Alor Setar climate
Alor Setar (Malaysia) has a tropical monsoon climate (Köppen Am). The average temperature over the year is 27 °C81 °F, and about 2,303 mm91 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Alor Setar climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 3086 | 2373 | 2680 | 1134.4 |
| Feb | 3188 | 2373 | 2781 | 502.0 |
| Mar | 3290 | 2475 | 2882 | 1174.6 |
| Apr | 3289 | 2577 | 2883 | 1586.2 |
| May | 3187 | 2678 | 2883 | 2027.9 |
| Jun | 3086 | 2578 | 2882 | 1556.1 |
| Jul | 3086 | 2577 | 2781 | 1716.7 |
| Aug | 3086 | 2577 | 2781 | 1997.8 |
| Sep | 3085 | 2576 | 2781 | 2359.3 |
| Oct | 3085 | 2476 | 2781 | 29812 |
| Nov | 3085 | 2476 | 2780 | 34113 |
| Dec | 2985 | 2374 | 2680 | 26510 |
| Year | 3290 | 2373 | 2781 | 2,30391 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 83% | 68% | 5.0 | 11:48 |
| Feb | 79% | 58% | 5.8 | 11:55 |
| Mar | 79% | 64% | 5.9 | 12:04 |
| Apr | 81% | 74% | 5.8 | 12:15 |
| May | 84% | 86% | 5.1 | 12:24 |
| Jun | 84% | 86% | 5.0 | 12:28 |
| Jul | 84% | 87% | 4.9 | 12:27 |
| Aug | 84% | 87% | 5.0 | 12:19 |
| Sep | 85% | 89% | 4.8 | 12:09 |
| Oct | 86% | 89% | 4.6 | 11:58 |
| Nov | 87% | 87% | 4.3 | 11:50 |
| Dec | 87% | 82% | 4.2 | 11:46 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Alor Setar is like
The warmest month is April, with an average high of 32 °C89 °F and a low of 25 °C77 °F. The coldest is December, when highs average 29 °C85 °F and lows 23 °C74 °F. Temperatures barely change through the year: the warmest and the coolest month differ by only 2.1 °C3.7 °F.
It is very wet, receiving about 2,303 mm91 in of precipitation per year. The wettest three-month stretch is October–December, which brings 39% of the annual total. The wettest month is November (341 mm13 in), the driest is February (50 mm2.0 in).
Relative humidity ranges from 79% in February to 87% in November. The clearest skies (lowest average cloud amount, 58%) are typical of February. Average wind speed near the ground ranges from 3 km/h (2 mph) in April to 5 km/h (3 mph) in January.
Best time to visit Alor Setar
Based on these averages, the most comfortable months for sightseeing and outdoor activities are February: average highs of 31 °C88 °F to 31 °C88 °F with 50 mm2.0 in to 50 mm2.0 in of precipitation per month.
The most challenging month is November, which is very wet (341 mm13 in) and humid (87% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Alor Setar
- Wetter months (May, August–December) — highs 2985 to 31 °C87 °F, lows 2374 to 26 °C78 °F, about 257 mm10 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
- Drier months (January–April, June and July) — highs 3086 to 32 °C90 °F, lows 2373 to 25 °C78 °F, about 127 mm5.0 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
How Alor Setar compares
Compared with Kota Kuala Muda, about 59 km to the south, Alor Setar has practically the same average temperature and receives a similar amount of precipitation.
Of the 32 places in Malaysia covered by World Climates, Alor Setar is the 13th warmest by annual mean temperature and the 28th wettest by annual precipitation. See all of them on the Malaysia climate page.
Places in other countries with the most similar temperature and rainfall pattern: Langsa (Indonesia, Af), Hat Yai (Thailand, Am) and Nakhon Si Thammarat (Thailand, Am).
Nearby places
- Kota Kuala Muda 59 km · 27 °C81 °F · 2,353 mm93 in
- Langkawi (Kuah) 62 km · 28 °C82 °F · 2,198 mm87 in
- Paya Terubong 84 km · 27 °C81 °F · 2,353 mm93 in
- Hat Yai 100 km · 27 °C81 °F · 2,020 mm80 in
- Taiping 147 km · 28 °C82 °F · 2,370 mm93 in
- Ipoh 189 km · 27 °C81 °F · 2,471 mm97 in
- Pasir Mas 197 km · 27 °C80 °F · 2,422 mm95 in
- Kota Bharu 208 km · 27 °C81 °F · 2,538 mm100 in
Frequently asked questions
What is the warmest month in Alor Setar?
April is the warmest month in Alor Setar, with an average high of 32 °C (89 °F) and an average low of 25 °C (77 °F).
What is the coldest month in Alor Setar?
December is the coldest month, with an average high of 29 °C (85 °F) and an average low of 23 °C (74 °F).
When does it rain the most in Alor Setar?
November is the wettest month with about 341 mm (13.4 in) of precipitation; February is the driest with about 50 mm (2.0 in).
What is the best time to visit Alor Setar?
Judging by long-term averages, the most comfortable months are February.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 167 m, while Alor Setar lies at about 7 m. Temperatures on this page were therefore adjusted by +1 °C1.9 °F using the standard lapse rate of 6.5 °C per 1,000 m.