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Contents
- The climate of Isiolo
- The best time to visit Isiolo
- The worst time to visit Isiolo
- Spring weather in Isiolo
- Summer weather in Isiolo
- Autumn weather in Isiolo
- Winter weather in Isiolo
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Isiolo
Isiolo, Kenya, experiences a predominantly Tropical wet and dry or savanna climate, as per the Köppen climate classification. This climatic disposition primarily signifies alternating rainy and dry seasons. Throughout the year, the weather remains relatively steady with minute fluctuations in the weather parameters across the twelve months.
Temperature appears to remain quite stable throughout the year, with high temperatures oscillating between 21.5°C (70.7°F) and 24.2°C (75.6°F), and low temperatures between 12.3°C (54.1°F) and 14.7°C (58.5°F). Relative humidity remains moderately high all year, ranging from 69% to 82%, contributing to the overall mild and humid environment. Rainfall sees considerable fluctuations in the year, peaking at 235mm (9.25") in April and dropping to its lowest of 57mm (2.24") in July. The number of rainfall days follows a similar trend, with the most rainy days occurring between March and May, and the least in February, hovering around 18.5 days.
Wind speed remains fairly consistent year-round, with average winds displaying a narrow range from 5.7km/h (3.5mph) to 10.4km/h (6.5mph). Visibility stands at around 10km (6.2mi) for most of the year, dipping slightly to 8km (5mi) during April and November. Pressure remains almost stable at around 1013mb throughout the year, and cloud cover varies from 24% to 45%.
The months between March and May see the highest rainfall of about 235mm (9.25"), with correspondingly high humidity and cloud cover, creating wet weather conditions predominant during this period.
Temperature appears to remain quite stable throughout the year, with high temperatures oscillating between 21.5°C (70.7°F) and 24.2°C (75.6°F), and low temperatures between 12.3°C (54.1°F) and 14.7°C (58.5°F). Relative humidity remains moderately high all year, ranging from 69% to 82%, contributing to the overall mild and humid environment. Rainfall sees considerable fluctuations in the year, peaking at 235mm (9.25") in April and dropping to its lowest of 57mm (2.24") in July. The number of rainfall days follows a similar trend, with the most rainy days occurring between March and May, and the least in February, hovering around 18.5 days.
Wind speed remains fairly consistent year-round, with average winds displaying a narrow range from 5.7km/h (3.5mph) to 10.4km/h (6.5mph). Visibility stands at around 10km (6.2mi) for most of the year, dipping slightly to 8km (5mi) during April and November. Pressure remains almost stable at around 1013mb throughout the year, and cloud cover varies from 24% to 45%.
The months between March and May see the highest rainfall of about 235mm (9.25"), with correspondingly high humidity and cloud cover, creating wet weather conditions predominant during this period.
The best time to visit Isiolo
Keeping in mind the tropical savannah climate, the best time to visit Isiolo would be during the dry period. January and February prove to be the most favorable months with lower humidity levels, fewer rainy days, relatively less cloud cover, and average high temperatures of around 24°C (75.2°F), all leading to a more comfortable and pleasant experience. Sunshine hours around 9 hours per day add to the appeal of these months for outdoor activities and sightseeing.
The worst time to visit Isiolo
Those who prefer to avoid wet weather conditions might want to refrain from visiting between March and May. This period is marked by the height of humidity levels, the maximum number of rainy days, and the highest amount of rainfall. April, in particular, brings the highest rainfall of 235mm (9.25") and 28.4 rainy days - the most in the year.
Spring weather in Isiolo
Spring in Isiolo stretches from March to May. During this phase, the area experiences the highest rainfall with about 235mm (9.25") in April. There is an increase in humidity levels, averaging 81%, making the climate relatively wet and damp. Temperatures largely remain mild, with daily highs averaging 24°C (75.2°F) and lows approximately 14°C (57.2°F). Despite increased rain and humidity, the average amount of daylight and sunshine persists at about 12 hours and 9 hours respectively.
Summer weather in Isiolo
June to August marks the Summer in Isiolo. These months witness a considerable reduction in rainfall levels, from 82mm (3.23") in June to a low of 57mm (2.24") by July. Cloud cover is relatively high, and humidity falls to more comfortable levels, averaging 73%. Despite these changes, temperatures remain consistent with high averages staying around 21°C (69.8°F) and lows about 13°C (55.4°F). Wind speeds pick up during these months, particularly in August, averaging 10.4km/h (6.5mph).
Autumn weather in Isiolo
Autumn, which spans from September to November, sees weather conditions remaining steady in Isiolo. Rainfall begins to rise again, peaking at 207mm (8.15") in November. Relative humidity levels increase slightly, and so does average cloud cover, causing a moderate cooling effect. Temperatures continue to stay consistent, with high averages of about 22°C (71.6°F) and lows around 14°C (57.2°F).
Winter weather in Isiolo
Winter months, December to February, provide a stable and mild climate, making it a favorable time to visit. Rainfall drops to about 75mm (2.95") in January, humidity decreases to around 72%, and cloud cover is at a minimum. Importantly, the temperatures remain mild, high averaging around 22°C (71.6°F) and low approximately 13°C (55.4°F), alongside consistent daylight and sunshine hours at around 12 hours and 9 hours respectively.
Weather in January
In the first month of the year, the area around Isiolo, Kenya, showcases a typically tropical climate. Relative humidity averages 72%, establishing a prevailing feel of mugginess. January sees a moderate amount of rainfall at 75mm (2.95"), offering relief from time to time. Weather in January »
Weather in February
Moving into February, Isiolo witnesses a slight increase in both maximum and minimum temperatures. Attention is drawn to the slight uptick in average wind speed from 6.3km/h (3.9mph) in January to 6.6km/h (4.1mph) in February. Weather in February »
Weather in March
March marks the onset of a substantial shift in weather patterns in Isiolo, Kenya. Noteworthy is the drastic increase in rainfall from 76mm (2.99") in February to 146mm (5.75") in March. This month is characterized by a considerable surge in rainfall, indicating the onset of the wetter part of the year, often referred to as the "long rains". Weather in March »
Weather in April
April stands out as the wettest month of the year, with an average rainfall of 235mm (9.25"). This signifies a period of heavy downpours and cool weather in Isiolo, particularly in relation to other months. This month is marked by dense cloud cover, reduced visibility and a significant decline in sunshine days, making it the least sunny month in comparison. Weather in April »
Weather in May
May sees a reduction in rainfall from the preceding month, bringing a much-needed relief to the city of Isiolo. Despite the decrease, the rainfall level remains relatively high at 124mm (4.88"), maintaining a cool and damp climate. Weather in May »
Weather in June
June brings Isiolo a respite from heavy rain showers, marking the start of a dry spell. Wind speed accelerates to 8.8km/h (5.5mph) from 9.5km/h (5.9mph) noted in May, stirring up more dust and reducing moisture levels. Despite the beginning of drier conditions, temperatures continue to remain consistent, providing a comforting consistency amid the changing weather pattern. Weather in June »
Weather in July
July sees Isiolo in the heart of the dry season, with average rainfall dropping to just 57mm (2.24"), the lowest in the year. The reduction in rain leads to an increasing number of sunshine days, making for brighter and drier days. Weather in July »
Weather in August
August serves as a transition month in Isiolo, breaking away from the drier spell of the preceding month. Rainfall sees an uptick at 73mm (2.87"), moving away from the drought-like condition experienced in July. The transition affirms itself in the form of increased cloud cover and a reduction in sunshine days. Weather in August »
Weather in September
Isiolo witnesses a continued transition into wetter conditions in September, with the rainfall increasing to 65mm (2.56"). The wind speed jumps to a high of 10.3km/h (6.4mph), casting a windy ambience over the city. More moisture is introduced into the atmosphere, leading to increased humidity levels, changing the overall feel of the city. Weather in September »
Weather in October
October introduces significant changes to Isiolo's weather with a slurp to the wetter dimensions of the city’s climate. The amount of rainfall recorded leaps dramatically to 145mm (5.71") from the 65mm (2.56") observed in September. Weather in October »
Weather in November
November sustains the trend of heavy rainfall in Isiolo, peaking in this month at 207mm (8.15"). Underlined is the maximum intensity of the "short rains" season, turning the city lush and green. The city gets wrapped in a moist and cool mantle, with the increased precipitation also causing a rise in the humidity levels. Weather in November »
Weather in December
December ushers in relief, with a decline in rainfall to 151mm (5.94"), tapering off the "short rains" of the preceding months. Reducing rainfall intensity ushers in a more balanced climate in Isiolo, with slightly increased sunshine days and a subtle decrease in humidity levels. Weather in December »
Frequently asked questions
How much does it rain in Isiolo?
In Isiolo, Kenya, during the entire year, the rain falls for 304.7 days and collects up to 1436mm (56.54") of precipitation.
What are the months with the highest UV index in Isiolo?
The months with the highest UV index in Isiolo are January through March, May through October and December, with an average maximum UV index of 5.
What are the least humid months in Isiolo?
February and September, with an average relative humidity of 69%, are the least humid months.
What time of the year is the hottest in Isiolo?
The warmest month in Isiolo is March, with an average high-temperature of 24.2°C (75.6°F) and an average low-temperature of 14.2°C (57.6°F).
What is the rainiest month in Isiolo?
April is the month with the most rainfall. Rain falls for 28.4 days and accumulates 235mm (9.25") of precipitation.
What are the months with the lowest UV index in Isiolo?
The months with the lowest UV index are April and November, with an average maximum UV index of 4.
When are the longest days in Isiolo?
With an average of 12h and 6min of daylight, June has the longest days of the year in Isiolo, Kenya.
What is the coldest month in Isiolo?
Isiolo's average lowest temperatures are recorded in July and November, reaching a high of 21.5°C (70.7°F).
What is the driest month in Isiolo?
July is the month with the least rainfall in Isiolo, Kenya. Rain falls for 24.2 days and accumulates 57mm (2.24") of precipitation.
What month has the most sunshine in Isiolo?
The month with the most sunshine in Isiolo, Kenya, is September, with an average of 9.6h of sunshine.
What are the most humid months in Isiolo?
The months with the highest humidity in Isiolo, Kenya, are November and December, with an average relative humidity of 82%.
What is the month with the least sunshine in Isiolo?
With an average of 8.4h of sunshine, November has the least sunshine of the year.
What is the month with the shortest days in Isiolo?
December has the shortest days of the year in Isiolo, Kenya, with an average of 12h and 6min of daylight.
Is there Daylight Saving Time (DST) in Isiolo?
Isiolo, Kenya, does not observe Daylight Saving Time (DST). EAT timezone is used throughout the entire year.
Average temperature
Isiolo, Kenya
The warmest month (with the highest average high temperature) is March (24.2°C).
The months with the lowest average high temperature are July and November (21.5°C).
The months with the highest average low temperature are April and October (14.7°C).
The coldest month (with the lowest average low temperature) is January (12.3°C).
Average pressure
Isiolo, Kenya
- Average pressure in January:
1013.2mbar - Average pressure in February:
1012.4mbar - Average pressure in March:
1012.3mbar - Average pressure in April:
1012.8mbar - Average pressure in May:
1013.9mbar - Average pressure in June:
1015mbar
- Average pressure in July:
1015.4mbar - Average pressure in August:
1015.1mbar - Average pressure in September:
1014.5mbar - Average pressure in October:
1013.2mbar - Average pressure in November:
1013.1mbar - Average pressure in December:
1013.4mbar
The month with the highest atmospheric pressure is July (1015.4mbar).
The month with the lowest atmospheric pressure is March (1012.3mbar).
Average wind speed
Isiolo, Kenya
- Average wind speed in January:
6.3km/h - Average wind speed in February:
6.6km/h - Average wind speed in March:
6.9km/h - Average wind speed in April:
7.3km/h - Average wind speed in May:
9.5km/h - Average wind speed in June:
8.8km/h
- Average wind speed in July:
9.3km/h - Average wind speed in August:
10.4km/h - Average wind speed in September:
10.3km/h - Average wind speed in October:
9.7km/h - Average wind speed in November:
6.4km/h - Average wind speed in December:
5.7km/h
The windiest month (with the highest average wind speed) is August (10.4km/h).
The calmest month (with the lowest average wind speed) is December (5.7km/h).
Average humidity
Isiolo, Kenya
The months with the highest relative humidity are November and December (82%).
The months with the lowest relative humidity are February and September (69%).
Average rainfall
Isiolo, Kenya
- Average rainfall in January:
75mm - Average rainfall in February:
76mm - Average rainfall in March:
146mm - Average rainfall in April:
235mm - Average rainfall in May:
124mm - Average rainfall in June:
82mm
The wettest month (with the highest rainfall) is April (235mm).
The driest month (with the least rainfall) is July (57mm).
Average rainfall days
Isiolo, Kenya
- Average rainfall days in January:
20.3 days - Average rainfall days in February:
18.5 days - Average rainfall days in March:
25.3 days - Average rainfall days in April:
28.4 days - Average rainfall days in May:
28.4 days - Average rainfall days in June:
24.4 days
- Average rainfall days in July:
24.2 days - Average rainfall days in August:
25 days - Average rainfall days in September:
24.1 days - Average rainfall days in October:
28.2 days - Average rainfall days in November:
29.2 days - Average rainfall days in December:
28.7 days
The month with the highest number of rainy days is November (29.2 days).
The month with the least rainy days is February (18.5 days).
Average daylight / Average sunshine
Isiolo, Kenya
- Average daylight in January:
12h and 1min - Average daylight in February:
12h and 1min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 1min - Average daylight in May:
12h and 1min - Average daylight in June:
12h and 1min
- Average daylight in July:
12h and 1min - Average daylight in August:
12h and 1min - Average daylight in September:
12h and 1min - Average daylight in October:
12h and 1min - Average daylight in November:
12h and 1min - Average daylight in December:
12h and 1min
The month with the longest days is June (Average daylight: 12h and 6min).
The month with the shortest days is December (Average daylight: 12h and 6min).
- Average sunshine in January:
9h and 2min - Average sunshine in February:
9h and 2min - Average sunshine in March:
9h and 0min - Average sunshine in April:
8h and 3min - Average sunshine in May:
9h and 0min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
9h and 0min - Average sunshine in August:
9h and 1min - Average sunshine in September:
9h and 4min - Average sunshine in October:
8h and 5min - Average sunshine in November:
8h and 2min - Average sunshine in December:
8h and 3min
The month with the most sunshine is September (Average sunshine: 9h and 36min).
The month with the least sunshine is November (Average sunshine: 8h and 24min).
Average sunshine days
Isiolo, Kenya
- Average sunshine days in January:
7.2 days - Average sunshine days in February:
5.9 days - Average sunshine days in March:
3.8 days - Average sunshine days in April:
0.8 days - Average sunshine days in May:
1 days - Average sunshine days in June:
2.5 days
- Average sunshine days in July:
3 days - Average sunshine days in August:
1.9 days - Average sunshine days in September:
2.6 days - Average sunshine days in October:
1.5 days - Average sunshine days in November:
0.5 days - Average sunshine days in December:
1.2 days
The month with the most sunshine days is January (7.2 days).
The month with the least sunshine days is November (0.5 days).
Average UV index
Isiolo, Kenya
The months with the highest UV index are January, February, March, May, June, July, August, September, October and December (UV index 5).
The months with the lowest UV index are April and November (UV index 4).
Average cloud cover
Isiolo, Kenya
The month with the most cloud cover is November (Cloud cover 45).
The months with the least cloud cover are January and February (Cloud cover 24).
Average visibility
Isiolo, Kenya
The months with the highest visibility are January, February, June, August and September (10km).
The months with the lowest visibility are April and November (8km).
Isiolo, Kenya
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