Boa Vista
- Day
- 24.9°C
- Sea
- 21.9°C
- Sun
- 7.4h
- Rain days
- 0
Your March weather guide
March is a good month for Cape Verde if you want dry weather and warmth without relying on very hot days. Country averages sit at 23°C by day and 20°C at night, with 0 rainy days making outdoor plans a reasonable bet. The main choice is how warm you like it: Boa Vista is the warmer option, while Sal suits travellers who prefer milder daytime conditions. Evenings stay mild rather than turning cold.
Long-term climate averages, not a forecast · 1991-2020
Cape Verde, month by month
Turn up the warmth
Ranked by average daytime high. The full comparison is in the table below.
All 2 places we track in Cape Verde, ordered by daytime high.
Daytime highs across Cape Verde in March run from 21.9°C (Sal) to 24.9°C (Boa Vista). Even in Boa Vista only 41% of days reach 25°C. Nights average 20.1°C; the coldest 10% of nights in Sal fall to 19°C or below.
Expect around 0 rainy days (1 mm or more) in March, with Boa Vista the driest (0 days) and Boa Vista the wettest (0 days). The wettest March at Boa Vista between 1991 and 2020 was 1998 with 10 mm; the driest was 1991 with 0 mm.
The sea averages 21.9°C around Cape Verde in March - warmest at Boa Vista (21.9°C). That is bracing: fine for a dip, cool for long swims.
Around 7.3 hours of sunshine a day on average, out of 11.9 hours of daylight (sunshine estimated from cloud cover).
March is the 11th warmest month of the twelve in Cape Verde. It is 0.2°C warmer than February and 0.3°C warmer in April. The hottest month here is September (28°C) and the coolest February (23°C).
Based on the averages: light layers - warm in the sun, cooler in the shade; swimwear if you do not mind a bracing 22°C sea.
Within 1.5°C of Cape Verde's March daytime average: Hanoi (25°C), Orlando (25°C), Cape Town (25°C, sea 17°C), Bahamas (24°C, sea 24°C), Hawaii (24°C, sea 24°C). See the full ranking for March.
Boa Vista is the better fit if warmth is your priority, with daytime temperatures averaging 25°C compared with Sal's 22°C. That makes Boa Vista more appealing for lying out, while Sal may feel more comfortable if you prefer being active without as much heat. On Boa Vista, 41% of days exceed 25°C, so allow for warmer spells rather than treating the average as a ceiling. The differences largely disappear after sunset and in the water: both destinations average 20°C at night and a sea temperature of 22°C. With 0 rainy days in both, there is no clear rain-related reason to favour either destination.
Pack light daytime clothes, swimwear and sun protection, with a light layer if you tend to feel cool when sitting outside in the evening. Average sunshine of 7.2 hours makes time outdoors a sensible focus, although it does not promise clear skies throughout your stay. Keep shade breaks in your plans, particularly around midday on warmer days in Boa Vista. The sea averages 22°C, which can feel refreshing rather than bath-warm; it suits travellers happy with a cooler swim more than those wanting very warm water. Rain is unlikely to be the main disruption, but an average of 0 rainy days is not a guarantee that every day will stay dry.
A little more detail
Plain answers, grounded in the averages.
Boa Vista is the warmest of the 2 places we track in Cape Verde in March with an average high of 24.9°C; Sal is the coolest at 21.9°C.
Not really: the warmest sea we track in Cape Verde in March is 21.9°C at Boa Vista, below the 22°C most people find comfortable.
Cape Verde averages 23°C by day, compared with London's 10°C. That is a clear change from cool weather to conditions suited to light daytime clothing, though Sal's 22°C average is milder than Boa Vista's 25°C.
The sea averages 22°C around both Boa Vista and Sal. Swimming is a reasonable part of a March trip if you enjoy refreshing water, but travellers who like a very warm sea may find it cool.
Both Boa Vista and Sal average 20°C at night, so heavy warm clothing is not suggested by the temperatures. A light layer is a sensible addition if you feel cool easily while sitting outdoors after sunset.
ERA5-Land climate reanalysis via Open-Meteo (11 km grid), 1991-2020
Averages computed from daily values at 2 destination points.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather