Isiolo Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Isiolo. The numbers are calculated over a 30-year period to provide a reliable average. Let's now guide you through the details for a complete overview.

Isiolo has a relatively dry climate with low precipitation, averaging 488 mm of rainfall annually.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

The climate in Isiolo shows significant variation throughout the year. Expect 102 mm of precipitation during the wettest month November, distributed over 20 rainy days.

In contrast, September offers drier and sunnier days, with around 16 mm of rainfall over 5 rainy days.

November, the wettest month, has a maximum daytime temperature of 27°C. During the driest month September you can expect a temperature of 29°C. For more detailed insights into the city’s temperatures, visit our Isiolo Temperature page.

Annual Precipitation in Kenya

The map below shows the annual precipitation across Kenya. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Isiolo’s average annual precipitation is 488 mm. Let’s compare this to some popular worldwide tourist destinations:

New York City, USA, receives 1276 mm of rainfall annually, with precipitation evenly distributed throughout the year.

Osaka, Japan, experiences 1507 mm of rainfall annually, spread across the year with wetter summers.

Adelaide, Australia, enjoys 511 mm of annual precipitation, with dry summers and wet winters.

Singapore, situated near the equator, gets 2581 mm of rainfall annually, with no distinct dry season and consistent monthly precipitation.

How is Precipitation Measured?

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

Interesting weather facts

• "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
• The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm wide and 20 cm thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
• The greatest snowfall recorded was on Mt. Rainier, Washington State, USA—over 31.5 meters fell during the winter of 1972.

For more detailed information about Isiolo’s weather, including sunshine hours, humidity levels, and temperature data, visit our Isiolo Climate page.