June weather forecast
Bangkok, Thailand

With the arrival of June, Bangkok experiences a continuation of the monsoon season. Pleasingly, the heat starts to retreat, facilitating more comfortable weather conditions for residents and visitors alike. The heightened levels of precipitation continue to be the climate's highlight, keeping the city's plush greenery refreshed. Furthermore, receding temperatures and moisture-packed winds from nearby storms help to alleviate the city's normally high heat levels. The end of the month sees a slight decrease in rainfall, gearing up for July's comparable weather.

Temperature

The shift into June reveals an average high-temperature of a still hot 33.6°C (92.5°F), closely mirroring May's climate. During June nights, Bangkok records an average temperature of 26.1°C (79°F).

Heat index

The average heat index in June is appraised at a burning hot 47°C (116.6°F). Note: Heat exhaustion and heat cramps are probable. Heatstroke can follow with prolonged activity.
One should consider that heat index numbers are for shaded settings and light wind. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In June, the average relative humidity is 74%.

Rainfall

In Bangkok, during June, the rain falls for 16 days and regularly aggregates up to 157mm (6.18") of precipitation. Throughout the year, there are 128 rainfall days, and 1648mm (64.88") of precipitation is accumulated.

Sea temperature

In Bangkok, the average seawater temperature in June is 29.5°C (85.1°F).
Note: For engaging in any water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) are viewed as outstanding and exceptionally pleasing for prolonged durations.

Daylight

The month with the longest days is June, with an average of 12h and 54min of daylight.
On the first day of June, sunrise is at 05:49 and sunset at 18:42. On the last day of the month, sunrise is at 05:53 and sunset at 18:49 +07.

Sunshine

In Bangkok, the average sunshine in June is 5.9h.

UV index

February through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 12 during June translates into the following directions:
Undertake all key precautions, as unprotected skin and eyes may get burns in no time. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Apply generously and frequently a broad-spectrum SPF 30+ sunscreen every two hours, or immediately after swimming or any outdoor exercise. Be wary! Reflections from sand and water make UV radiation more intense.