December weather forecast
Arusha, Tanzania

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Weather in December

The year ends in Arusha with December recording a slight decrease in rainfall from November. The month is characterised with temperatures stably rivalling those in the previous November, an uncommon occurrence in this tropical city. The UV index remains remarkably high along with a steady level of daylight. The weather maintains these steady elements experienced during the past few months, attributing to a consistent December climate.

Temperature

The advent of December brings an average high-temperature of a still warm 27°C (80.6°F), exhibiting minor difference from the previous month. Arusha experiences a significant downturn from peak daytime temperatures throughout December, with the average low-temperature dipping to a fresh 10°C (50°F).

Rainfall

In December, the rain falls for 13 days. Throughout December, 100mm (3.94") of precipitation is accumulated. In Arusha, during the entire year, the rain falls for 113 days and collects up to 1237mm (48.7") of precipitation.

Daylight

The month with the longest days in Arusha is December, with an average of 12h and 18min of daylight.
On the first day of the month, sunrise is at 06:13 and sunset at 18:31. On the last day of December, in Arusha, sunrise is at 06:26 and sunset at 18:45 EAT.

Sunshine

In December, the average sunshine is 8h.

UV index

January through May, August through December, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an excessive health risk from unsafe exposure to UV radiation for average individuals.
Note: In December, a daily maximum UV index of 12 leads to the following instructions:
Ensure every crucial precaution is taken. Individuals with light skin could experience burns in under 5 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Enhance your sun protection with tightly woven, yet airy clothing.

Frequently asked questions

What are the temperatures in Arusha in December?

The high-temperature, in December, in Arusha, is 27°C (80.6°F), while the low-temperature averages to 10°C (50°F).

How much does it rain in Arusha in December?

In Arusha, in December, it is raining for 13 days, with typically 100mm (3.94") of accumulated precipitation.

When are the longest days in Arusha?

With an average of 12h and 18min of daylight, December has the longest days of the year.

What is the average length of the day in December in Arusha?

In Arusha, Tanzania, the average day length in December is 12h and 19min.

What time are sunrise and sunset in December in Arusha?

In December, on the first day of the month, sunrise is at 06:13 and sunset at 18:31. On the last day of the month, sunrise is at 06:26 and sunset at 18:45 EAT.

How long on average sun shines in December in Arusha?

In Arusha, the average sunshine duration in December is 8h.

When is the highest UV index in Arusha?

January through May, August through December, with an average maximum UV index of 12, are months with the highest UV index in Arusha.

How high is the UV index in December in Arusha?

In Arusha, Tanzania, the average daily maximum UV index in December is 12. A UV Index estimate of 11, and higher, represents an extreme health vulnerability from exposure to the Sun's UV radiation.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in December
Arusha, Tanzania

Average temperature in December - Arusha, Tanzania
  • Average high temperature in December: 27°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 December: 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 December
Arusha, Tanzania

Average rainfall in December - Arusha, Tanzania
  • Average rainfall in December: 100mm

The wettest month (with the highest rainfall) is April (368mm).
The driest month (with the least rainfall) is July (15mm).

Average rainfall days in December
Arusha, Tanzania

Average rainfall days in December - Arusha, Tanzania
  • Average rainfall days in December: 13 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 December /
Average sunshine in December
Arusha, Tanzania

Average daylight in December / Average sunshine in December - Arusha, Tanzania
  • Average daylight in December: 12h and 2min

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 December: 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 December
Arusha, Tanzania

Average UV index in December - Arusha, Tanzania
  • Average UV index in December: 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).

Arusha, Tanzania

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