Pemba Island Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Pemba Island, Tanzania. This average is based on long-term data collected between 1990 and 2020. Now, let's explore all the details to give you a full picture.

Pemba Island is known for its substantial rainfall, with annual precipitation reaching 1133 mm (45 in). While the overall climate is wet, there are notable seasonal patterns that create interesting contrasts, as demonstrated in our graph below.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

Pemba Island can be quite wet during April, receiving approximately 282 mm (11 in) of precipitation over 17 rainy days.

In contrast February, experiences much drier conditions, with 22 mm (0.9 in) of rainfall, spread across 5 rainy days.

April, the wettest month, has a maximum daytime temperature of 29°C (84°F). During the driest month February you can expect a temperature of 29°C (84°F). For more detailed insights into the city's temperatures, visit our Pemba Island Temperature page.

Pemba Island's average annual precipitation is 1133 mm (45 in). Let's compare this to some popular worldwide tourist destinations:

In Barcelona, Spain, the average annual precipitation is 644 mm (25 in), evenly distributed across the year with no extreme wet or dry seasons.

In Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.

Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.

Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

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.

The proximity of a location to a large body of water can significantly affect its rainfall patterns:

• Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
• Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.

• Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
• In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) 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 Pemba Island's weather, including sunshine hours, humidity levels, and temperature data, visit our Pemba Island Climate page.