| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 31.5° | 23.8° | — | — | 76 |
| February | 31.4° | 23.8° | 162mm | 14 | 54 |
| March | 32° | 23.9° | — | — | 74 |
| April | 32.6° | 24.1° | — | — | 72 |
| May | 32.7° | 24.1° | — | — | 71 |
| June | 32.4° | 23.4° | — | — | 72 |
| July | 32.4° | 22.9° | — | — | 72 |
| August | 32.6° | 22.7° | — | — | 72 |
| September | 33.3° | 23° | — | — | 69 |
| October | 33.4° | 23.5° | — | — | 68 |
| November | 32.9° | 23.7° | — | — | 70 |
| December | 31.8° | 23.5° | — | — | 75 |
January in Serang averages a daily high of 31.5°C with nights around 23.8°C. Comfortable conditions for being outdoors all day.
February in Serang averages a daily high of 31.4°C with nights around 23.8°C. Expect roughly 14 wet days totalling 162mm. Demanding conditions — pack for it and plan indoor options.
March in Serang averages a daily high of 32°C with nights around 23.9°C. Generally workable, with some weather to plan around.
April in Serang averages a daily high of 32.6°C with nights around 24.1°C. Generally workable, with some weather to plan around.
May in Serang averages a daily high of 32.7°C with nights around 24.1°C. Generally workable, with some weather to plan around.
June in Serang averages a daily high of 32.4°C with nights around 23.4°C. Generally workable, with some weather to plan around.
July in Serang averages a daily high of 32.4°C with nights around 22.9°C. Generally workable, with some weather to plan around.
August in Serang averages a daily high of 32.6°C with nights around 22.7°C. Generally workable, with some weather to plan around.
September in Serang averages a daily high of 33.3°C with nights around 23°C. Generally workable, with some weather to plan around.
October in Serang averages a daily high of 33.4°C with nights around 23.5°C. Generally workable, with some weather to plan around.
November in Serang averages a daily high of 32.9°C with nights around 23.7°C. Generally workable, with some weather to plan around.
December in Serang averages a daily high of 31.8°C with nights around 23.5°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. Serang peaks at 76.
Based on 30 years of records, March–January scores highest for comfort in Serang, balancing daytime temperature against rainfall.
October is the warmest, averaging a daily high of 33.4°C.
February is the wettest, averaging 162mm of rain across roughly 14 wet days.
February is the coolest month, with average daily highs around 31.4°C.