December weather forecast
Dar es Salaam, Tanzania

In December, Dar es Salaam marks the year-end with temperatures reaching up to 30.8°C (87.4°F), making it one of the hottest months of the year. Yet a generous amount of daylight, lasting approximately 12.5 hours, is complemented by a cooling sea temperature of 28.6°C (83.5°F). The coastal winds further alleviate the heat to a certain extent, creating a harmonious balance. The stunning weather complements the vibrant festive season, as the city gears up to welcome the New Year with jubilance.

Temperature

The average high-temperature in Dar es Salaam during December registers at a still tropical 30.8°C (87.4°F), closely corresponding to the preceding month. Dar es Salaam's average low-temperature is measured at a warm 24.8°C (76.6°F) during December.

Heat index

The heat index in December is evaluated at a torrid 39°C (102.2°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Research indicates the heat index considers values in shaded locales and with light winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in December is 77%.

Rainfall

In Dar es Salaam, in December, it is raining for 24.3 days, with typically 75mm (2.95") of accumulated precipitation. In Dar es Salaam, during the entire year, the rain falls for 255.3 days and collects up to 734mm (28.9") of precipitation.

Sea temperature

In Dar es Salaam, the average seawater temperature in December is 28.6°C (83.5°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.

Daylight

December has the longest days of the year in Dar es Salaam, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:57 and sunset at 18:27. On the last day of December, sunrise is at 06:10 and sunset at 18:41 EAT.

Sunshine

In December, the average sunshine is 9.2h.

UV index

January through March and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 7 in December interprets into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take heed! Reflections of sand and water make the Sun's UV rays stronger.