September weather forecast
Lombok, Indonesia

September is a turning point on the weather scale in Lombok, Indonesia, indicating the commencement of the transition phase. As rainfall increases slightly to 21mm (0.83"), the clear blue skies start to gather a few clouds and the temperatures start to rise. Echoing bits of the bygone summer tinge, the weather retains enough warmth making the days still perfect for outdoor activities. The month moves forward with a blend of summer warmth and refreshing breezes culminating in pleasant evenings. With each passing day, September’s weather steps closer to the end of the dry season and paves the way for a newer cycle.

Temperature

The commencement of September brings an average high-temperature of a still warm 27.6°C (81.7°F), marking an inconsequential divergence from August. Lombok's average temperature throughout the nights in September exhibits a minor decrease from daytime highs, stabilizing at a still moderately hot 23.6°C (74.5°F).

Heat index

The average heat index in September is appraised at a hot 31°C (87.8°F). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.
Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.

Humidity

January through March, May through July, September and December, with an average relative humidity of 79%, are the most humid months in Lombok.

Rainfall

In Lombok, in September, it is raining for 11.5 days, with typically 21mm (0.83") of accumulated precipitation. Throughout the year, there are 231.2 rainfall days, and 1002mm (39.45") of precipitation is accumulated.

Daylight

In Lombok, the average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 06:16 and sunset at 18:13. On the last day of September, in Lombok, sunrise is at 05:59 and sunset at 18:09 WITA.

Sunshine

The average sunshine in September is 9.6h.

UV index

January through May, July through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: A typical high UV index of 7 in September suggests the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.