| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 30.6° | 24.4° | 9.1mm | 3 | 80 |
| February | 31.1° | 24.5° | 13mm | 2.8 | 78 |
| March | 31.7° | 24.3° | 23.7mm | 4.5 | 72 |
| April | 32.1° | 25.1° | 60.3mm | 3.5 | 73 |
| May | 32° | 25.1° | 73.2mm | 4.3 | 71 |
| June | 31.9° | 24.7° | 83.2mm | 5.7 | 69 |
| July | 31.8° | 24.8° | 116.3mm | 5.5 | 70 |
| August | 31.5° | 24.4° | — | — | 76 |
| September | 31.1° | 24.3° | — | — | 78 |
| October | 30.9° | 24.4° | 213mm | 10 | 64 |
| November | 30.5° | 24.5° | 35mm | 6 | 74 |
| December | 30.3° | 24.1° | — | — | 81 |
January in Belawan averages a daily high of 30.6°C with nights around 24.4°C. Expect roughly 3 wet days totalling 9.1mm. Comfortable conditions for being outdoors all day.
February in Belawan averages a daily high of 31.1°C with nights around 24.5°C. Rain is rare — about 2.8 wet days and 13mm across the month. Comfortable conditions for being outdoors all day.
March in Belawan averages a daily high of 31.7°C with nights around 24.3°C. Expect roughly 4.5 wet days totalling 23.7mm. Generally workable, with some weather to plan around.
April in Belawan averages a daily high of 32.1°C with nights around 25.1°C. Expect roughly 3.5 wet days totalling 60.3mm. Generally workable, with some weather to plan around.
May in Belawan averages a daily high of 32°C with nights around 25.1°C. Expect roughly 4.3 wet days totalling 73.2mm. Generally workable, with some weather to plan around.
June in Belawan averages a daily high of 31.9°C with nights around 24.7°C. Expect roughly 5.7 wet days totalling 83.2mm. Generally workable, with some weather to plan around.
July in Belawan averages a daily high of 31.8°C with nights around 24.8°C. Expect roughly 5.5 wet days totalling 116.3mm. Generally workable, with some weather to plan around.
August in Belawan averages a daily high of 31.5°C with nights around 24.4°C. Comfortable conditions for being outdoors all day.
September in Belawan averages a daily high of 31.1°C with nights around 24.3°C. Comfortable conditions for being outdoors all day.
October in Belawan averages a daily high of 30.9°C with nights around 24.4°C. Expect roughly 10 wet days totalling 213mm. Generally workable, with some weather to plan around.
November in Belawan averages a daily high of 30.5°C with nights around 24.5°C. Expect roughly 6 wet days totalling 35mm. Generally workable, with some weather to plan around.
December in Belawan averages a daily high of 30.3°C with nights around 24.1°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. Belawan peaks at 81.
Based on 30 years of records, November–February scores highest for comfort in Belawan, balancing daytime temperature against rainfall.
April is the warmest, averaging a daily high of 32.1°C.
October is the wettest, averaging 213mm of rain across roughly 10 wet days.
December is the coolest month, with average daily highs around 30.3°C.