Weather overview
Бома lies near the Congo River estuary, where the climate stays warm year-round but shifts between wet and dry seasons. From November to April, heavy rains dominate, with December and January often bringing the heaviest downpours. The dry season runs from May to October, offering a break from frequent showers, though brief rain can still occur in October.
Travelers to Бома will find the air consistently humid, especially during the wet months. The dry season provides slightly more comfortable conditions, though temperatures rarely drop below 20 °C even at night. If you prefer drier weather, June through September are the most predictable months to visit.
Temperature
Temperatures in Бома remain steady, with daytime highs typically between +28 °C and +31 °C throughout the year. The warmest months are March, April, and October, when averages peak near +31 °C. Nighttime lows dip to around +20 °C in the cooler dry season (July and August) but stay above +23 °C during the wetter months.
The most noticeable shift comes in June and July, when temperatures ease slightly, with highs around +28 °C and lows near +20 °C. This period offers a mild respite from the heat, though the difference is subtle compared to the rest of the year. For those sensitive to humidity, the dry season’s lower moisture levels make the warmth feel more manageable.
| Month | Minimum | Maximum |
|---|---|---|
| January | 23.5 | 30.2 |
| February | 24.1 | 31 |
| March | 24.4 | 31.2 |
| April | 24.5 | 31.2 |
| May | 24.4 | 31.3 |
| June | 22 | 29.2 |
| July | 19.9 | 28.2 |
| August | 19.7 | 28.5 |
| September | 21.5 | 29.3 |
| October | 23.6 | 31.5 |
| November | 23.8 | 30.1 |
| December | 23.8 | 30.1 |
Precipitation
Бома’s rainfall is sharply divided between wet and dry seasons. The heaviest rains fall from November to April, with December and March often exceeding 250 mm of precipitation. November and April also see significant rain, though slightly less intense than the peak months.
The dry season, from May to October, brings far less rain, with June, July, and August often recording under 30 mm per month. Even in this period, brief showers can occur, particularly in October, when rainfall begins to increase again. Travelers should prepare for sudden downpours if visiting during the wet season.
| Month | Precipitation |
|---|---|
| January | 257 |
| February | 252 |
| March | 226 |
| April | 269 |
| May | 104 |
| June | 11 |
| July | 26 |
| August | 5 |
| September | 16 |
| October | 80 |
| November | 326 |
| December | 361 |
What to pack
For a trip to Бома during the wet season (November to April), lightweight, quick-drying clothing is essential, along with a sturdy rain jacket or umbrella. Waterproof footwear will help navigate muddy streets, and breathable fabrics will keep you comfortable in the heat and humidity. A hat and sunglasses are useful year-round, given the strong equatorial sun.
In the dry season (May to October), you can pack lighter, though evenings may feel slightly cooler, so a light sweater or long sleeves are worth bringing. Mosquito protection is important at any time of year, as the warm, humid climate creates ideal conditions for insects. If you plan to explore outdoors, a reusable water bottle will help you stay hydrated in the heat.
| Month | Wind speed | Direction |
|---|---|---|
| January | 0.7 | 262 |
| February | 0.4 | 211 |
| March | 0.5 | 235 |
| April | 0.5 | 190 |
| May | 1.2 | 220 |
| June | 1.7 | 221 |
| July | 1.7 | 234 |
| August | 1.8 | 238 |
| September | 2 | 236 |
| October | 2.1 | 229 |
| November | 1.1 | 236 |
| December | 0.7 | 247 |