| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 25.5° | 20.1° | 68.8mm | 8.5 | 83 |
| February | 25.5° | 20.2° | 114.1mm | 10.2 | 80 |
| March | 25° | 19.1° | 106.4mm | 10.3 | 79 |
| April | 23.3° | 15.9° | 116.6mm | 10.1 | 80 |
| May | 20.7° | 12.6° | 118mm | 9.8 | 80 |
| June | 18.2° | 10.6° | 129.2mm | 11 | 72 |
| July | 17.9° | 9.5° | 75mm | 9 | 75 |
| August | 19.1° | 10.3° | 52.3mm | 7.3 | 83 |
| September | 21.2° | 12.8° | 62.2mm | 8.1 | 84 |
| October | 22.5° | 15.1° | 68.2mm | 8.6 | 83 |
| November | 23.3° | 17° | 84.2mm | 10.1 | 80 |
| December | 24.8° | 18.8° | 53.6mm | 8.8 | 82 |
January in Newcastle averages a daily high of 25.5°C with nights around 20.1°C. Expect roughly 8.5 wet days totalling 68.8mm. Comfortable conditions for being outdoors all day.
February in Newcastle averages a daily high of 25.5°C with nights around 20.2°C. Expect roughly 10.2 wet days totalling 114.1mm. Comfortable conditions for being outdoors all day.
March in Newcastle averages a daily high of 25°C with nights around 19.1°C. Expect roughly 10.3 wet days totalling 106.4mm. Comfortable conditions for being outdoors all day.
April in Newcastle averages a daily high of 23.3°C with nights around 15.9°C. Expect roughly 10.1 wet days totalling 116.6mm. Comfortable conditions for being outdoors all day.
May in Newcastle averages a daily high of 20.7°C with nights around 12.6°C. Expect roughly 9.8 wet days totalling 118mm. Comfortable conditions for being outdoors all day.
June in Newcastle averages a daily high of 18.2°C with nights around 10.6°C. Expect roughly 11 wet days totalling 129.2mm. Generally workable, with some weather to plan around.
July in Newcastle averages a daily high of 17.9°C with nights around 9.5°C. Expect roughly 9 wet days totalling 75mm. Comfortable conditions for being outdoors all day.
August in Newcastle averages a daily high of 19.1°C with nights around 10.3°C. Expect roughly 7.3 wet days totalling 52.3mm. Comfortable conditions for being outdoors all day.
September in Newcastle averages a daily high of 21.2°C with nights around 12.8°C. Expect roughly 8.1 wet days totalling 62.2mm. Comfortable conditions for being outdoors all day.
October in Newcastle averages a daily high of 22.5°C with nights around 15.1°C. Expect roughly 8.6 wet days totalling 68.2mm. Comfortable conditions for being outdoors all day.
November in Newcastle averages a daily high of 23.3°C with nights around 17°C. Expect roughly 10.1 wet days totalling 84.2mm. Comfortable conditions for being outdoors all day.
December in Newcastle averages a daily high of 24.8°C with nights around 18.8°C. Expect roughly 8.8 wet days totalling 53.6mm. Comfortable conditions for being outdoors all day.
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. Newcastle peaks at 84.
Based on 30 years of records, August–May scores highest for comfort in Newcastle, balancing daytime temperature against rainfall.
January is the warmest, averaging a daily high of 25.5°C.
June is the wettest, averaging 129.2mm of rain across roughly 11 wet days.
July is the coolest month, with average daily highs around 17.9°C.