January weather forecast
Dar es Salaam, Tanzania

The start of the year sees temperatures in Dar es Salaam reaching 30.5°C (86.9°F) on the higher end, with humidity hovering around 78%. The coastal city experiences quite a breezy weather with wind speeds averaging 14.2km/h (8.8mph). Due to its proximity to the equator, Daylight hours do not vary significantly, providing approximately 12.5 hours, complimented by 8.1 hours of sunshine. The frequency of rainfall is notable, attributing to the lush green landscapes that are synonymous with this Tanzanian metropolis.

Temperature

The arrival of January marks a slight shift to an average high-temperature of a still hot 30.5°C (86.9°F) from December's 30.8°C (87.4°F). An average low-temperature of 25.3°C (77.5°F) is recorded during the nights in January.

Heat index

The heat index in January is evaluated at a torrid 39°C (102.2°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In January, the average relative humidity in Dar es Salaam, Tanzania, is 78%.

Rainfall

In January, the rain falls for 20.3 days. Throughout January, 49mm (1.93") of precipitation is accumulated. Throughout the year, there are 255.3 rainfall days, and 734mm (28.9") of precipitation is accumulated.

Sea temperature

In Dar es Salaam, the average seawater temperature in January is 28.5°C (83.3°F).
Note: Water surface temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal and extremely delightful for long-lasting pleasure in any water activity.

Daylight

In Dar es Salaam, the average length of the day in January is 12h and 28min.
On the first day of January, sunrise is at 06:11 and sunset at 18:41. On the last day of the month, sunrise is at 06:24 and sunset at 18:48 EAT.

Sunshine

The average sunshine in January in Dar es Salaam is 8.1h.

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 value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, the maximum UV index of 7 suggests this advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be attentive! The UV exposure is heightened with reflections from sand and water.