| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 4.7° | -1.8° | 86mm | 10.7 | 24 |
| February | 6.1° | -1.1° | 75.2mm | 10.3 | 30 |
| March | 10.3° | 2.4° | 100.3mm | 10.7 | 48 |
| April | 16.2° | 7.6° | 104.8mm | 11.1 | 66 |
| May | 21.8° | 13° | 91.1mm | 11.8 | 76 |
| June | 27.1° | 18.5° | 100.5mm | 10.8 | 78 |
| July | 30.1° | 22° | 114.6mm | 10 | 68 |
| August | 29.1° | 21.6° | 113.9mm | 9.5 | 73 |
| September | 25.2° | 18° | 110.3mm | 8.1 | 84 |
| October | 19° | 11.9° | 101.4mm | 9.1 | 79 |
| November | 12.7° | 6.1° | 78.2mm | 8.8 | 59 |
| December | 7.5° | 1.5° | 104.9mm | 11.6 | 36 |
January in Corona averages a daily high of 4.7°C with nights around -1.8°C. Expect roughly 10.7 wet days totalling 86mm. A hard month to visit for comfort alone.
February in Corona averages a daily high of 6.1°C with nights around -1.1°C. Expect roughly 10.3 wet days totalling 75.2mm. A hard month to visit for comfort alone.
March in Corona averages a daily high of 10.3°C with nights around 2.4°C. Expect roughly 10.7 wet days totalling 100.3mm. Demanding conditions — pack for it and plan indoor options.
April in Corona averages a daily high of 16.2°C with nights around 7.6°C. Expect roughly 11.1 wet days totalling 104.8mm. Generally workable, with some weather to plan around.
May in Corona averages a daily high of 21.8°C with nights around 13°C. Expect roughly 11.8 wet days totalling 91.1mm. Comfortable conditions for being outdoors all day.
June in Corona averages a daily high of 27.1°C with nights around 18.5°C. Expect roughly 10.8 wet days totalling 100.5mm. Comfortable conditions for being outdoors all day.
July in Corona averages a daily high of 30.1°C with nights around 22°C. Expect roughly 10 wet days totalling 114.6mm. Generally workable, with some weather to plan around.
August in Corona averages a daily high of 29.1°C with nights around 21.6°C. Expect roughly 9.5 wet days totalling 113.9mm. Generally workable, with some weather to plan around.
September in Corona averages a daily high of 25.2°C with nights around 18°C. Expect roughly 8.1 wet days totalling 110.3mm. Comfortable conditions for being outdoors all day.
October in Corona averages a daily high of 19°C with nights around 11.9°C. Expect roughly 9.1 wet days totalling 101.4mm. Comfortable conditions for being outdoors all day.
November in Corona averages a daily high of 12.7°C with nights around 6.1°C. Expect roughly 8.8 wet days totalling 78.2mm. Generally workable, with some weather to plan around.
December in Corona averages a daily high of 7.5°C with nights around 1.5°C. Expect roughly 11.6 wet days totalling 104.9mm. Demanding conditions — pack for it and plan indoor options.
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. Corona peaks at 84.
Based on 30 years of records, May–June scores highest for comfort in Corona, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 30.1°C.
July is the wettest, averaging 114.6mm of rain across roughly 10 wet days.
January is the coolest month, with average daily highs around 4.7°C.