Climate and monthly weather forecastCha-am, Thailand

The climate of Cha-am

Influenced centrally by Tropical wet and dry or savanna conditions, the geographic location of Cha-am, Thailand carries the Köppen climate classification of 'Aw'. The climate unfolds a distinct pattern throughout the year - a steady procession from mild, dry season to a moist, rainy season marked by the numerical figures documented below.

Upon observing the temperature data, it is found that consistently over the year, high temperatures range from 29°C (84.2°F) to 33°C (91.4°F) and the low temperatures range from 20°C (68°F) to 25°C (77°F). January and December experience the lowest temperatures, whereas April and May are the warmest months. April to June stand out with high temperatures, reaching 33°C (91.4°F). Concurrently, sea temperatures are quite stable throughout the year, varying from 28°C (82.4°F) to 30°C (86°F).

Rainfall in Cha-am shows a clear pattern: dry during early months, the rainfall increases significantly from April to October. The highest rainfall of 223mm (8.78") occurs in October, with nearly half of the month experiencing rain. On the other hand, the least rainfall of 12mm (0.47") is noticed in January. Correspondingly, daylight hours show slight variation from 11.4 hours to 12.9 hours. Sunshine hours stand markedly low from May to September, with only around 5 hours of sunshine per day, while other months enjoy around 9 hours of sunshine.

A strong UV index characterizes Cha-am throughout the year. Particularly high indexes, of 12, are marked from February to September, potentially posing a concern for those with sensitive skin.

The best time to visit Cha-am

The period of the year serving the best conditions for visiting Cha-am spreads from January to March. This period of the year witnesses lesser precipitation, with rainfall figures peaking from 12mm (0.47") to 31mm (1.22") over these months. The average temperature lies between 29°C (84.2°F) and 31°C (87.8°F), additionally accommodating a lower UV index of 9 to 12.

The worst time to visit Cha-am

The time to avoid, weather-wise, when planning a visit to Cha-am, is certain to be May to October. The crux of Cha-am's rainy period happens during these months, the pattern of rainfall showing a steep increase from 139mm (5.47") in May to the maximum 223mm (8.78") in October. Coinciding with this period, the average hours of sunshine drops to only 5 hours a day, compared to January when there is around 9 hours of sunshine daily, considerably reducing outdoor opportunities.

Spring weather in Cha-am

Spring season in Cha-am, during March to May, witnesses an uptick in both temperature and precipitation. The high temperatures range from 31°C (87.8°F) to 33°C (91.4°F), while low temperatures vary between 23°C (73.4°F) and 25°C (77°F). There may be some rain, but the months of March and April still retain moderate rainfall at 31mm (1.22") and 48mm (1.89") respectively. However, by May rainfall escalates to a hefty 139mm (5.47"). Coupled with a high UV index of 12, preventive measures may be necessary for visitors during spring.

Summer weather in Cha-am

Official summer months in Cha-am, June through August, are marked by high levels of rainfall, totalling around 109mm (4.29") to 134mm (5.28") respectively through the months. Competing high temperatures ranging from 32°C (89.6°F) to 33°C (91.4°F) persist, while low temperatures stand invariably at 25°C (77°F). The sea temperatures remain moderately warm at around 29°C (84.2°F) to 30°C (86°F). These months come with reduced sunshine hours, falling to just about 5 hours daily.

Autumn weather in Cha-am

The Autumn period that spans September through November is characterized by heavy rainfall, especially towards the end of September and in October, reaching its yearly peak at 223mm (8.78"). The high temperature varies from 32°C (89.6°F) to 30°C (86°F) and the low temperature stands steadily between 24°C (75.2°F) to 23°C (73.4°F). UV index during this period remains strong at 12 in September, gradually falling to 10 in November, while sunshine hours begin to rise again to around 6 to 7 hours daily.

Winter weather in Cha-am

Winter in Cha-am, spanning December through February, offers a milder and relatively drier weather experience. Rainfall drops significantly, down to 16mm (0.63") in December and 12mm (0.47") in January, before gradually increasing to 24mm (0.94") in February. High temperatures hover between 29°C (84.2°F) to 31°C (87.8°F), with low temperatures dropping to 21°C (69.8°F) in December and climbing again to 22°C (71.6°F) by February. The daylight hours remain mostly constant, while sunshine hours rise to approximately 9 hours a day, making it an opportune time for sightseeing and other outdoor activities.

Weather in January

Cha-am, Thailand, greets the new year with a delightful blend of warmth and sunshine. With a high UV index of 10, January calls for adequate sun protection. Interestingly, it has one of the two months with the lowest rainfall, recording just 12mm (0.47") throughout this winter month. Weather in January »

Weather in February

The shift from January to February in Cha-am marks an appreciable fluctuation in weather conditions. Rainfall doubles to 24mm (0.94"), and the UV index reaches its peak at 12, maintaining it until October. Consequently, beachgoers in February need to balance enjoyment with cautious sun exposure practices. Weather in February »

Weather in March

As Cha-am transitions into March, the city experiences weather favorable for water sports, courtesy of the rising sea temperature that hits 29°C (84.2°F). The increase from February's 28°C (82.4°F) marks the onset of warmer seas until October. Weather in March »

Weather in April

Distinctly warmer than its preceding month, April in Cha-am magnifies the region's tropical weather. Nonetheless, the rise in temperature is complemented by a steady sea temperature of 30°C (86°F), appealing to those wanting a refreshing dip in the sea. Weather in April »

Weather in May

May marks the commencement of significant rainfall in Cha-am, with precipitation peaking at 139mm (5.47"). This marks the onset of Cha-am's rainy season, which extends until October. Although rain showers become more frequent, they rarely disrupt the enjoyment of the city's outdoor pleasures. Weather in May »

Weather in June

While June sustains its predecessor's weather pattern, it demonstrates a crucial transformation in Cha-am's climate. The month records the year's lowest sunshine hours at just 5 hours a day, indicating the region's progression deeper into the monsoon period. Weather in June »

Weather in July

July in Cha-am follows June's lead in terms of weather, but it surpasses it by capturing the year's highest rainfall days at 17. This exemplifies the heart of the monsoon season with frequent and heavier showers. Seawaters continue to be invitingly warm, providing a reprieve from the frequent rains, while the UV index stays at 12, demanding vigilant sun protection. Weather in July »

Weather in August

The weather progression from July to August in Cha-am bears minute fluctuations. The city notes another month of high rainfall, but with a marginal increase to 134mm (5.28"). Evidently, August continues the rainy season's narrative with warm temperatures and copious rainfall. Weather in August »

Weather in September

September witnesses the year’s peak rainfall quantity at 165mm (6.5"), affirming the continuation of the monsoon trend in Cha-am. Greenery thrives, adding splendor to the city's aesthetics. While sea temperatures start to recede, they remain high enough to extend the beach season. Weather in September »

Weather in October

As October unfolds, Cha-am experiences a gradual retreat from the monsoon season, with a noticeable decrease in rainfall to 223mm (8.78"). Sunshine hours creep back up to 6 hours per day, shedding a bright contrast to previous months. Weather in October »

Weather in November

November in Cha-am deviates significantly from October, highlighting a decrease in rainfall that marks the latter's departure from the monsoon period. Correspondingly, sunshine hours increase, underscoring the transition towards sunnier times. Weather in November »

Weather in December

Cha-am's weather in December bears testament to the arrival of its dry season, presenting weather conditions resembling January. Notably, the rainfall plummets to its annual low at 16mm (0.63"), reinstating the dry spell. The sea temperature drops back to 28°C (82.4°F), mimicking the city's weather at the year's onset. Weather in December »