Weather in Boa Vista in July

How July compares

July is the 5th warmest month of the year in Boa Vista and ranks 83rd of 134 destinations we compare for July - see where else is hot in July. Within Cape Verde it is 1st of 2 (Cape Verde in July). Against London's average high of 21.8°C in July, Boa Vista is 6.0°C warmer by day and 9.4°C warmer at night.

Daytime and night-time in July

The typical July day in Boa Vista peaks at 27.8°C, but that is an average: the warmest 10% of days reach 29.3°C or more. About 99% of days top 25°C and 1 in 29 pass 30°C. Nights average 22.9°C; one night in ten drops to 21.8°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest July day here reached 31.4°C (2020-07-25) and the coldest night 20.5°C (2014-07-01).

Rain in July

Dry (3 rainy days or fewer): about 1 days with 1 mm or more, 3 mm in total. Year to year it varies a lot - the wettest July was 1996 with 16 mm, the driest 1991 with 0 mm. Humidity averages 75%.

Sea temperature in July

The sea averages 24.3°C - warm enough to swim (22°c+). Depending on the year it ranges from 23.7°C to 25.0°C. For the warmest sea here, come in September (26.6°C).

Sunshine and daylight

Around 7.1 hours of sunshine a day (estimated from cloud cover), 12.9 hours of daylight: the sun rises about 06:08 and sets about 19:08 local time in mid-July. Average cloud cover is 45%.

Is July 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.

Reliable warmth, but humid evenings

July’s heat is dependable rather than regularly extreme: 99% of days reach 25°C, while only 3% reach 30°C. That makes it a good fit if you want warmth without choosing somewhere with much higher daytime temperatures. Humidity averages 75%, though, so the temperature alone does not tell the whole comfort story. Plan more active time for earlier or later in the day, and leave room for shade around midday. Pack loose, breathable clothes rather than heavy layers. With average night lows of 23°C, evenings remain warm, and a room with cooling is a sensible priority if you struggle to sleep in the heat.

Little rain, but not uninterrupted sunshine

Rain is unlikely to dictate your plans in July, with about 1 rainy day during the month. You can reasonably plan around being outdoors rather than building the trip around wet-weather alternatives, although dry averages are not a guarantee for your stay. Sunshine averages 7.1 hours a day within 12.9 hours of daylight, so do not read the low rainfall as a promise of clear skies throughout the day. There is still plenty of daylight to shift activity away from the hottest part of the afternoon. Sun protection and access to shade deserve more space in your planning than substantial waterproof clothing.

A comfortable month for sea swimming

The sea averages 24.3°C in July, putting it comfortably in the swimming category rather than the bracing category. The year-to-year range is 24°C to 25°C, so the water temperature is a fairly dependable reason to choose this month. It suits a holiday built around swimming and unhurried time outdoors, especially if cold water usually puts you off. Sea temperature does not establish how calm or safe the water will be, so follow local advice before entering. For the journey, the flight from London is about 6 h 12 min: allow for a mid-haul trip rather than a quick hop.