| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 31.1° | — | — | — | 78 |
| February | 31.1° | — | 382.2mm | 12 | 60 |
| March | 31.9° | — | 96.7mm | 8 | 64 |
| April | 32.7° | 26.9° | 16.8mm | 3 | 71 |
| May | 33° | 26.8° | 5.5mm | 3 | 70 |
| June | 32.6° | 26.3° | 120.8mm | 6 | 66 |
| July | 32.3° | 25.8° | — | — | 73 |
| August | 32.6° | 26.2° | — | — | 72 |
| September | 32.6° | 26.1° | — | — | 72 |
| October | 32.9° | 27.4° | — | — | 70 |
| November | 32.6° | — | 14.2mm | 3 | 72 |
| December | 31.7° | 25.7° | — | — | 75 |
January in Rengasdengklok averages a daily high of 31.1°C. Comfortable conditions for being outdoors all day.
February in Rengasdengklok averages a daily high of 31.1°C. Expect roughly 12 wet days totalling 382.2mm. Generally workable, with some weather to plan around.
March in Rengasdengklok averages a daily high of 31.9°C. Expect roughly 8 wet days totalling 96.7mm. Generally workable, with some weather to plan around.
April in Rengasdengklok averages a daily high of 32.7°C with nights around 26.9°C. Expect roughly 3 wet days totalling 16.8mm. Generally workable, with some weather to plan around.
May in Rengasdengklok averages a daily high of 33°C with nights around 26.8°C. Expect roughly 3 wet days totalling 5.5mm. Generally workable, with some weather to plan around.
June in Rengasdengklok averages a daily high of 32.6°C with nights around 26.3°C. Expect roughly 6 wet days totalling 120.8mm. Generally workable, with some weather to plan around.
July in Rengasdengklok averages a daily high of 32.3°C with nights around 25.8°C. Generally workable, with some weather to plan around.
August in Rengasdengklok averages a daily high of 32.6°C with nights around 26.2°C. Generally workable, with some weather to plan around.
September in Rengasdengklok averages a daily high of 32.6°C with nights around 26.1°C. Generally workable, with some weather to plan around.
October in Rengasdengklok averages a daily high of 32.9°C with nights around 27.4°C. Generally workable, with some weather to plan around.
November in Rengasdengklok averages a daily high of 32.6°C. Expect roughly 3 wet days totalling 14.2mm. Generally workable, with some weather to plan around.
December in Rengasdengklok averages a daily high of 31.7°C with nights around 25.7°C. 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. Rengasdengklok peaks at 78.
Based on 30 years of records, July–January scores highest for comfort in Rengasdengklok, balancing daytime temperature against rainfall.
May is the warmest, averaging a daily high of 33°C.
February is the wettest, averaging 382.2mm of rain across roughly 12 wet days.
January is the coolest month, with average daily highs around 31.1°C.