Climate Insights for Mayumba

The climate in Mayumba is hot. The average annual temperature is 25°C and approximately 1413mm of precipitation falls per year. December is the wettest month, receiving around 257mm of rainfall. Mayumba sits near the equator, so seasonal temperature differences are minimal throughout the year.

Mayumba has relatively stable temperatures year-round, staying within a 7°C range. The warmest month is March, when average highs reach 28°C and the mean temperature sits around 27°C. July is the coolest month, with minimum temperatures around 21°C and an average of 22°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between May and June, with a 3°C shift in average temperatures.

Mayumba is a fairly wet location, receiving approximately 1413mm of precipitation annually, which averages out to around 118mm per month. The wettest month is December, averaging 257mm of rainfall. November and January also tend to see above-average precipitation. The driest month is July, with just 3mm. That's 254mm less than December, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Mayumba is mildly breezy, with an average annual wind speed of 15km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 17km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 14km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.

It is currently autumn in Mayumba, which began on March 20, 2026. Mayumba sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in March at around 28°C, while the coldest stretch bottoms out in July near 21°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Mayumba is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 10mm per month. By contrast, March can be uncomfortably hot with temperatures reaching 28°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Mayumba based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.