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

This page shows both the average monthly rainfall and the number of rainy days in Accra, Greater Accra, Ghana. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Let's now guide you through the details for a complete overview.

On average, Accra receives a reasonable amount of rainfall, with an annual precipitation of 730 mm.

Monthly Precipitation Levels

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

The seasons in Accra, bring significant changes in precipitation. The wettest month, June, receives heavy rainfall, with an average of 183 mm of precipitation.

This rainfall is distributed across 21 rainy days. In contrast, the driest month, January, experiences much less rainfall, totaling 15 mm over 5 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

June, the wettest month, has a maximum daytime temperature of 29°C. The city receives 138 hours of sunshine in this period. During the driest month January you can expect a temperature of 30°C. For more detailed insights into the city’s temperatures, visit our Accra Temperature page.

Annual Precipitation in Ghana

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

Amsterdam Precipitation Compared World Wide

Accra’s average annual precipitation is 730 mm. Let’s compare this to some popular worldwide tourist destinations:

Boston, USA, experiences 1238 mm of annual precipitation, including significant snowfall during the winter.

Beijing, China, receives 560 mm of annual precipitation, concentrated in the summer months.

Perth, Australia, receives 565 mm of rainfall annually, mostly during the winter months.

Kuala Lumpur, Malaysia, receives 2529 mm of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.

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

• Mawsynram in India is noted as being the wettest place on earth, with over 11 meters of rain falling every year.
• In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm per year, with some years recording virtually no rainfall.
• Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.

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