| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 10.3° | -0.9° | 23.1mm | 6 | 53 |
| February | 13° | -0.4° | 32.5mm | 6 | 62 |
| March | 19.4° | 6.5° | 29.6mm | 7.8 | 82 |
| April | 26° | 12.9° | 21.5mm | 4.6 | 91 |
| May | 32.3° | 17.5° | 9.6mm | 1.9 | 75 |
| June | 37.3° | 22° | 0.8mm | 0.9 | 57 |
| July | 38.9° | 23.9° | 0mm | 0.1 | 52 |
| August | 37.3° | 21.2° | 0.1mm | 0.1 | 59 |
| September | 32.2° | 15.5° | 0.8mm | 0.4 | 78 |
| October | 25.2° | 9.4° | 2.7mm | 1.3 | 97 |
| November | 17.2° | 3.7° | 11.6mm | 2.2 | 87 |
| December | 11.4° | 1.5° | 9mm | 3.8 | 64 |
January in Mary averages a daily high of 10.3°C with nights around -0.9°C. Expect roughly 6 wet days totalling 23.1mm. Demanding conditions — pack for it and plan indoor options.
February in Mary averages a daily high of 13°C with nights around -0.4°C. Expect roughly 6 wet days totalling 32.5mm. Generally workable, with some weather to plan around.
March in Mary averages a daily high of 19.4°C with nights around 6.5°C. Expect roughly 7.8 wet days totalling 29.6mm. Comfortable conditions for being outdoors all day.
April in Mary averages a daily high of 26°C with nights around 12.9°C. Expect roughly 4.6 wet days totalling 21.5mm. Comfortable conditions for being outdoors all day.
May in Mary averages a daily high of 32.3°C with nights around 17.5°C. Rain is rare — about 1.9 wet days and 9.6mm across the month. Comfortable conditions for being outdoors all day.
June in Mary averages a daily high of 37.3°C with nights around 22°C. Rain is rare — about 0.9 wet days and 0.8mm across the month. Generally workable, with some weather to plan around.
July in Mary averages a daily high of 38.9°C with nights around 23.9°C. Rain is rare — about 0.1 wet days and 0mm across the month. Demanding conditions — pack for it and plan indoor options.
August in Mary averages a daily high of 37.3°C with nights around 21.2°C. Rain is rare — about 0.1 wet days and 0.1mm across the month. Generally workable, with some weather to plan around.
September in Mary averages a daily high of 32.2°C with nights around 15.5°C. Rain is rare — about 0.4 wet days and 0.8mm across the month. Comfortable conditions for being outdoors all day.
October in Mary averages a daily high of 25.2°C with nights around 9.4°C. Rain is rare — about 1.3 wet days and 2.7mm across the month. Comfortable conditions for being outdoors all day.
November in Mary averages a daily high of 17.2°C with nights around 3.7°C. Rain is rare — about 2.2 wet days and 11.6mm across the month. Comfortable conditions for being outdoors all day.
December in Mary averages a daily high of 11.4°C with nights around 1.5°C. Expect roughly 3.8 wet days totalling 9mm. 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. Mary peaks at 97.
Based on 30 years of records, April scores highest for comfort in Mary, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 38.9°C.
February is the wettest, averaging 32.5mm of rain across roughly 6 wet days.
January is the coolest month, with average daily highs around 10.3°C.