Weather in Boa Vista in March

How March compares

March is the 10th warmest month of the year in Boa Vista and ranks 39th of 134 destinations we compare for March - see where else is hot in March. Within Cape Verde it is 1st of 2 (Cape Verde in March). Against London's average high of 10.5°C in March, Boa Vista is 14.4°C warmer by day and 16.4°C warmer at night.

Daytime and night-time in March

The typical March day in Boa Vista peaks at 24.9°C, but that is an average: the warmest 10% of days reach 27.1°C or more. Roughly 1 in 2 days top 25°C and 1 in 1000 pass 30°C. Nights average 19.7°C; one night in ten drops to 18.7°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest March day here reached 30.3°C (2004-03-19) and the coldest night 16.4°C (2018-03-01).

Rain in March

Dry (3 rainy days or fewer): about 0 days with 1 mm or more, 1 mm in total. Year to year it varies a lot - the wettest March was 1998 with 10 mm, the driest 1991 with 0 mm. Humidity averages 71%.

Sea temperature in March

The sea averages 21.9°C - bracing (18-22°c). Depending on the year it ranges from 20.9°C to 22.7°C. For the warmest sea here, come in September (26.6°C).

Sunshine and daylight

Around 7.4 hours of sunshine a day (estimated from cloud cover), 11.9 hours of daylight: the sun rises about 06:39 and sets about 18:42 local time in mid-March. Average cloud cover is 38%.

Is March a good time to visit Boa Vista?

Yes - it is one of the better months: warm days, little rain and long sunny days. 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.

Warm afternoons, with a layer for evenings

Pack mainly light clothing, but leave room for a light jumper or an extra layer after dark. The average night is mild, although the cooler nights can fall to 18.7°C or below, so sitting outside may feel less summery than the afternoon. Days reach 25°C around 41% of the time: expect comfortable warmth, not guaranteed hot weather. The warmer days reach 27.1°C or more, making shade a sensible option at midday. March is among Boa Vista's cooler months, which is a benefit if strong heat puts you off. It suits travellers who want to spend time outdoors without choosing the island's hottest period.

Very little rain, but swimming is the compromise

Rain is unlikely to shape your plans, with about 0 rainy days in a typical March. That makes this a good month for keeping outdoor plans flexible rather than building the holiday around wet-weather alternatives. There are about 7.4 hours of sunshine within 11.9 hours of daylight, so dry weather does not mean uninterrupted sun. Pack sun protection, but do not expect every daylight hour to be clear. The bigger consideration is the water: the sea averages 21.9°C, with a year-to-year range of 21°C to 23°C. If you dislike a cool first dip or prefer lingering in warm water, March is a less convincing choice for a swimming-led holiday.