Your April weather guide
HotWeather in Boa Vista in April
April is a good time to visit Boa Vista if you want warm, dry weather without fierce heat. Daytime highs average 25°C, nights stay around 20°C and the sea is about 22°C, warm enough for swimming but not bath-like. For a UK traveller, it is a clear step up from spring at home. The catch is that April is not among the island's warmest months, so it suits comfortable warmth more than a search for intense heat.
Long-term climate averages for Sal Rei, not a forecast · 1991-2020
Boa Vista, month by month
Your snapshot
At a glance
The useful details for Sal Rei.
- Average daytime high
- 25.1°C
- 9 in 10 days stay below 27°C
- Average night-time low
- 20.2°C
- coldest 10% of nights: 19°C or lower
- Compared with London
- +11.6°C
- London averages 13.5°C in April
- Sea temperature
- 22.2°C
- year to year: 21°C to 23°C
- Sunshine per day (est.)
- 7.0h
- 56% of 12.4 h of daylight
- Rainy days (1 mm+)
- 0
- 1 mm over the month
- Humidity
- 73%
- Days over 25°C
- 49%
- none over 30°C
- Record high 1991-2020
- 29.6°C
- 2008-04-02
- Record low 1991-2020
- 17.6°C
- 1994-04-16
- Flight from London
- ≈ 6 h 12 min
- 4382 km, mid-haul (estimate for a direct flight)
Records are observed extremes within 1991-2020, not typical holiday conditions. Warm-day percentages are shares of days, not day counts.
How April compares
April is the 9th warmest month of the year in Boa Vista and ranks 45th of 134 destinations we compare for April - see where else is hot in April. Within Cape Verde it is 1st of 2 (Cape Verde in April). Against London's average high of 13.5°C in April, Boa Vista is 11.6°C warmer by day and 15.1°C warmer at night.
Daytime and night-time in April
The typical April day in Boa Vista peaks at 25.1°C, but that is an average: the warmest 10% of days reach 26.8°C or more. Roughly 1 in 2 days top 25°C. Nights average 20.2°C; one night in ten drops to 19.2°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest April day here reached 29.6°C (2008-04-02) and the coldest night 17.6°C (1994-04-16).
Rain in April
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 April was 1998 with 8 mm, the driest 1991 with 0 mm. Humidity averages 73%.
Sea temperature in April
The sea averages 22.2°C - warm enough to swim (22°c+). Depending on the year it ranges from 21.4°C to 22.9°C. For the warmest sea here, come in September (26.6°C).
Sunshine and daylight
Around 7.0 hours of sunshine a day (estimated from cloud cover), 12.4 hours of daylight: the sun rises about 06:17 and sets about 18:47 local time in mid-April. Average cloud cover is 43%.
Is April a good time to visit Boa Vista?
Yes - it is one of the better months: hot 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 days without extreme heat
Expect weather that suits light summer clothes during the day, rather than the layers you would usually need at home. Boa Vista's average daytime high is 25.1°C, compared with London's 13.5°C in April. That is a substantial change, but it does not mean every afternoon will be hot: 49% of days reach 25°C. Plan outdoor time around your comfort, with shade available at midday rather than assuming the moderate temperature makes sun protection unnecessary. Nights average 20.2°C, so evenings are generally mild. A light layer is a sensible option if you feel the cold when sitting outside after sunset.
Very little rain, but not constant sunshine
Rain is unlikely to be the reason you change your plans in April, with about 0 rainy days in a typical month. That makes it a practical choice if you want to spend much of the holiday outdoors without building the day around wet-weather alternatives. Dry does not mean continuously sunny, though: expect about 7 hours of sunshine within 12.4 hours of daylight. Leave room for cloud rather than expecting clear skies throughout the day. Humidity averages 73%, so loose, breathable clothing makes sense even though temperatures are not extreme. Keep water and sun protection handy, including when the sky is not completely clear.
Swimming weather with a cooler edge
The sea averages 22.2°C in April, which puts it in swimming territory, though it may feel cool as you get in. The year-to-year range is 21°C to 23°C, so your enjoyment will depend partly on how warm you like the water. April is a reasonable fit if you want swims alongside warm afternoons, rather than very warm water being the main reason for travelling. It is also one of Boa Vista's cooler months relative to the rest of the year, despite feeling warm by UK standards. Choose it for the balance of dry weather, mild evenings and manageable daytime heat.
A little perspective
Boa Vista through the year
April is highlighted. See how it compares with the rest of the year.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| January | 24.7°C | 20.1°C | 22.7°C | 5.9 | 4 | 0 | 42% |
| February | 24.5°C | 19.7°C | 21.9°C | 6.5 | 1 | 0 | 37% |
| Marchbest | 24.9°C | 19.7°C | 21.9°C | 7.4 | 1 | 0 | 41% |
| AprilSelected | 25.1°C | 20.2°C | 22.2°C | 7.0 | 1 | 0 | 49% |
| Maybest | 25.7°C | 20.8°C | 22.5°C | 8.0 | 0 | 0 | 72% |
| Junebest | 26.6°C | 21.7°C | 23.0°C | 8.6 | 0 | 0 | 96% |
| July | 27.8°C | 22.9°C | 24.3°C | 7.1 | 3 | 1 | 99% |
| August | 29.1°C | 24.5°C | 26.0°C | 6.1 | 22 | 3 | 100% |
| September | 29.4°C | 25.1°C | 26.6°C | 6.3 | 37 | 6 | 100% |
| October | 29.2°C | 24.6°C | 26.6°C | 6.4 | 18 | 2 | 100% |
| November | 27.9°C | 23.2°C | 25.7°C | 5.3 | 4 | 1 | 99% |
| December | 26.0°C | 21.6°C | 24.1°C | 5.5 | 3 | 0 | 80% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
Keep exploring
Similar in April
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
A little more detail
Boa Vista in April FAQs
Plain answers, grounded in the averages.
Is Boa Vista hot in April?
Boa Vista is hot in April: the average daytime high is 25.1°C and nights average 20.2°C. Roughly 1 in 2 April days reach 25°C.
Can you swim in the sea in Boa Vista in April?
The sea around Boa Vista averages 22.2°C in April, which is warm enough for most people to swim comfortably. Between 1991 and 2020 it ranged from 21°C to 23°C depending on the year.
How much does it rain in Boa Vista in April?
Boa Vista sees about 0 rainy days (1 mm or more) and 1 mm of rain in a typical April. The wettest April between 1991 and 2020 was 1998 (8 mm) and the driest was 1991 (0 mm).
How sunny is Boa Vista in April?
Boa Vista gets around 7.0 hours of sunshine a day in April out of 12.4 hours of daylight (estimated from average cloud cover).
How does Boa Vista compare with the UK in April?
Boa Vista is on average 11.6°C warmer than London by day in April (25.1°C against 13.5°C).
What is the hottest April on record in Boa Vista?
Between 1991 and 2020 the hottest April day in Boa Vista reached 29.6°C on 2008-04-02, and the coldest night dropped to 17.6°C on 1994-04-16.
Is April the best month to go to Boa Vista?
April is a strong choice for warm, dry weather, but June, May and March are the better-rated months overall. There is little reason to rule April out if comfortable daytime warmth matters more to you than choosing the warmest time of year.
How long is the flight from London?
The flight from London is about 6 hours 12 minutes, making Boa Vista a mid-haul option. For that journey, April offers a marked increase in daytime warmth compared with London, without the extreme heat some travellers prefer to avoid.
Will I need warm clothes in the evenings?
Heavy winter clothing is unlikely to be useful, with average night lows of 20.2°C. Pack a light layer for sitting outdoors, especially if you feel chilly easily: the coldest 10% of nights fall to 19.2°C or lower.
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Sal Rei. Sea temperature from the nearest 5 km sea cell, 0.8 km from that point. Sunshine hours are estimated from average cloud cover.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
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C