Climate - Arusha (Tanzania)
Average weather, temperature, rainfall, sunshine hours
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Climate chart - Arusha
The climate of Arusha is subtropical, tempered by altitude, with a warmer period from October to March and a cooler period from June to August.
The city is located in the north-east of Tanzania, at 1,350 meters (4,430 feet) above sea level, and at the foot of Mount Meru, beyond which lies Kilimanjaro.
We are in the area of Tanzania where there are two rainy seasons, a more intense one from March to May and a less intense one from October to December.
Arusha - Climate data
In Arusha, the average temperature of the coldest month (July) is of 18.0 °C (64.4 °F), that of the warmest month (March) is of 22.4 °C (72.4 °F). Here are the average temperatures.Arusha - Average temperatures (1991-2020) | Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
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| January | 15.6 | 28 | 21.8 | 60 | 82 | 71.3 |
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| February | 15.9 | 28.4 | 22.1 | 61 | 83 | 71.8 |
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| March | 17.1 | 27.8 | 22.4 | 63 | 82 | 72.4 |
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| April | 17.3 | 25 | 21.2 | 63 | 77 | 70.1 |
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| May | 16.4 | 23.1 | 19.7 | 62 | 74 | 67.5 |
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| June | 14.7 | 22.3 | 18.5 | 59 | 72 | 65.3 |
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| July | 13.9 | 22.1 | 18 | 57 | 72 | 64.4 |
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| August | 14.3 | 23.2 | 18.7 | 58 | 74 | 65.7 |
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| September | 14.7 | 25.1 | 19.9 | 59 | 77 | 67.8 |
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| October | 16 | 26.7 | 21.3 | 61 | 80 | 70.4 |
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| November | 16.4 | 26.8 | 21.6 | 62 | 80 | 70.9 |
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| December | 15.8 | 26.8 | 21.3 | 61 | 80 | 70.4 |
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| Year | 15.7 | 25.4 | 20.5 | 60.2 | 77.7 | 69 |
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In Arusha, precipitation amounts to 1125 millimeters (44.3 inches) per year: it is therefore quite abundant. It ranges from 15 mm (0.6 in) in the driest months (August, September) to 340 mm (13.4 in) in the wettest one (April). Here is the average precipitation.Arusha - Average precipitation| Month | Millimeters | Inches | Days |
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| January | 65 | 2.6 | 12 |
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| February | 65 | 2.6 | 12 |
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| March | 145 | 5.7 | 15 |
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| April | 340 | 13.4 | 21 |
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| May | 170 | 6.7 | 14 |
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| June | 40 | 1.6 | 5 |
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| July | 20 | 0.8 | 5 |
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| August | 15 | 0.6 | 4 |
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| September | 15 | 0.6 | 3 |
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| October | 40 | 1.6 | 6 |
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| November | 125 | 4.9 | 15 |
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| December | 90 | 3.5 | 15 |
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| Year | 1125 | 44.3 | 127 |
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In Arusha, there are on average around 2780 sunshine hours per year. Here are the average hours of sunshine per day.
Arusha - Sunshine hours| Month | Average | Total |
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January | 9 | 275 | February | 9 | 250 | March | 8 | 250 | April | 6.5 | 195 | May | 6 | 185 | June | 6 | 185 | July | 6.5 | 205 | August | 7 | 215 | September | 8 | 245 | October | 9 | 275 | November | 8 | 245 | December | 8 | 250 | Year | 7.6 | 2780 |
Arusha - Weather by month
Based on the period 1991-2020
In January, the weather in Arusha is usually warm. The average temperature is of 21.8 °C (71 °F), with a minimum of 15.6 °C (60.1 °F) and a maximum of 28 °C (82.5 °F).
On the coldest nights of the month, the temperature usually drops to around 12 °C (54 °F).
On the warmest days of the month, the temperature usually reaches around 31 °C (88 °F).
Precipitation amounts to 65 mm (2.6 in), distributed over 12 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 72% of the time.
The average humidity is 67%.
The average wind speed is 11 kph (7 mph).
In February, the weather in Arusha is usually warm. The average temperature is of 22.1 °C (72 °F), with a minimum of 15.9 °C (60.6 °F) and a maximum of 28.4 °C (83 °F).
On the coldest nights of the month, the temperature usually drops to around 12.5 °C (54.5 °F).
On the warmest days of the month, the temperature usually reaches around 31.5 °C (88.5 °F).
Precipitation amounts to 65 mm (2.6 in), distributed over 12 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 72% of the time.
The average humidity is 67%.
The average wind speed is 11 kph (7 mph).
In March, the warmest month of the year, the weather in Arusha is usually warm. The average temperature is of 22.4 °C (72 °F), with a minimum of 17.1 °C (62.7 °F) and a maximum of 27.8 °C (82.1 °F).
On the coldest nights, the temperature usually drops to around 13 °C (55.5 °F).
On the warmest days, the temperature usually reaches around 31.5 °C (88.5 °F).
Precipitation amounts to 145 mm (5.7 in), distributed over 15 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
In April, the weather in Arusha is usually warm. The average temperature is of 21.2 °C (70 °F), with a minimum of 17.3 °C (63.1 °F) and a maximum of 25 °C (77 °F).
On the coldest nights, the temperature usually drops to around 14.5 °C (58 °F).
On the warmest days, the temperature usually reaches around 28 °C (83 °F).
Precipitation amounts to 340 mm (13.4 in), distributed over 21 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 15 kph (10 mph).
In May, the weather in Arusha is usually warm. The average temperature is of 19.7 °C (68 °F), with a minimum of 16.4 °C (61.5 °F) and a maximum of 23.1 °C (73.5 °F).
On the coldest nights, the temperature usually drops to around 13.5 °C (56 °F).
On the warmest days, the temperature usually reaches around 26.5 °C (79.5 °F).
Precipitation amounts to 170 mm (6.7 in), distributed over 14 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is 17 kph (11 mph).
In June, the weather in Arusha is usually warm. The average temperature is of 18.5 °C (65 °F), with a minimum of 14.7 °C (58.5 °F) and a maximum of 22.3 °C (72.1 °F).
On the coldest nights, the temperature usually drops to around 11 °C (51.5 °F).
On the warmest days, the temperature usually reaches around 25.5 °C (78 °F).
Precipitation amounts to 40 mm (1.6 in), distributed over 5 days.
The day lasts on average 11 hours and 55 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is 17 kph (10 mph).
In July, the coldest month of the year, the weather in Arusha is usually very mild. The average temperature is of 18.0 °C (64 °F), with a minimum of 13.9 °C (56.9 °F) and a maximum of 22.1 °C (71.8 °F).
On the coldest nights of the month, the temperature usually drops to around 9.5 °C (49 °F).
On the warmest days of the month, the temperature usually reaches around 25.5 °C (77.5 °F).
Precipitation amounts to 20 mm (0.8 in), distributed over 5 days.
The day lasts on average 11 hours and 55 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is 18 kph (11 mph).
In August, the weather in Arusha is usually warm. The average temperature is of 18.7 °C (66 °F), with a minimum of 14.3 °C (57.7 °F) and a maximum of 23.2 °C (73.7 °F).
On the coldest nights of the month, the temperature usually drops to around 10.5 °C (51 °F).
On the warmest days of the month, the temperature usually reaches around 27 °C (80.5 °F).
Precipitation amounts to 15 mm (0.6 in), distributed over 4 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 19 kph (12 mph).
In September, the weather in Arusha is usually warm. The average temperature is of 19.9 °C (68 °F), with a minimum of 14.7 °C (58.5 °F) and a maximum of 25.1 °C (77.1 °F).
On the coldest nights, the temperature usually drops to around 10.5 °C (51.5 °F).
On the warmest days, the temperature usually reaches around 28.5 °C (83 °F).
Precipitation amounts to 15 mm (0.6 in), distributed over 3 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 68% of the time.
The average humidity is 66%.
The average wind speed is 20 kph (12 mph).
In October, the weather in Arusha is usually warm. The average temperature is of 21.3 °C (70 °F), with a minimum of 16 °C (60.8 °F) and a maximum of 26.7 °C (80 °F).
On the coldest nights, the temperature usually drops to around 12.5 °C (55 °F).
On the warmest days, the temperature usually reaches around 30 °C (86.5 °F).
Precipitation amounts to 40 mm (1.6 in), distributed over 6 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 73% of the time.
The average humidity is 67%.
The average wind speed is 20 kph (12 mph).
In November, the weather in Arusha is usually warm. The average temperature is of 21.6 °C (71 °F), with a minimum of 16.4 °C (61.6 °F) and a maximum of 26.8 °C (80.3 °F).
On the coldest nights, the temperature usually drops to around 13 °C (55.5 °F).
On the warmest days, the temperature usually reaches around 30 °C (85.5 °F).
Precipitation amounts to 125 mm (4.9 in), distributed over 15 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
In December, the weather in Arusha is usually warm. The average temperature is of 21.3 °C (70 °F), with a minimum of 15.8 °C (60.5 °F) and a maximum of 26.8 °C (80.2 °F).
On the coldest nights of the month, the temperature usually drops to around 12.5 °C (55 °F).
On the warmest days of the month, the temperature usually reaches around 29.5 °C (85.5 °F).
Precipitation amounts to 90 mm (3.5 in), distributed over 15 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
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