| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 31.9° | 23.5° | 110.6mm | 10.9 | 59 |
| February | 32.8° | 23.9° | 82.2mm | 8.2 | 60 |
| March | 33.3° | 25.1° | 126.2mm | 12.7 | 49 |
| April | 32.9° | 24° | 162.4mm | 14.4 | 48 |
| May | 32.8° | 24.3° | 155mm | 14.2 | 48 |
| June | 32.2° | 24.1° | 182.9mm | 12.7 | 54 |
| July | 31.7° | — | 182.9mm | 14.1 | 53 |
| August | 31.6° | 23.4° | 218.9mm | 15.1 | 52 |
| September | 31.9° | 23.7° | 171.2mm | 15 | 50 |
| October | 32.1° | — | 195.8mm | 14.8 | 50 |
| November | 31.8° | 23.7° | 251mm | 19.5 | 51 |
| December | 31.4° | 24° | 181mm | 16 | 52 |
January in Muar averages a daily high of 31.9°C with nights around 23.5°C. Expect roughly 10.9 wet days totalling 110.6mm. Generally workable, with some weather to plan around.
February in Muar averages a daily high of 32.8°C with nights around 23.9°C. Expect roughly 8.2 wet days totalling 82.2mm. Generally workable, with some weather to plan around.
March in Muar averages a daily high of 33.3°C with nights around 25.1°C. Expect roughly 12.7 wet days totalling 126.2mm. Demanding conditions — pack for it and plan indoor options.
April in Muar averages a daily high of 32.9°C with nights around 24°C. Expect roughly 14.4 wet days totalling 162.4mm. Demanding conditions — pack for it and plan indoor options.
May in Muar averages a daily high of 32.8°C with nights around 24.3°C. Expect roughly 14.2 wet days totalling 155mm. Demanding conditions — pack for it and plan indoor options.
June in Muar averages a daily high of 32.2°C with nights around 24.1°C. Expect roughly 12.7 wet days totalling 182.9mm. Demanding conditions — pack for it and plan indoor options.
July in Muar averages a daily high of 31.7°C. Expect roughly 14.1 wet days totalling 182.9mm. Demanding conditions — pack for it and plan indoor options.
August in Muar averages a daily high of 31.6°C with nights around 23.4°C. Expect roughly 15.1 wet days totalling 218.9mm. Demanding conditions — pack for it and plan indoor options.
September in Muar averages a daily high of 31.9°C with nights around 23.7°C. Expect roughly 15 wet days totalling 171.2mm. Demanding conditions — pack for it and plan indoor options.
October in Muar averages a daily high of 32.1°C. Expect roughly 14.8 wet days totalling 195.8mm. Demanding conditions — pack for it and plan indoor options.
November in Muar averages a daily high of 31.8°C with nights around 23.7°C. Expect roughly 19.5 wet days totalling 251mm. Demanding conditions — pack for it and plan indoor options.
December in Muar averages a daily high of 31.4°C with nights around 24°C. Expect roughly 16 wet days totalling 181mm. 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. Muar peaks at 60.
Based on 30 years of records, June–August scores highest for comfort in Muar, balancing daytime temperature against rainfall.
March is the warmest, averaging a daily high of 33.3°C.
November is the wettest, averaging 251mm of rain across roughly 19.5 wet days.
December is the coolest month, with average daily highs around 31.4°C.