September weather forecast
Djibouti, Djibouti

In September, the persistent heat of the summer starts to lose its intensity in Djibouti. The temperatures take a noticeable dip, offering much-needed relief after the draining summer heat. Apart from the decrease in temperature, September also notes a drop in rainfall after two significantly wet months, bringing back the arid weather conditions. Reinforcing the climate transition, the wind speed descends to an average of 9.9km/h (6.2mph), one of the lowest speeds of the year. A month of respite, September marks the onset of the transition from arid summer months to the moderately warm winter months.

Temperature

Djibouti's entry into September measures an average high-temperature of a still torrid 35.6°C (96.1°F), closely parallel to the preceding month. Djibouti encounters a steady low-temperature average of 30°C (86°F) throughout the month of September.

Heat index

The heat index in September is estimated at an extremely hot 44°C (111.2°F). Remain alert: Heat exhaustion and heat cramps are predicted. Extended effort can lead to heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', integrates the air's temperature and its humidity to showcase the felt temperature by people. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The average relative humidity in September is 54%.

Rainfall

In Djibouti, in September, during 5.5 rainfall days, 8mm (0.31") of precipitation is typically accumulated. Throughout the year, in Djibouti, there are 81.4 rainfall days, and 125mm (4.92") of precipitation is accumulated.

Snowfall

September is the only month when snow falls. September has the most snowfall days of the year in Djibouti. Snow falls for 0.1 days.

Sea temperature

June and September, with an average sea temperature of 30.8°C (87.4°F), are months with the warmest seawater in Djibouti.
Note: One might not get the desired cooling sensation in waters that have temperatures higher than 30°C (86°F).

Daylight

The average length of the day in September in Djibouti is 12h and 11min.
On the first day of the month, sunrise is at 05:57 and sunset at 18:17. On the last day of September, in Djibouti, sunrise is at 05:56 and sunset at 17:58 EAT.

Sunshine

In September, the average sunshine in Djibouti is 11.6h.

UV index

The months with the highest UV index in Djibouti are May through September, with an average maximum UV index of 8. A UV Index reading of 8 to 10 represents a very high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 8 in September translates into these instructions:
Precautions are essential; the risk of damage to unprotected skin and eyes is too high. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.