Last updated: August 28, 2025
In Arusha, Tanzania, January brings a pleasant blend of warmth and occasional rainfall, with maximum temperatures reaching 29°C (85°F) and an average of 20°C (68°F). The city experiences a mild minimum temperature of 11°C (53°F), creating comfortable nights. With 91 mm (3.6 in) of precipitation spread over 11 days, visitors can expect to encounter refreshing showers amidst the lush greenery. The humidity level of 68% adds to the vibrant atmosphere, making January a delightful time to explore the natural beauty and cultural richness of this scenic locale.
January in Arusha, Tanzania, offers a delightful range of temperatures, encouraging exploration and adventure in this vibrant region. With a minimum of 11°C (53°F) and a pleasant average of 20°C (68°F), the month strikes a harmonious balance between cool mornings and warmer afternoons, peaking at a maximum of 29°C (85°F). As the month transitions to February, temperatures begin to rise slightly, hinting at the approach of the warmer months, while still providing the cool respite that the higher elevations are known for. This consistent warmth throughout January, along with minimal fluctuations in temperature, makes it an ideal time for trekking and sightseeing amid Arusha's stunning landscapes, ensuring visitors are both comfortable and invigorated during their stay.
In January, Arusha, Tanzania, experiences a moderate rainfall with 91 mm (3.6 in) spread over approximately 11 days. This marks the onset of the wet season, showcasing a significant increase in precipitation compared to the drier months of June through September, where rainfall drops to a mere 11 mm (0.4 in) or less. Following January, the rainfall peaks in March with 201 mm (7.9 in), indicating the build-up of moisture that characterizes this vibrant region. The trend suggests a gradual transition into more humid conditions, as demonstrated by the increase in rainfall into April, before tapering off towards the middle of the year. January's precipitation sets the stage for lush landscapes, making it a pivotal month for the region’s ecology.
In January, Arusha, Tanzania experiences a notable humidity level of 68%, setting the tone for the month as the rainy season approaches. This level of moisture in the air is relatively elevated, paving the way for a gradual decline over the next couple of months, with February dropping to 62% and March falling further to 55%. However, April sees a slight rebirth in humidity at 58%, and as the year progresses into May, the levels further intensify, peaking at 71% before hitting a 73% high in June. The trend reveals seasonal fluctuations, with humidity remaining fairly consistent around the mid-60s to low 70s during the cooler months. Notably, both November and December finish off the year with a significant surge, reaching 83% and 84%, respectively, as the region prepares for its wetter season, showcasing the impactful seasonal rhythm of Arusha's climate.
In January, Arusha, Tanzania experiences an extremely high UV Index of 15, with a burn time of just 10 minutes—a trend that continues throughout the early months of the year. The UV Index reaches its peak in February and March, hitting 16, before remaining consistent at this level through April. Even as the year progresses into May, the UV Index begins to taper slightly to 14, yet it still remains categorized as extreme. This pattern persists until July and August, where it dips slightly to 12 and 13, respectively. Interestingly, from September through December, the UV Index stabilizes around 14, maintaining its extreme classification. For those planning to spend time outdoors, understanding this trend is crucial for skin safety. Make sure to check the daily UV levels to stay protected—learn more about the UV Index in Arusha here.
UV Risk Categories
In January, Arusha, Tanzania basks in a delightful 285 hours of sunshine, setting the stage for a vibrant start to the year. As the months progress, the city experiences a steady increase in sunlight, peaking at an impressive 350 hours in October. Throughout the year, sunshine hours remain consistently high, with March and August both enjoying 336 hours, highlighting a remarkable trend of abundant sunshine that characterizes the region. This sun-soaked climate not only enhances the beauty of Arusha but also invites visitors to immerse themselves in its breathtaking landscapes and rich cultural experiences.
In January, Arusha, Tanzania, enjoys a 38% chance of sunny weather, kicking off the year with a promising start. This is followed by a dip in February, where the likelihood drops to 26%, but March bounces back with a healthier 42%. The trend reflects an interesting pattern: as the year progresses towards the dry season, sunny days become more frequent, peaking in October and November with an impressive 47%. This sunny trend is a vital aspect for travelers and locals alike, offering a delightful contrast to the wetter months of April and May, where the chance of sunshine plummets to around 20%. Overall, January sets a hopeful tone for those seeking bright days in the lush landscapes of Arusha.
In Arusha, Tanzania, January heralds a season of consistent 12-hour days, a trend that elegantly continues throughout the following months of February, March, April, November, and December. This balance of daylight not only offers ample time for exploration but also reflects the region's unique equatorial rhythm, where day and night remain nearly equal. As daylight begins to wane slightly in May through August, with 11 hours per day, residents and visitors alike can enjoy the gradual transition of seasons. However, come September and October, the daylight returns to a full 12 hours, reestablishing that harmonious cycle for which Arusha is renowned. This predictable pattern provides a wonderful backdrop for outdoor adventures and cultural experiences, making each month in Arusha delightfully vibrant.
In January, the wind in Arusha, Tanzania begins the year with a gentle breeze, averaging 1.5 m/s (3 mph). This slight variability carries through to February and March, where the wind speed remains consistent. However, as the landscape transitions into the long dry season, wind speeds gradually pick up, reaching 1.8 m/s (4 mph) in April and further increasing to 2.5 m/s (6 mph) by July. This trend highlights a steady crescendo throughout the dry months, peaking mid-year before slightly tapering off in the following months. By December, the breezes return to a more tranquil pace of 1.4 m/s (3 mph), closing out the year with a soothing calm. Overall, the wind's evolution in Arusha reflects the vibrant shifts in the climate, contributing to the region's unique atmospheric charm.
Weather in Arusha varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Arusha, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, the weather in Arusha features a minimum temperature of 11°C (53°F) and an average of 20°C (68°F), with highs reaching 29°C (85°F). The month sees about 91 mm (3.6 in) of precipitation over 11 days, accompanied by a humidity level of 68%. In contrast, February experiences similar minimum temperatures, but the average rises slightly to 20°C (69°F) and reaches a maximum of 30°C (86°F). Precipitation decreases to 75 mm (2.9 in) over 9 days, with humidity also dropping to 62%. Overall, February tends to be a bit warmer and drier, making it a more favorable time for outdoor activities. For more information, check Arusha weather in February.
In January, Arusha experiences warm temperatures, with a minimum of 11°C (53°F) and a maximum of 29°C (85°F), averaging around 20°C (68°F). The month sees considerable rainfall, totaling 91 mm (3.6 in) over 11 rainy days, and humidity levels are relatively high at 68%. In contrast, March offers slightly higher temperatures, with a minimum of 12°C (53°F) and a maximum of 31°C (87°F), averaging 21°C (70°F). However, it is also a wetter month, receiving 201 mm (7.9 in) of precipitation across 16 days, while humidity decreases to 55%. For more detailed weather information, check out Arusha weather in March.
In January, Arusha experiences mild temperatures with a minimum of 11°C (53°F) and a maximum of 29°C (85°F), while the average remains comfortable at 20°C (68°F). The month is characterized by relatively moderate rainfall of 91 mm (3.6 in) over 11 days, leading to a humidity level of 68%. In contrast, April sees slightly warmer minimum temperatures at 14°C (57°F) and a very similar average temperature of 20°C (68°F), but the maximum drops to 28°C (83°F). Notably, April is much wetter, with precipitation reaching 174 mm (6.9 in) over 26 days and lower humidity at 58%. For a more detailed look at Arusha's weather during this month, visit Arusha weather in April.
In January, Arusha experiences temperatures ranging from a minimum of 11°C (53°F) to a maximum of 29°C (85°F), with an average temperature of 20°C (68°F). The month sees considerable precipitation, totaling 91 mm (3.6 in) over 11 days, and a humidity level of 68%. In contrast, May has cooler temperatures, with a minimum of 10°C (50°F), an average of 18°C (64°F), and a maximum of 26°C (78°F). While the total precipitation is lower at 68 mm (2.7 in), it occurs over a slightly longer period of 15 days, and humidity rises to 71%. Overall, both months feature a variety of wet days, but January tends to be warmer with higher rainfall compared to the cooler, yet still humid conditions found in May. For more detailed information, visit Arusha weather in May.
January and June present contrasting weather patterns in terms of temperature and precipitation. January enjoys warmer temperatures, with averages around 20°C (68°F) and maximums reaching 29°C (85°F), while June is cooler, with an average of 16°C (62°F) and a maximum of 24°C (76°F). In terms of humidity, June is slightly more humid at 73%, compared to January's 68%. Precipitation also differs significantly; January receives more rainfall at 91 mm (3.6 in) over 11 days, compared to June's much drier 11 mm (0.4 in) over just 3 days. For a more detailed overview, check out Arusha weather in June.
In January, the weather is generally warmer and wetter, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 29°C (85°F) and an average of 20°C (68°F). This month also sees more rainfall, with 91 mm (3.6 in) spread over 11 days, contributing to the humidity level of 68%. In contrast, July offers cooler temperatures, with a minimum of 8°C (46°F) and a maximum of 24°C (76°F), resulting in an average temperature of 16°C (60°F). Precipitation is significantly less in July, totaling only 10 mm (0.4 in) over just 2 days, while humidity remains the same at 68%. This stark contrast in weather highlights the seasonal variations experienced throughout the year. For more details, check out Arusha weather in July.
Comparing January and August weather reveals distinct differences in temperature and precipitation. In January, temperatures range significantly from a minimum of 11°C (53°F) to a maximum of 29°C (85°F), with an average of 20°C (68°F). This month also experiences higher precipitation at 91 mm (3.6 in) over 11 days and a humidity level of 68%. In contrast, August features cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 27°C (81°F), leading to a lower average of 17°C (62°F). Additionally, August sees significantly less rainfall, measuring only 11 mm (0.4 in) over just 2 days, accompanied by a slightly lower humidity of 63%. For more details on weather conditions in August, you can visit Arusha weather in August.
In January, the weather tends to be warmer with average temperatures ranging from a minimum of 11°C (53°F) to a maximum of 29°C (85°F), accompanied by higher humidity levels at 68%. The month also sees significant precipitation, with around 91 mm (3.6 in) falling over 11 days, making it one of the wetter months. In contrast, September experiences cooler temperatures, with averages between 10°C (50°F) and 27°C (82°F), and much lower humidity at 60%. The dry conditions are evident, as the month only records about 8 mm (0.3 in) of rain over just 1 day. For more detailed information, check out Arusha weather in September.
In January, temperatures in Arusha range from a minimum of 11°C (53°F) to a maximum of 29°C (85°F), with an average temperature of 20°C (68°F). The month sees a total precipitation of 91 mm (3.6 in) over 11 days, maintaining a humidity level of 68%. In contrast, October features slightly cooler temperatures with a minimum of 10°C (50°F) and a similar maximum of 29°C (84°F), averaging at 19°C (67°F). Precipitation in October decreases to 51 mm (2.0 in), occurring over 12 days, yet humidity remains consistent at 68%. For more detailed insights on the weather patterns during this month, refer to Arusha weather in October.
In comparing the weather between January and November, both months feature similar average temperatures, hovering around 20°C (68°F). However, January experiences slightly warmer highs of up to 29°C (85°F), while November sees a peak of 30°C (86°F). Precipitation levels differ as well, with January receiving 91 mm (3.6 in) over 11 days, compared to November's 112 mm (4.4 in) spread over 18 days. Furthermore, humidity levels are higher in November at 83%, versus January’s 68%. For more information, check out Arusha weather in November.
January and December weather in Arusha exhibits some notable similarities and differences. Both months share a similar average temperature of around 20°C (68°F), with maximum temperatures peaking at 29°C (85°F). However, January tends to be slightly warmer overall, with a minimum temperature of 11°C (53°F) compared to December's 12°C (54°F). December experiences higher precipitation, with 112 mm (4.4 in) of rainfall over 20 days, while January records 91 mm (3.6 in) over just 11 days, indicating that December is generally wetter and more humid, with an average humidity of 84% compared to January's 68%. For more detailed insights, you can check Arusha weather in December.
As January rolls into Arusha, the weather takes on a distinct character compared to the cooler, dryer months that precede it. With a maximum temperature reaching up to 29°C (85°F) and an average of 20°C (68°F), January offers a warm embrace that contrasts sharply with the lower temps seen in December and earlier. However, this warmth does not come without its challenges, as the region experiences increased humidity and a rise in precipitation with about 11 days of rain, totaling 91 mm (3.6 in). This makes January one of the wetter months, providing lush landscapes but also a more humid atmosphere. For a detailed overview of the weather patterns throughout the year, explore Arusha Climate.