Climate of West Sumatra, Indonesia
Area-weighted average across West Sumatra. For where people actually live and travel, see the cities below.
West Sumatra, a subdivision of Indonesia, has a tropical climate on average. Area-weighted monthly temperatures across the whole territory range from 23.4°C / 74.1°F in January to 24.2°C / 75.6°F in May, with rainfall from 148 mm / 5.8 in to 319 mm / 12.6 in depending on the season (2897 mm / 114.1 in total across the year). See the 2 cities listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 23.4°C74.1°F | 265 mm10.4″ | Tropical |
| February | 23.6°C74.5°F | 211 mm8.3″ | Tropical |
| March | 23.9°C75°F | 266 mm10.5″ | Tropical |
| April | 24.1°C75.4°F | 303 mm11.9″ | Tropical |
| May | 24.2°C75.6°F | 210 mm8.3″ | Tropical |
| June | 23.8°C74.8°F | 152 mm6″ | Tropical |
| July | 23.4°C74.1°F | 148 mm5.8″ | Tropical |
| August | 23.4°C74.1°F | 179 mm7″ | Tropical |
| September | 23.4°C74.1°F | 241 mm9.5″ | Tropical |
| October | 23.6°C74.5°F | 304 mm12″ | Tropical |
| November | 23.5°C74.3°F | 319 mm12.6″ | Tropical |
| December | 23.4°C74.1°F | 299 mm11.8″ | Tropical |
Frequently asked questions
What is the best time to visit West Sumatra?
West Sumatra, Indonesia does not have a clear sunny-and-dry window by our cutoffs. The warmest month is May at 24.2°C / 75.6°F, and the driest is July at 148 mm / 5.8 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of West Sumatra?
West Sumatra, Indonesia has area-weighted monthly average temperatures ranging from 23.4°C / 74.1°F in January to 24.2°C / 75.6°F in May. Annual rainfall averages about 2897 mm / 114.1 in, with the wettest month being November (319 mm / 12.6 in) and the driest July (148 mm / 5.8 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in West Sumatra?
The hottest month in West Sumatra is May, with an area-wide average temperature of 24.2°C / 75.6°F.
What is the coldest month in West Sumatra?
The coldest month in West Sumatra is January, with an area-wide average temperature of 23.4°C / 74.1°F.
When does it rain most in West Sumatra?
The wettest month in West Sumatra is November, averaging about 319 mm / 12.6 in of rainfall. The driest is July with about 148 mm / 5.8 in.