| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 17.5° | — | 46.6mm | 7 | 78 |
| February | 19.3° | — | 29.7mm | 7.4 | 83 |
| March | 22° | — | 60.5mm | 10.6 | 79 |
| April | 26.7° | — | 82.8mm | 10.1 | 80 |
| May | 29.8° | — | 145.6mm | 11.6 | 66 |
| June | 31.7° | — | 173.8mm | 14.2 | 53 |
| July | 32° | 23.7° | 211.2mm | 15.1 | 50 |
| August | 31.5° | — | 243.1mm | 16.7 | 52 |
| September | 30.1° | — | 153.4mm | 10.8 | 66 |
| October | 27.9° | — | 71.6mm | 7 | 82 |
| November | 24.3° | — | 36.7mm | 4.9 | 90 |
| December | 19.3° | — | 23.8mm | 5 | 88 |
January in Chũ averages a daily high of 17.5°C. Expect roughly 7 wet days totalling 46.6mm. Comfortable conditions for being outdoors all day.
February in Chũ averages a daily high of 19.3°C. Expect roughly 7.4 wet days totalling 29.7mm. Comfortable conditions for being outdoors all day.
March in Chũ averages a daily high of 22°C. Expect roughly 10.6 wet days totalling 60.5mm. Comfortable conditions for being outdoors all day.
April in Chũ averages a daily high of 26.7°C. Expect roughly 10.1 wet days totalling 82.8mm. Comfortable conditions for being outdoors all day.
May in Chũ averages a daily high of 29.8°C. Expect roughly 11.6 wet days totalling 145.6mm. Generally workable, with some weather to plan around.
June in Chũ averages a daily high of 31.7°C. Expect roughly 14.2 wet days totalling 173.8mm. Demanding conditions — pack for it and plan indoor options.
July in Chũ averages a daily high of 32°C with nights around 23.7°C. Expect roughly 15.1 wet days totalling 211.2mm. Demanding conditions — pack for it and plan indoor options.
August in Chũ averages a daily high of 31.5°C. Expect roughly 16.7 wet days totalling 243.1mm. Demanding conditions — pack for it and plan indoor options.
September in Chũ averages a daily high of 30.1°C. Expect roughly 10.8 wet days totalling 153.4mm. Generally workable, with some weather to plan around.
October in Chũ averages a daily high of 27.9°C. Expect roughly 7 wet days totalling 71.6mm. Comfortable conditions for being outdoors all day.
November in Chũ averages a daily high of 24.3°C. Expect roughly 4.9 wet days totalling 36.7mm. Comfortable conditions for being outdoors all day.
December in Chũ averages a daily high of 19.3°C. Expect roughly 5 wet days totalling 23.8mm. 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. Chũ peaks at 90.
Based on 30 years of records, October–December scores highest for comfort in Chũ, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 32°C.
August is the wettest, averaging 243.1mm of rain across roughly 16.7 wet days.
January is the coolest month, with average daily highs around 17.5°C.