Soyo climate
Soyo (Angola) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 26 °C79 °F, and about 907 mm36 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Soyo climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 3086 | 2476 | 2781 | 1114.4 |
| Feb | 3086 | 2577 | 2781 | 1154.5 |
| Mar | 3086 | 2577 | 2882 | 1385.4 |
| Apr | 3085 | 2577 | 2781 | 1275.0 |
| May | 2985 | 2374 | 2679 | 783.1 |
| Jun | 2883 | 2169 | 2476 | 30.1 |
| Jul | 2882 | 1967 | 2374 | 00.0 |
| Aug | 2882 | 2067 | 2475 | 30.1 |
| Sep | 2985 | 2170 | 2577 | 120.5 |
| Oct | 3086 | 2374 | 2780 | 763.0 |
| Nov | 3085 | 2475 | 2780 | 1315.1 |
| Dec | 2985 | 2475 | 2780 | 1134.5 |
| Year | 3086 | 1967 | 2679 | 90736 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 83% | 74% | 5.2 | 12:26 |
| Feb | 83% | 76% | 5.2 | 12:19 |
| Mar | 83% | 72% | 5.4 | 12:09 |
| Apr | 86% | 71% | 4.9 | 11:59 |
| May | 86% | 52% | 4.6 | 11:50 |
| Jun | 82% | 43% | 4.3 | 11:46 |
| Jul | 79% | 47% | 4.1 | 11:48 |
| Aug | 77% | 54% | 4.0 | 11:55 |
| Sep | 75% | 57% | 4.2 | 12:05 |
| Oct | 77% | 65% | 4.4 | 12:15 |
| Nov | 82% | 69% | 5.0 | 12:24 |
| Dec | 83% | 75% | 4.9 | 12:29 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Soyo is like
The warmest month is March, with an average high of 30 °C86 °F and a low of 25 °C77 °F. The coldest is July, when highs average 28 °C82 °F and lows 19 °C67 °F. Seasonal differences are small — just 4.2 °C7.5 °F between the warmest and the coolest month.
Annual precipitation is moderate at about 907 mm36 in. The wettest three-month stretch is February–April, which brings 42% of the annual total. Months with less than 20 mm0.8 in on average: June–September. The wettest month is March (138 mm5.4 in), the driest is July (0 mm0.0 in).
Relative humidity ranges from 75% in September to 86% in April. The clearest skies (lowest average cloud amount, 43%) are typical of June. Average wind speed near the ground ranges from 6 km/h (4 mph) in April to 10 km/h (6 mph) in September.
Best time to visit Soyo
Based on these averages, the most comfortable months for sightseeing and outdoor activities are June–September: average highs of 28 °C82 °F to 29 °C85 °F with 0 mm0.0 in to 12 mm0.5 in of precipitation per month.
The most challenging month is March, which is hot, with average highs of 30 °C86 °F and humid (83% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Soyo
- Wetter months (October–May) — highs 2985 to 30 °C86 °F, lows 2374 to 25 °C77 °F, about 111 mm4.4 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
- Drier months (June–September) — highs 2882 to 29 °C85 °F, lows 1967 to 21 °C70 °F, about 5 mm0.2 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.
How Soyo compares
Compared with Cabinda, about 67 km to the north, Soyo has practically the same average temperature and receives 16% less precipitation (907 mm36 in vs 1,085 mm43 in). The difference is largest in September (0.8 °C1.4 °F cooler).
Of the 26 places in Angola covered by World Climates, Soyo is the 4th warmest by annual mean temperature and the 13th wettest by annual precipitation. See all of them on the Angola climate page.
Places in other countries with the most similar temperature and rainfall pattern: Moanda (DR Congo, Aw), Pointe-Noire (Republic of the Congo, Aw) and Boma (DR Congo, Aw).
Nearby places
- Moanda 23 km · 26 °C79 °F · 907 mm36 in
- Cabinda 67 km · 26 °C79 °F · 1,085 mm43 in
- Boma 82 km · 27 °C80 °F · 1,034 mm41 in
- Matadi 125 km · 26 °C79 °F · 1,094 mm43 in
- Pointe-Noire 161 km · 25 °C78 °F · 1,010 mm40 in
- Mbanza Kongo 207 km · 25 °C77 °F · 1,109 mm44 in
- Dolisie 218 km · 25 °C76 °F · 1,520 mm60 in
- Nkayi 240 km · 26 °C78 °F · 1,669 mm66 in
Frequently asked questions
What is the warmest month in Soyo?
March is the warmest month in Soyo, with an average high of 30 °C (86 °F) and an average low of 25 °C (77 °F).
What is the coldest month in Soyo?
July is the coldest month, with an average high of 28 °C (82 °F) and an average low of 19 °C (67 °F).
When does it rain the most in Soyo?
March is the wettest month with about 138 mm (5.4 in) of precipitation; July is the driest with about 0 mm (0.0 in).
What is the best time to visit Soyo?
Judging by long-term averages, the most comfortable months are June–September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.