Climate and monthly weather forecast
Savannakhet, Laos

With Savannakhet positioned at the tropical latitudes, it falls under the umbrella of the Aw Köppen climate classification. This zoning delineates a Tropical wet and dry, or savanna climate, governed by substantial temperature disparities and unequal rainfall distribution within the year.

Monthly average temperatures fluctuate from 14.7°C (58.5°F) to 35°C (95°F) throughout the year, with the highest spikes in warmth saturating the region in the month of April. In contrast, January shows a temperament towards cooler conditions, as minimum monthly temperatures dip to 14.9°C (58.8°F). Accented by this range, Savannakhet experiences a dynamic thermal profile from the chillier start of the year to the hot mid-year months.

Rainfall in Savannakhet undulates from a mere 2mm (0.08") in December to a staggering 343mm (13.5") in August. The minimal precipitation early in the year gradually crescendos into the mid-year monsoons before tempering down towards the year end. Correspondingly, the number of rainy days elevates from just a single day in January and December to 23 days in August, painting a clear picture of distinct dry and wet seasons.

Daylight hours, while not as variable as other parameters, shift from a low 11.2 hours in December to a peak 13.1 hours in June. In correspondence, sunshine hours oscillate between a low of 5 hours in June and July and highs of 9 hours during the drier months of January, February, and December. Observably, the UV index consistently stays between high to extreme, with the lowest level in December at 8 and swells to an extreme 12 from March to September.

Notably, the most favourable time to visit Savannakhet is in the colder, drier months from November to February. Temperatures during this time oscillate between 14.7°C (58.5°F) and 31.4°C (88.5°F) providing for comfortable exploring conditions. The rainfall dramatically tapers off with just 7mm (0.28") in November and 2mm (0.08") in December, ensuring the weather won't dampen your travel plans. Also, with daylight spanning over 11 hours and sunshine at a pleasant average of 9 hours, this period certainly stamps as the ideal time for outdoor activities.

Conversely, the wettest period from June through October, endowed with monsoons and high humidity, proves challenging for sightseeing. Heavy rainfall peaks in August with an overwhelming 343mm (13.5") spread over 23 days. Additionally, a high UV index of 12 from June to September entails a need for extra precautions against sun exposure, making this period less than desirable for traveling to Savannakhet.

Savannakhet experiences spring from March till May, characterized by ascending temperatures ranging from 21.3°C (70.3°F) to 35°C (95°F). The rainfall starts picking up in March reaching 91mm (3.58") in April, and an intense 168mm (6.61") in May. Correspondingly, the number of rainy days increases from 4 in March to 16 in May. Despite this, daylight and sunshine hours remain ample, with over 12 hours of daylight and 7 to 8 hours of sunshine in these months. Keep in mind the UV index remains at an extreme level of 12.

Summer in Savannakhet stretches from June to August. It is defined by hot, humid, and rainy days. The temperatures loom between 24°C (75.2°F) and 35°C (95°F), with modest variations. The rainfall reaches a dramatic intensity with 263mm (10.35") in June and peaks at 343mm (13.5") in August. Consequently, the number of rainy days soars to 19 in June and 23 in August, displaying prevalent wet conditions. Amid this, daylight stands at approximately 13 hours with 5 to 6 hours of sunshine, while the UV index stays at an extreme 12.

September to November depicts the autumn season in Savannakhet. During this phase, temperatures vary from a minimum of 21.4°C (70.5°F) in November to a maximum of 31.1°C (88°F) in September. Rainfall begins to recede from 219mm (8.62") in September to 7mm (0.28") in November, with a corresponding decrease in rainy days from 17 down to 2 marking the end of the monsoon. Daylight hours begin to decrease but remain above 11 hours, and sunshine hours range from 6 to 8 hours. The UV index starts declining from 12 in September to 9 in November.

December to February signifies winter in Savannakhet. This period is marked by cooler conditions with temperatures swinging between 14.7°C (58.5°F) and 31.4°C (88.5°F). The winter months witness the driest phase of the year, with traces of rainfall in December and January at 2mm (0.08") and 4mm (0.16"), respectively. The number of rainy days reaches a minimal with just a day in December and January. Daylight hovers at approximately 11 hours and sunshine hours stand at a peak of 9 hours. The UV index during these months is relatively lower but remains high between 8 and 9.

The start of the year in Savannakhet, Laos finds the weather fairly mild, with a noticeably cooler climate compared to tropical heat, due to the winter season in Southeast Asia. Daylight lasts for about 11.3 hours, allowing for ample daytime activities. Weather in January »

In February, there is a notable shift towards warmer weather in Savannakhet. It provides a perfect blend of temperature and just the right amount of daylight for outdoor activities. Temperatures rise, as does the UV index, hitting 11 later in the month. Weather in February »

In March, the weather in Savannakhet starts heating up with the onset of the dry season. The days are long, with around 12 hours of daylight, ideal for sightseeing and visiting local landmarks. The UV index, similar to February, remains relatively high, implying continued need for sun protection. Weather in March »

April sees the transition into the hotter months in Savannakhet, with long, sunny days becoming the norm. The UV index reaches its annual peak of 12 this month. The amount of sunshine and daylight remains fairly constant, providing ample opportunity for sightseeing and other outdoor activities. Weather in April »

In May, the weather in Savannakhet continues to heat up. Rainfall further increases, signaling the start of the wet monsoon season, characterized by sudden rain showers. The monsoon's onset is usually accompanied by higher humidity levels, creating a tropical climate feel. Weather in May »

June marks the full onset of the monsoon season in Savannakhet, characterized by daily rain showers and high humidity. Despite the increase in rainfall, the amount of sunshine decreases to its lowest level of the year, ensuring cooler days. Weather in June »

The city of Savannakhet continues to witness consistent rain in July. The high humidity and rainfall during this month make it less ideal for outdoor activities than other periods of the year are. Despite the rain, the amount of daylight remains the same. Weather in July »

August witnesses the peak of the monsoon season in Savannakhet. Unlike the prior months, August experiences slightly less sunshine, which corresponds to an increased amount of rain. This period is less suitable for outdoor activities, but it transforms the landscape into a lush green. Weather in August »

September in Savannakhet is characterized by receding monsoon rains and slightly decreased temperatures. A drop in rainfall occurs, making the environment less humid and more comfortable. Despite the decrease in precipitation, there remains the same amount of daylight hours. Weather in September »

October indicates a further retreat of the monsoon in Savannakhet, and the weather becomes more dry and pleasant. The notable decrease in rainfall translates into a reduction in humidity and a welcome change to a drier climate. Weather in October »

In November, Savannakhet enjoys coming out of the monsoon season, marked by a significant cut back on rainfall, one of the lowest throughout the year. A decrease in temperature is also noticeable, making for fresher mornings and cooler evenings. Weather in November »

December in Savannakhet represents the height of the dry season, with virtually no rainfall. As we move into winter, both daytime and nighttime temperatures drop significantly. The lower temperatures provide a comfortable environment for a host of outdoor activities. Weather in December »