Month by month
| Month | Afternoon | Sea | Rain | Verdict |
|---|---|---|---|---|
| January | 28.6 °C | 26.6 °C | 9 days | Ideal — one of the best times of year |
| February | 29.2 °C | 27.6 °C | 8 days | Ideal — one of the best times of year |
| March | 28.9 °C | 27.8 °C | 15 days | Possible, with trade-offs |
| April | 28.8 °C | 27.3 °C | 12 days | Ideal — one of the best times of year |
| May | 28 °C | 25.5 °C | 1 day | Ideal — one of the best times of year |
| June | 25.5 °C | 22.9 °C | 0 day | Ideal — one of the best times of year |
| July | 24.1 °C | 20.9 °C | 0 day | Ideal — one of the best times of year |
| August | 24 °C | 19.8 °C | 0 day | Ideal — one of the best times of year |
| September | 25.1 °C | 21 °C | 1 day | Ideal — one of the best times of year |
| October | 27 °C | 24.5 °C | 5 days | Ideal — one of the best times of year |
| November | 28.1 °C | 26.3 °C | 12 days | Ideal — one of the best times of year |
| December | 28.1 °C | 26.2 °C | 11 days | Ideal — one of the best times of year |
Nearby in September
Before you go
Three things to check once you have picked your dates.
Entry
No visa needed for stays of up to 30 days. Passport valid for at least 6 months. Passport needs 2 blank pages; overstaying is fined 15,000 kwanzas a day and you may not be allowed to leave until paid.
For a British passport, per the UK Foreign Office on 28 May 2026. Rules change: check before booking.
Safety
Outside the areas advised against
Parts of the country are advised against (Cabinda province except Cabinda city; within 1 km of the DRC border (Lunda Norte)); Sumbe is not one of them.
Official advice updated 28 May 2026
Health
CDC level 2 notice: Polio (global)
Vaccines · typhoid recommended for most travellers; hepatitis A and hepatitis B if you are not already vaccinated; rabies, cholera and polio depending on activities and areas visited. Routine vaccines up to date (measles in particular).
Yellow fever · Vaccine recommended for the whole country. Vaccination certificate required on entry for all travellers.
Malaria · Present. Areas: All. Preventive medication recommended: Atovaquone-proguanil, doxycycline, mefloquine, tafenoquine — prescribed before departure.
Mosquitoes · dengue and Zika reported: protect yourself from bites.
Per the CDC (page reviewed 25 August 2026); see a travel clinic a few weeks before departure.
Beau Fixe is not a safety or health authority. These notes summarise dated public texts and link to their source: France Diplomatie (Licence Ouverte 2.0), Foreign, Commonwealth & Development Office (gov.uk, Open Government Licence v3.0), Centers for Disease Control and Prevention (Source: CDC). Only the competent authorities are authoritative.
FAQ
Can you swim in Sumbe in September?
The sea averages 21°C in September — swimming is possible but brisk.
How hot is Sumbe in September?
Expect 25.1°C in the afternoon and 20.3°C at night, averaged over the last 10 years.
Does it rain a lot in Sumbe in September?
Around 1 days with rain (≥ 1 mm) in the month — 3% of days.