| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 32.4° | 21.6° | 187.4mm | 14 | 50 |
| February | 31.6° | 21.4° | 155.1mm | 11.4 | 59 |
| March | 31.5° | 21.7° | 51.8mm | 8.5 | 65 |
| April | 30.5° | 19.2° | 65.3mm | 8 | 70 |
| May | 27.4° | 17.1° | 43.9mm | 8 | 82 |
| June | 26.5° | 15.9° | 56.2mm | 8.7 | 83 |
| July | 27.5° | 15.6° | 10.7mm | 2.8 | 92 |
| August | 30.1° | 17° | 25.2mm | 4.6 | 78 |
| September | 32.4° | 18.1° | 32mm | 3 | 72 |
| October | 32.6° | 20° | 130.3mm | 7.3 | 63 |
| November | 33.3° | 21.3° | 47.7mm | 6.8 | 61 |
| December | 32.6° | 21.5° | 161.6mm | 13.7 | 50 |
January in Montero averages a daily high of 32.4°C with nights around 21.6°C. Expect roughly 14 wet days totalling 187.4mm. Demanding conditions — pack for it and plan indoor options.
February in Montero averages a daily high of 31.6°C with nights around 21.4°C. Expect roughly 11.4 wet days totalling 155.1mm. Generally workable, with some weather to plan around.
March in Montero averages a daily high of 31.5°C with nights around 21.7°C. Expect roughly 8.5 wet days totalling 51.8mm. Generally workable, with some weather to plan around.
April in Montero averages a daily high of 30.5°C with nights around 19.2°C. Expect roughly 8 wet days totalling 65.3mm. Generally workable, with some weather to plan around.
May in Montero averages a daily high of 27.4°C with nights around 17.1°C. Expect roughly 8 wet days totalling 43.9mm. Comfortable conditions for being outdoors all day.
June in Montero averages a daily high of 26.5°C with nights around 15.9°C. Expect roughly 8.7 wet days totalling 56.2mm. Comfortable conditions for being outdoors all day.
July in Montero averages a daily high of 27.5°C with nights around 15.6°C. Rain is rare — about 2.8 wet days and 10.7mm across the month. Comfortable conditions for being outdoors all day.
August in Montero averages a daily high of 30.1°C with nights around 17°C. Expect roughly 4.6 wet days totalling 25.2mm. Comfortable conditions for being outdoors all day.
September in Montero averages a daily high of 32.4°C with nights around 18.1°C. Expect roughly 3 wet days totalling 32mm. Generally workable, with some weather to plan around.
October in Montero averages a daily high of 32.6°C with nights around 20°C. Expect roughly 7.3 wet days totalling 130.3mm. Generally workable, with some weather to plan around.
November in Montero averages a daily high of 33.3°C with nights around 21.3°C. Expect roughly 6.8 wet days totalling 47.7mm. Generally workable, with some weather to plan around.
December in Montero averages a daily high of 32.6°C with nights around 21.5°C. Expect roughly 13.7 wet days totalling 161.6mm. 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. Montero peaks at 92.
Based on 30 years of records, July scores highest for comfort in Montero, balancing daytime temperature against rainfall.
November is the warmest, averaging a daily high of 33.3°C.
January is the wettest, averaging 187.4mm of rain across roughly 14 wet days.
June is the coolest month, with average daily highs around 26.5°C.