| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 31° | 21.2° | — | — | 78 |
| February | 31.4° | 21.3° | 57.8mm | 4.5 | 73 |
| March | 31.3° | 20.9° | — | — | 77 |
| April | 31.3° | 21.7° | — | — | 77 |
| May | 31.5° | 21.2° | — | — | 76 |
| June | 31.2° | 21° | — | — | 77 |
| July | 31° | 20.8° | 107.6mm | 10 | 64 |
| August | 30.9° | 20.6° | — | — | 78 |
| September | 30.6° | 20.6° | — | — | 80 |
| October | 30.1° | 21.1° | — | — | 82 |
| November | 30° | 20.7° | — | — | 82 |
| December | 30.3° | 21.3° | — | — | 81 |
January in Gunungsitoli averages a daily high of 31°C with nights around 21.2°C. Comfortable conditions for being outdoors all day.
February in Gunungsitoli averages a daily high of 31.4°C with nights around 21.3°C. Expect roughly 4.5 wet days totalling 57.8mm. Generally workable, with some weather to plan around.
March in Gunungsitoli averages a daily high of 31.3°C with nights around 20.9°C. Comfortable conditions for being outdoors all day.
April in Gunungsitoli averages a daily high of 31.3°C with nights around 21.7°C. Comfortable conditions for being outdoors all day.
May in Gunungsitoli averages a daily high of 31.5°C with nights around 21.2°C. Comfortable conditions for being outdoors all day.
June in Gunungsitoli averages a daily high of 31.2°C with nights around 21°C. Comfortable conditions for being outdoors all day.
July in Gunungsitoli averages a daily high of 31°C with nights around 20.8°C. Expect roughly 10 wet days totalling 107.6mm. Generally workable, with some weather to plan around.
August in Gunungsitoli averages a daily high of 30.9°C with nights around 20.6°C. Comfortable conditions for being outdoors all day.
September in Gunungsitoli averages a daily high of 30.6°C with nights around 20.6°C. Comfortable conditions for being outdoors all day.
October in Gunungsitoli averages a daily high of 30.1°C with nights around 21.1°C. Comfortable conditions for being outdoors all day.
November in Gunungsitoli averages a daily high of 30°C with nights around 20.7°C. Comfortable conditions for being outdoors all day.
December in Gunungsitoli averages a daily high of 30.3°C with nights around 21.3°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. Gunungsitoli peaks at 82.
Based on 30 years of records, August–January scores highest for comfort in Gunungsitoli, balancing daytime temperature against rainfall.
May is the warmest, averaging a daily high of 31.5°C.
July is the wettest, averaging 107.6mm of rain across roughly 10 wet days.
November is the coolest month, with average daily highs around 30°C.