| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 30.8° | 20.7° | 2.1mm | 0.9 | 83 |
| February | 31.6° | 21.3° | 18.2mm | 0.5 | 81 |
| March | 33.1° | 22.8° | 6.2mm | 1.6 | 72 |
| April | 34.5° | 24.1° | 32.4mm | 3.2 | 64 |
| May | 34.4° | 24.3° | 197.6mm | 11.8 | 47 |
| June | 33.3° | 24.4° | 287.4mm | 14.7 | 45 |
| July | 32° | 24° | 561.9mm | 21 | 50 |
| August | 31.3° | 24.2° | 556.4mm | 21.2 | 53 |
| September | 31.7° | 23.8° | 369mm | 18.4 | 51 |
| October | 32.1° | 23.9° | 250.7mm | 9.5 | 61 |
| November | 32.1° | 22.8° | 48.8mm | 6.7 | 66 |
| December | 31.2° | 21.9° | 14.5mm | 1.6 | 80 |
January in Rosales averages a daily high of 30.8°C with nights around 20.7°C. Rain is rare — about 0.9 wet days and 2.1mm across the month. Comfortable conditions for being outdoors all day.
February in Rosales averages a daily high of 31.6°C with nights around 21.3°C. Rain is rare — about 0.5 wet days and 18.2mm across the month. Comfortable conditions for being outdoors all day.
March in Rosales averages a daily high of 33.1°C with nights around 22.8°C. Rain is rare — about 1.6 wet days and 6.2mm across the month. Generally workable, with some weather to plan around.
April in Rosales averages a daily high of 34.5°C with nights around 24.1°C. Expect roughly 3.2 wet days totalling 32.4mm. Generally workable, with some weather to plan around.
May in Rosales averages a daily high of 34.4°C with nights around 24.3°C. Expect roughly 11.8 wet days totalling 197.6mm. Demanding conditions — pack for it and plan indoor options.
June in Rosales averages a daily high of 33.3°C with nights around 24.4°C. Expect roughly 14.7 wet days totalling 287.4mm. Demanding conditions — pack for it and plan indoor options.
July in Rosales averages a daily high of 32°C with nights around 24°C. Expect roughly 21 wet days totalling 561.9mm. Demanding conditions — pack for it and plan indoor options.
August in Rosales averages a daily high of 31.3°C with nights around 24.2°C. Expect roughly 21.2 wet days totalling 556.4mm. Demanding conditions — pack for it and plan indoor options.
September in Rosales averages a daily high of 31.7°C with nights around 23.8°C. Expect roughly 18.4 wet days totalling 369mm. Demanding conditions — pack for it and plan indoor options.
October in Rosales averages a daily high of 32.1°C with nights around 23.9°C. Expect roughly 9.5 wet days totalling 250.7mm. Generally workable, with some weather to plan around.
November in Rosales averages a daily high of 32.1°C with nights around 22.8°C. Expect roughly 6.7 wet days totalling 48.8mm. Generally workable, with some weather to plan around.
December in Rosales averages a daily high of 31.2°C with nights around 21.9°C. Rain is rare — about 1.6 wet days and 14.5mm across the month. 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. Rosales peaks at 83.
Based on 30 years of records, December–February scores highest for comfort in Rosales, balancing daytime temperature against rainfall.
April is the warmest, averaging a daily high of 34.5°C.
July is the wettest, averaging 561.9mm of rain across roughly 21 wet days.
January is the coolest month, with average daily highs around 30.8°C.