Soyo climate

Name: Soyo
Address: AO

Soyo is warmest in March, with average highs of 29 °C, and coldest in July, when nights average 20 °C. April is the wettest month (137 mm) and July the driest (0.9 mm). Figures are 1991–2020 climate normals.

Across a full year Soyo averages 780 mm of rain and 266 days above 25 °C.

Angola · population 221,555 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month March 29 °C
Coldest month July 20 °C
Driest month July 1 mm
Wettest month April 137 mm
Least cloud June 50 % cloud
Hottest on record April 32 °C
Coldest on record July 17 °C
Warmest sea March 28 °C

What to expectSoyo through the year

Soyo has a clear annual cycle: average daily highs run from 24 °C in July to 29 °C in March, a swing of 5.5 °C in mean temperature across the year.

Counted across a normal year, 266 days a year reach 25 °C, 6 of them reach 30 °C. The warmest reading in the 1991–2020 record is 32 °C, in April.

Rain is strongly seasonal. April averages 137 mm against 1 mm in July — 152 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Soyo is warmest in March at 28 °C and coldest in August at 21 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	27.8 °C	113 mm	83 %
February	28.4 °C	116 mm	84 %
March	28.8 °C	120 mm	83 %
April	28.2 °C	137 mm	83 %
May	27.1 °C	42 mm	65 %
June	25.0 °C	1 mm	50 %
July	23.5 °C	1 mm	53 %
August	23.5 °C	2 mm	60 %
September	24.7 °C	5 mm	64 %
October	26.3 °C	30 mm	73 %
November	27.2 °C	102 mm	79 %
December	27.4 °C	110 mm	83 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	27.8 °C	24.9 °C	26.3 °C	30.9 °C	21.5 °C	31	1
February	28.4 °C	25.4 °C	26.9 °C	32.0 °C	23.2 °C	28	1
March	28.8 °C	25.8 °C	27.2 °C	32.1 °C	23.0 °C	31	3
April	28.2 °C	25.4 °C	26.7 °C	32.3 °C	22.5 °C	30	1
May	27.1 °C	24.5 °C	25.6 °C	31.1 °C	20.6 °C	29	0
June	25.0 °C	22.2 °C	23.3 °C	29.0 °C	18.7 °C	12	0
July	23.5 °C	20.4 °C	21.7 °C	28.6 °C	17.0 °C	4	0
August	23.5 °C	20.5 °C	21.8 °C	28.5 °C	17.1 °C	4	0
September	24.7 °C	22.0 °C	23.1 °C	30.1 °C	18.4 °C	8	0
October	26.3 °C	23.8 °C	24.9 °C	30.9 °C	21.3 °C	28	0
November	27.2 °C	24.7 °C	25.8 °C	31.0 °C	22.2 °C	30	0
December	27.4 °C	24.7 °C	26.0 °C	31.9 °C	21.8 °C	31	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	113 mm	18	12 h/day	83 %	84 %	15 km/h	27.2 °C
February	116 mm	16	12 h/day	84 %	83 %	15 km/h	28.1 °C
March	120 mm	18	12 h/day	83 %	83 %	15 km/h	28.4 °C
April	137 mm	19	12 h/day	83 %	86 %	15 km/h	27.6 °C
May	42 mm	8	12 h/day	65 %	87 %	15 km/h	25.8 °C
June	1 mm	0	12 h/day	50 %	86 %	15 km/h	23.4 °C
July	1 mm	0	12 h/day	53 %	87 %	15 km/h	21.6 °C
August	2 mm	0	12 h/day	60 %	87 %	15 km/h	21.4 °C
September	5 mm	1	12 h/day	64 %	86 %	17 km/h	23.0 °C
October	30 mm	6	12 h/day	73 %	83 %	19 km/h	25.0 °C
November	102 mm	17	12 h/day	79 %	84 %	18 km/h	26.2 °C
December	110 mm	18	12 h/day	83 %	85 %	16 km/h	26.5 °C

How Soyo compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Soyo	29 °C	20 °C	780 mm	266
Cabinda · Angola	29 °C	20 °C	1,267 mm	298
Boma · Democratic Republic of the Congo	31 °C	19 °C	1,150 mm	363
Matadi · Democratic Republic of the Congo	31 °C	18 °C	1,065 mm	359
Pointe-Noire · Republic of the Congo	29 °C	20 °C	1,446 mm	327
Kikolo · Angola	32 °C	18 °C	573 mm	364
Luanda · Angola	31 °C	18 °C	425 mm	359

Where Soyo ranks

Ranking	Position	Value
Best beach destinations in Africa in May	23rd of 50	90/100
Best beach destinations in Africa in June	27th of 50	95/100
Best beach destinations in Africa in October	27th of 50	92/100
Best beach destinations in Africa year-round	28th of 50	82/100
Warmest sea temperatures in Africa in February	28th of 50	28 °C
Warmest sea temperatures in Africa in March	29th of 50	28 °C

Planning a trip? See the best time to visit Soyo.

QuestionsCommon questions about Soyo’s climate

When is the best time to visit Soyo?

That depends on what you want, so the honest answer is a comparison rather than a single month. July, August, September sit closest to 20 °C on average, March is the warmest month and July the driest. The month-by-month table above has the full picture.

How hot does Soyo get?

In March, the warmest month, daily highs average 29 °C. About 6 days a year pass 30 °C. The highest value in the 1991–2020 record is 32 °C.

How cold does it get in winter?

Nights average 20 °C in July, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Soyo?

April, averaging 137 mm over 19 days with rain. The driest month is July with 1 mm. The year as a whole averages 780 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Soyo rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: -6.135°, 12.369° (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.