Weather in Boa Vista in October

How October compares

October is the 2nd warmest month of the year in Boa Vista and ranks 13th of 134 destinations we compare for October - see where else is hot in October. Within Cape Verde it is 1st of 2 (Cape Verde in October). Against London's average high of 14.6°C in October, Boa Vista is 14.6°C warmer by day and 16.2°C warmer at night.

Daytime and night-time in October

The typical October day in Boa Vista peaks at 29.2°C, but that is an average: the warmest 10% of days reach 30.9°C or more. About 100% of days top 25°C and 1 in 4 pass 30°C. Nights average 24.6°C; one night in ten drops to 23.6°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest October day here reached 32.9°C (2015-10-05) and the coldest night 20.9°C (1993-10-27).

Rain in October

Dry (3 rainy days or fewer): about 2 days with 1 mm or more, 18 mm in total. Year to year it varies a lot - the wettest October was 1999 with 133 mm, the driest 1993 with 0 mm. Humidity averages 75%, which makes the heat feel heavier than the thermometer suggests.

Sea temperature in October

The sea averages 26.6°C - warm enough to swim (22°c+). Depending on the year it ranges from 26.0°C to 27.2°C. For the warmest sea here, come in September (26.6°C).

Sunshine and daylight

Around 6.4 hours of sunshine a day (estimated from cloud cover), 11.6 hours of daylight: the sun rises about 06:24 and sets about 18:11 local time in mid-October. Average cloud cover is 45%.

Is October a good time to visit Boa Vista?

Yes - it is one of the better months: hot days, little rain. The best months for Boa Vista on our scoring are June, May, March; months averaging 25°C or more: Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec.

Expect heat that lasts into the evening

Pack for hot weather throughout your stay, with loose, breathable clothing rather than a wardrobe built around layers. October is among Boa Vista's hottest months, and 28% of days reach 30°C, so leaving more energetic plans for the cooler parts of the day makes sense. Humidity averages 75%, which can make the warmth feel more tiring, especially around midday. Nights offer limited relief: the average low is 24.6°C, so air conditioning is a sensible accommodation priority if you struggle to sleep in the heat. The sea is well suited to swimming at 26.6°C, though it will feel warm rather than provide a sharply cooling contrast to the air.

Mostly dry, but not sunshine all day

Rain is unlikely to dominate a typical October holiday, with about 2 rainy days across the month. That makes outdoor plans a reasonable bet, but it is not a promise of an entirely dry stay; rainfall can vary considerably between years. Sunshine averages about 6.4 hours within 11.6 hours of daylight, so expect some time without direct sun rather than clear skies from morning to evening. Keep your plans flexible if rain arrives, and use shade and sun protection during brighter spells. For a traveller choosing mainly on warmth and swimming conditions, the balance is favourable. If you dislike humid heat, the low rainfall alone is not a reason to choose October.