January weather forecast
Pattaya, Thailand

January ushers in the start of the year with warm temperatures. A slight drop in sea temperature to 27.2°C (81°F) allows vacationers to enjoy pleasant dips in the waters off Pattaya beaches. Relative humidity lingers around the annual low providing comfortable explorations either inland or seaside. The rainfall is sparse, setting the stage for dry days ahead. As the month proceeds, daylight increases, indicating the approach of brighter days to come.

Temperature

Pattaya's average high-temperature in January sits at a still hot 30.6°C (87.1°F), showing little difference from the previous month. During January, Pattaya's temperature falls to a steady low-temperature average of 23°C (73.4°F).

Heat index

The heat index value for January is appraised at a torrid 37°C (98.6°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In January, the average relative humidity is 73%.

Rainfall

In Pattaya, in January, during 1 rainfall days, 16mm (0.63") of precipitation is typically accumulated. In Pattaya, during the entire year, the rain falls for 106 days and collects up to 1111mm (43.74") of precipitation.

Sea temperature

With an average sea temperature of 27.2°C (81°F), January is the month with the coldest seawater.
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.

Daylight

In January, the average length of the day in Pattaya is 11h and 28min.
On the first day of January, sunrise is at 06:38 and sunset at 18:01. On the last day of the month, sunrise is at 06:42 and sunset at 18:16 +07.

Sunshine

January through April and December, with an average of 8h of sunshine, are months with the most sunshine in Pattaya.

UV index

In January, the average daily maximum UV index in Pattaya is 10. A UV Index estimate of 8 to 10 represents a very high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index, 10 during January, leads to the following recommendations:
Take all necessary measures. Eyes and skin are at risk if left unprotected. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Even when it's cloudy, ensure the generous application and frequent reapplication of a sunscreen with at least 30 SPF, particularly post swim or outdoor activity. Caution! The Sun's UV rays become stronger due to reflections from water and sand.