September weather forecast
Chumphon, Thailand

As rains begin to subside a notch in September, the weather in Chumphon starts showing signs of the impending dry spell. The atmospheric conditions remain decidedly tropical, dominated by warmth and moisture. The period marks the end of peak rainfall while introducing the city dwellers to the slightly lower daily temperatures of autumn. The city witnesses a marginal dip in overall precipitation, tallying at 178mm (7.01") across 19 days of rainfall.

Temperature

During September, the average high-temperature is a still hot 31.6°C (88.9°F), identical to the temperature of the preceding month. In Chumphon, an average nighttime temperature of 24.1°C (75.4°F) is expected during September.

Heat index

During September, the heat index is evaluated at an extremely hot 44°C (111.2°F). Alert: Heat cramps and heat exhaustion are likely to occur. Prolonged exertion can lead to heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. 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. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

The average relative humidity in September is 83%.

Rainfall

In Chumphon, during September, the rain falls for 19 days and regularly aggregates up to 178mm (7.01") of precipitation. In Chumphon, Thailand, during the entire year, the rain falls for 172 days and collects up to 1873mm (73.74") of precipitation.

Daylight

In September, the average length of the day is 12h and 11min.
On the first day of September, sunrise is at 06:13 and sunset at 18:32. On the last day of the month, sunrise is at 06:11 and sunset at 18:14 +07.