Climate in Nairobi (Kenya)

The climate of Nairobi is influenced by altitude, and it's pleasantly warm during the day and cool, or even a little chilly, at night.
The city is the capital of Kenya and is located in the south-west of the country, on the plateau, at 1,650 meters (5,400 feet) above sea level.
We are in the area of Kenya where there are two rainy periods, corresponding with the two passages of the sun at the zenith. The rainiest months are April, May and November.
In the western part of the city (Dagoretti), located at 1,850 meters (6,070 feet), rainfall amounts to 1,000 mm (40 in) per year.
July and August are the coolest and driest months, but they are also the least sunny.

Nairobi - Climate data

In Nairobi, the average temperature of the coldest month (July) is of 17.5 °C (63.5 °F), that of the warmest month (March) is of 21.5 °C (70.8 °F). Here are the average temperatures.
Precipitation amounts to 745 millimeters (29.3 inches) per year: so, it is at an intermediate level. It ranges from 11.5 mm (0.5 in) in the driest month (July) to 155 mm (6.1 in) in the wettest one (April). Here is the average precipitation.
There are on average around 2440 sunshine hours per year. Here are the average hours of sunshine per day.

Nairobi - Weather by month

Based on the period 1991-2020

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January is generally a warm month. The average temperature is of 20.4 °C (69 °F), with a minimum of 13.9 °C (57.1 °F) and a maximum of 26.9 °C (80.5 °F).
On the coldest nights of the month, the temperature usually drops to around 9.5 °C (49.5 °F).
On the warmest days of the month, the temperature usually reaches around 29.5 °C (85 °F).
Precipitation amounts to 40 mm (1.6 in), distributed over 5 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 75% of the time.
The average humidity is 64%.
The average wind speed is 15 kph (9 mph).

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February is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of 21.2 °C (70 °F), with a minimum of 14 °C (57.2 °F) and a maximum of 28.3 °C (83 °F).
On the coldest nights of the month, the temperature usually drops to around 10 °C (50.5 °F).
On the warmest days of the month, the temperature usually reaches around 31.5 °C (88.5 °F).
Precipitation amounts to 50 mm (2 in), distributed over 4 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 77% of the time.
The average humidity is 58%.
The average wind speed is 15 kph (9 mph).

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March, the warmest month of the year, is generally a warm month. The average temperature is of 21.5 °C (71 °F), with a minimum of 15.1 °C (59.1 °F) and a maximum of 28 °C (82.4 °F).
On the coldest nights, the temperature usually drops to around 11 °C (52 °F).
On the warmest days, the temperature usually reaches around 30.5 °C (87 °F).
Precipitation amounts to 70 mm (2.8 in), distributed over 6 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 70% of the time.
The average humidity is 63%.
The average wind speed is 15 kph (9 mph).

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April is generally a warm month. The average temperature is of 20.7 °C (69 °F), with a minimum of 15.4 °C (59.6 °F) and a maximum of 26.1 °C (79 °F).
On the coldest nights, the temperature usually drops to around 12.5 °C (54 °F).
On the warmest days, the temperature usually reaches around 29 °C (84 °F).
Precipitation amounts to 155 mm (6.1 in), distributed over 13 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is 12 kph (7 mph).

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May is generally a warm month. The average temperature is of 19.7 °C (67 °F), with a minimum of 14.6 °C (58.3 °F) and a maximum of 24.8 °C (76.7 °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 28 °C (82 °F).
Precipitation amounts to 110 mm (4.3 in), distributed over 11 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 48% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).

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June is generally a warm month. The average temperature is of 18.4 °C (65 °F), with a minimum of 13 °C (55.4 °F) and a maximum of 23.8 °C (74.8 °F).
On the coldest nights, the temperature usually drops to around 9 °C (48 °F).
On the warmest days, the temperature usually reaches around 27 °C (81 °F).
Precipitation amounts to 25 mm (1 in), distributed over 6 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 9 kph (6 mph).

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July, the coldest month of the year, is generally a very mild month. The average temperature is of 17.5 °C (63 °F), with a minimum of 11.8 °C (53.2 °F) and a maximum of 23.2 °C (73.7 °F).
On the coldest nights of the month, the temperature usually drops to around 7.5 °C (46 °F).
On the warmest days of the month, the temperature usually reaches around 27.5 °C (81.5 °F).
Precipitation amounts to 11.5 mm (0.5 in), distributed over 5 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 33% of the time.
The average humidity is 70%.
The average wind speed is 9 kph (6 mph).

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August is generally a very mild month. The average temperature is of 18 °C (64 °F), with a minimum of 12.2 °C (54 °F) and a maximum of 23.8 °C (74.9 °F).
On the coldest nights of the month, the temperature usually drops to around 7.5 °C (45.5 °F).
On the warmest days of the month, the temperature usually reaches around 28 °C (82.5 °F).
Precipitation amounts to 13.6 mm (0.5 in), distributed over 5 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 33% of the time.
The average humidity is 68%.
The average wind speed is 10 kph (6 mph).

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September is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of 19.3 °C (67 °F), with a minimum of 12.7 °C (54.8 °F) and a maximum of 26 °C (78.9 °F).
On the coldest nights, the temperature usually drops to around 8.5 °C (47 °F).
On the warmest days, the temperature usually reaches around 29.5 °C (85 °F).
Precipitation amounts to 25 mm (1 in), distributed over 5 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 46% of the time.
The average humidity is 63%.
The average wind speed is 11 kph (7 mph).

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October is generally a warm month. The average temperature is of 20.6 °C (69 °F), with a minimum of 14.4 °C (57.8 °F) and a maximum of 26.9 °C (80.4 °F).
On the coldest nights, the temperature usually drops to around 10.5 °C (51 °F).
On the warmest days, the temperature usually reaches around 30 °C (86 °F).
Precipitation amounts to 45 mm (1.8 in), distributed over 7 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 57% of the time.
The average humidity is 63%.
The average wind speed is 13 kph (8 mph).

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November is generally a warm month. The average temperature is of 20.1 °C (68 °F), with a minimum of 15.1 °C (59.1 °F) and a maximum of 25.1 °C (77.3 °F).
On the coldest nights, the temperature usually drops to around 12 °C (53.5 °F).
On the warmest days, the temperature usually reaches around 28 °C (82.5 °F).
Precipitation amounts to 120 mm (4.7 in), distributed over 14 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).

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December is generally a warm month. The average temperature is of 20.1 °C (68 °F), with a minimum of 14.6 °C (58.3 °F) and a maximum of 25.6 °C (78 °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 28 °C (82.5 °F).
Precipitation amounts to 80 mm (3.1 in), distributed over 9 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).