Weather in Sunny Beach in July

How July compares

July is the 2nd warmest month of the year in Sunny Beach and ranks 96th of 134 destinations we compare for July - see where else is hot in July. Against London's average high of 21.8°C in July, Sunny Beach is 5.4°C warmer by day and 6.8°C warmer at night.

Daytime and night-time in July

The typical July day in Sunny Beach peaks at 27.2°C, but that is an average: the warmest 10% of days reach 29.9°C or more. About 86% of days top 25°C and 1 in 10 pass 30°C. Nights average 20.3°C; one night in ten drops to 18.1°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest July day here reached 36.4°C (2000-07-09) and the coldest night 14.5°C (2011-07-04).

Rain in July

Some rain (4-8 rainy days): about 7 days with 1 mm or more, 42 mm in total. Year to year it varies a lot - the wettest July was 1991 with 112 mm, the driest 2007 with 0 mm. Humidity averages 71%.

Sea temperature in July

The sea averages 24.3°C - warm enough to swim (22°c+). Depending on the year it ranges from 23.3°C to 25.4°C. For the warmest sea here, come in August (25.3°C).

Sunshine and daylight

Around 10.8 hours of sunshine a day (estimated from cloud cover), 14.8 hours of daylight: the sun rises about 05:45 and sets about 20:45 local time in mid-July. Average cloud cover is 27%.

Is July a good time to visit Sunny Beach?

Yes - it is one of the better months: hot days, manageable rain and long sunny days. The best months for Sunny Beach on our scoring are August, July, June; months averaging 25°C or more: Jul, Aug.

Hot days, with little need for warm evening clothes

Expect warm weather to be the norm rather than a bonus: 86% of July days reach 25°C. That makes lightweight, breathable clothing a sensible starting point, with shade breaks around midday if heat tires you out. Days reaching 30°C account for 10%, so that level of heat is possible without being the daily expectation. Humidity averages 71%, which can make the warmth feel less comfortable, particularly if you are active. Evenings generally call for light clothes, although a thin layer is useful: the coldest 10% of nights fall to 18.1°C or below. Choose accommodation where you can cool down comfortably.

A comfortable sea and plenty of daylight

The sea is a strong reason to choose July. At an average of 24.3°C, it falls comfortably into swimming territory rather than being a bracing dip. The year-to-year range of 23°C to 25°C also suggests that a cooler July need not mean cold water, though personal comfort varies. With about 10.8 hours of sunshine out of 14.8 hours of daylight, there is plenty of scope to spread your beach time beyond midday. Earlier or later outings are a sensible option if you dislike the strongest heat. Pack suncream, a hat and something light to cover up with, rather than planning to spend every sunny hour exposed.

Allow for rain rather than expecting an entirely dry week

July is a reasonable choice for a beach-focused holiday, but not a promise of uninterrupted sunshine. About 7 days during the month have measurable rain, so keep your plans flexible and pack a light waterproof that will not feel cumbersome in warm weather. That monthly figure does not tell you how rain will fall during your stay, or how long any wet spell will last. Avoid building the holiday around every day being suitable for lounging outside. If your priority is swimming and warmth, the balance looks favourable; if even occasional rain would spoil the trip, July still carries that risk.