Weather overview
The weather in Саваннакхет follows a clear seasonal rhythm, shaped by the tropical monsoon climate. From November to March, the city enjoys its dry season, with warm days and cooler nights. This period is often considered the most comfortable for travel, as rainfall is minimal and temperatures remain steady between +23 °C and +29 °C.
Starting in April, the heat intensifies, with daytime highs reaching +37 °C before the rains arrive. The wet season begins in May and lasts through September, bringing frequent downpours and high humidity. While the rain can be heavy, it usually doesn’t last all day, leaving room for exploration between showers. By October, the rains taper off, and Саваннакхет gradually returns to its drier, more predictable weather.
Temperature
Temperatures in Саваннакхет stay warm year-round, but the range between day and night varies with the seasons. In the cooler months, like January and December, nights can drop to +16.5 °C, while daytime highs hover around +29 °C. This contrast is less pronounced during the wet season, when nighttime temperatures rarely fall below +24 °C.
The hottest period in Саваннакхет spans March to May, with April being the peak. During this time, daytime temperatures often exceed +35 °C, occasionally reaching +37 °C. The arrival of the monsoon in May brings some relief, though the air remains humid. By November, the heat subsides, and the city settles into a more moderate +25...+31 °C range until the next dry season.
| Month | Minimum | Maximum |
|---|---|---|
| January | 16.5 | 29.7 |
| February | 19.3 | 32.2 |
| March | 22.6 | 35.2 |
| April | 25.3 | 37.5 |
| May | 25.8 | 35.8 |
| June | 25.4 | 34.6 |
| July | 24.9 | 33.7 |
| August | 24.9 | 33.3 |
| September | 24.1 | 32.2 |
| October | 22.8 | 32.1 |
| November | 21.3 | 31.6 |
| December | 18 | 29.2 |
Precipitation
Rainfall in Саваннакхет is highly seasonal, with nearly all of the year’s precipitation falling between May and September. The wettest months, July and September, see over 450 mm of rain each, often in the form of short but intense downpours. These storms can temporarily flood streets, but they also cool the air and nourish the surrounding landscapes.
From November to February, Саваннакхет is almost entirely dry, with rainfall rarely exceeding 20 mm per month. March and April mark the transition, with occasional showers signaling the approaching monsoon. By October, the rains begin to retreat, leaving behind lush greenery and a gradual return to the dry season’s clarity.
| Month | Precipitation |
|---|---|
| January | 5.1 |
| February | 17.2 |
| March | 47.4 |
| April | 103.5 |
| May | 232.1 |
| June | 182.1 |
| July | 482.8 |
| August | 291.3 |
| September | 464.3 |
| October | 120.2 |
| November | 16.5 |
| December | 2 |
What to pack
For a trip to Саваннакхет during the dry season, lightweight, breathable clothing is essential. Days are warm, so pack loose-fitting shirts, shorts, and comfortable footwear for walking. Evenings can be cooler, especially in December and January, so a light jacket or long sleeves may come in handy. A wide-brimmed hat and sunglasses will help shield you from the strong sun.
If you’re visiting Саваннакхет during the wet season, waterproof gear becomes a priority. A compact umbrella or a rain jacket will keep you dry during sudden downpours, while quick-drying clothes will make the humidity more manageable. Closed-toe shoes or sandals with good grip are useful for navigating wet streets. Don’t forget sunscreen—even on cloudy days, the tropical sun can be intense.
| Month | Wind speed |
|---|---|
| January | 2.3 |
| February | 2.4 |
| March | 2.3 |
| April | 2.3 |
| May | 1.8 |
| June | 1.9 |
| July | 1.7 |
| August | 2 |
| September | 1.4 |
| October | 1.8 |
| November | 2.5 |
| December | 3 |