September weather forecast
Crater, Yemen

As Crater, Yemen steps into September, there is a noticeable decrease in average high temperatures from 32.4°C (90.3°F) to 32.6°C (90.7°F). This month shares the crown with August as the wettest month, with rainfall volume peaking at 9mm (0.35"). Despite the high rainfall, the number of rainfall days reduces by nearly a half when compared to August. As the city transitions into October, it experiences a decrease in rainfall and daytime temperature. The weather in September, with its high rainfall and slightly cooler days, signals the end of summer and the onset of autumn.

Temperature

September commences with an average high-temperature of a still hot 32.6°C (90.7°F), showing little deviation from August's 32.4°C (90.3°F). Crater's September nights experience a subtle temperature dip to an average of 29.9°C (85.8°F).

Heat index

Throughout September, the heat index is evaluated at an extremely hot 42°C (107.6°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Crater, the average relative humidity in September is 69%.

Rainfall

In September, the rain falls for 3.2 days. Throughout September, 5mm (0.2") of precipitation is accumulated. Throughout the year, there are 37.8 rainfall days, and 60mm (2.36") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 12min.
On the first day of the month, sunrise is at 05:48 and sunset at 18:10. On the last day of September, sunrise is at 05:48 and sunset at 17:50 +03.

Sunshine

The average sunshine in September is 11h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 8. A UV Index estimate of 8 to 10 represents a very high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 8 transforms into these recommendations:
Remember to safeguard yourself. Rapid damage can occur to skin and eyes without protection. 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. Opt for tightly woven and loose clothing to enhance protection from the Sun.