January weather forecastArusha, Tanzania
January
Weather in January
Beginning the year in Arusha, Tanzania finds climatic conditions typically tropical, typical of an equatorial region. Temperatures begin a slight downward trend from a high of 29°C (84.2°F) to 10°C (50°F), making for a comfortable range. Despite the tropical reputation, rainfall peaks this month reaching 58mm (2.28") within the span of 11 days. The 12 hours of daylight is akin to most of this region. With an average UV index of 12, it is recommended to use ample sunblock for skin protection.Temperature
January and February are the warmest months, with an average high-temperature of 29°C (84.2°F).Rainfall
In Arusha, during January, the rain falls for 11 days and regularly aggregates up to 58mm (2.28") of precipitation. Throughout the year, in Arusha, there are 113 rainfall days, and 1237mm (48.7") of precipitation is accumulated.Daylight
In Arusha, the average length of the day in January is 12h and 17min.On the first day of the month, sunrise is at 06:27 and sunset at 18:46. On the last day of January, in Arusha, sunrise is at 06:38 and sunset at 18:54 EAT.
Sunshine
In January, the average sunshine is 8h.UV index
The months with the highest UV index in Arusha are January through May, August through December, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 12 during January translates into the following guidance:
Undertake all key precautions, as unprotected skin and eyes may get burns in no time. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Reduce the risk of sunburn by avoiding prolonged exposure and using sunscreen of at least 30 SPF.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Arusha, Tanzania
- Average high temperature in January: 29°C
The warmest months (with the highest average high temperature) are January and February (29°C).
The months with the lowest average high temperature are June and July (21°C).
- Average low temperature in January: 10°C
The month with the highest average low temperature is April (14°C).
The coldest month (with the lowest average low temperature) is September (8°C).
Average rainfall in January
Arusha, Tanzania
- Average rainfall in January: 58mm
The wettest month (with the highest rainfall) is April (368mm).
The driest month (with the least rainfall) is July (15mm).
Average rainfall days in January
Arusha, Tanzania
- Average rainfall days in January: 11 days
The month with the highest number of rainy days is April (20 days).
The month with the least rainy days is September (2 days).
Average daylight in January /
Average sunshine in January
Arusha, Tanzania
- Average daylight in January: 12h and 18min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in January: 8h
The month with the most sunshine is October (Average sunshine: 9h).
The months with the least sunshine are April, May, June and July (Average sunshine: 6h).
Average UV index in January
Arusha, Tanzania
- Average UV index in January: 12
The months with the highest UV index are January, February, March, April, May, August, September, October, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 11).





