February weather forecast
Ko Samui, Thailand

February in Ko Samui, Thailand, marks a transition between the drier months and the upcoming wetter period. Relative to January, it is a bit drier with 54mm (2.13") of rain. Visitors can enjoy the beach under sunshine for a longer duration, a trait that carries over to the following month. A hike or outdoor exploration becomes a common activity during this period. The increase in daylight hours also coincides with a slight rise in sea temperature.

Temperature

The transition into February in Ko Samui is marked with an average high-temperature of a still warm 29.4°C (84.9°F), showing an insignificant shift from January's 29°C (84.2°F). Ko Samui in February observes a slight diminution in temperature from daily highs, recording a low-temperature average of 25°C (77°F).

Heat index

February's average heat index is computed to be a fiery hot 36°C (96.8°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

The average relative humidity in February in Ko Samui is 82%.

Rainfall

February is the month with the least rainfall in Ko Samui, Thailand. Rain falls for 5 days and accumulates 54mm (2.13") of precipitation.

Sea temperature

In February, the average sea temperature in Ko Samui is 28.1°C (82.6°F).
Note: Between 25°C (77°F) and 29°C (84.2°F), water temperature is typically considered very warm and pleasurable by everyone. Water activities at these temperatures are enjoyable for extended periods without discomfort.

Daylight

In February, the average length of the day is 11h and 50min.
On the first day of the month, sunrise is at 06:41 and sunset at 18:25. On the last day of February, in Ko Samui, sunrise is at 06:34 and sunset at 18:30 +07.

Sunshine

The month with the most sunshine in Ko Samui is February, with an average of 9h of sunshine.

UV index

February through October, with an average maximum UV index of 12, are months with the highest UV index in Ko Samui. A UV Index value of 11, and more, symbolizes an excessive health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 12 during February translates into these guidelines:
Employ all critical precautions. Guarding against sun damage is essential. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Despite the cloud cover, sunscreen with an SPF of at least 30 should be generously applied and reapplied, particularly after a swim or an outdoor workout. Be on guard! The reflective nature of sand and water boosts UV exposure.