.
December in Newmarket averages a daily high of 0.8°C with nights around -6.2°C. Expect roughly 11.9 wet days totalling 54.9mm. 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. Newmarket peaks at 80.
Based on 30 years of records, May–September scores highest for comfort in Newmarket, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 26.9°C.
July is the wettest, averaging 95.9mm of rain across roughly 10.8 wet days.
January is the coolest month, with average daily highs around -2.2°C.