September weather forecast
Ura, Bhutan

September signals the retreat of the monsoon from Ura, as the rainfall starts to drop significantly to 292mm (11.5"). This marks the end of the considerably wet spell that the region had been experiencing. Temperatures start to decline noticeably, and the decrease in cloud coverage allows for more daylight hours. Surface wind speeds remain steady at an average of 4.6km/h (2.9mph), indicating calm weather conditions. Thus, September usually offers a welcome break from Ura’s intense summer monsoon.

Temperature

The commencement of September in Ura introduces an average high-temperature of a still hot 32.3°C (90.1°F), closely mirroring the preceding month. Ura throughout September, experiences an average nighttime temperature of 24.6°C (76.3°F).

Heat index

September's heat index is calculated to be a life-threatening hot 46°C (114.8°F). Watchful: Heat cramps and heat exhaustion are predicted. Continued exertion could lead to heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In Ura, the average relative humidity in September is 82%.

Rainfall

In Ura, during September, the rain falls for 22.7 days and regularly aggregates up to 292mm (11.5") of precipitation. Throughout the year, in Ura, Bhutan, there are 178.6 rainfall days, and 1930mm (75.98") of precipitation is accumulated.

Daylight

In Ura, the average length of the day in September is 12h and 19min.
On the first day of the month, sunrise is at 05:35 and sunset at 18:17. On the last day of September, sunrise is at 05:48 and sunset at 17:43 +06.

Sunshine

In September, the average sunshine is 7.6h.

UV index

The months with the highest UV index in Ura are April, May, July through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 7 translates into these guidelines:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.