Weather in Sunny Beach in March

How March compares

March is the 9th warmest month of the year in Sunny Beach and ranks 128th of 134 destinations we compare for March - see where else is hot in March. Against London's average high of 10.5°C in March, Sunny Beach is 0.3°C warmer by day and 1.0°C warmer at night.

Daytime and night-time in March

The typical March day in Sunny Beach peaks at 10.8°C, but that is an average: the warmest 10% of days reach 16.9°C or more. Days over 25°C are rare. Nights average 4.3°C; one night in ten drops to 0.2°C or lower, so pack a layer for evenings - it is genuinely cool after dark. Between 1991 and 2020 the hottest March day here reached 24.8°C (2001-03-26) and the coldest night -9.8°C (2018-03-01).

Rain in March

Wet (more than 8 rainy days): about 9 days with 1 mm or more, 53 mm in total. Year to year it varies a lot - the wettest March was 2018 with 99 mm, the driest 2012 with 11 mm. Humidity averages 76%.

Sea temperature in March

The sea averages 6.7°C - too cold for most (under 18°c). Depending on the year it ranges from 5.8°C to 7.8°C. For the warmest sea here, come in August (25.3°C).

Sunshine and daylight

Around 4.6 hours of sunshine a day (estimated from cloud cover), 11.7 hours of daylight: the sun rises about 06:21 and sets about 18:15 local time in mid-March. Average cloud cover is 60%.

Is March a good time to visit Sunny Beach?

March is not the strongest month here: cool days and frequent rain. The best months for Sunny Beach on our scoring are August, July, June; months averaging 25°C or more: Jul, Aug.

Expect coat weather, not reliable spring warmth

The useful comparison is with home: Sunny Beach is only 0.3°C warmer than London by average daytime high in March. That makes it hard to justify the trip on warmth alone. Milder spells are possible, with the warmest 10% of days reaching 16.9°C or more, but those are a bonus rather than a sensible packing assumption. Bring layers, a proper jacket and closed shoes, with something warmer for evenings. The coldest 10% of nights reach 0.2°C or lower, so light holiday clothes alone are a poor fit. Plan outdoor time for the warmer part of the day rather than expecting comfortable evenings outside.

Keep outdoor plans flexible

Rain is a practical catch in March, with about 9 days receiving measurable rainfall. A waterproof outer layer is more useful than packing only for dry strolls, and shoes that cope with wet ground will make changeable days easier. There is still scope to spend time outside: average sunshine is about 4.6 hours a day within 11.7 hours of daylight. The distinction matters, because a long enough day for relaxed plans does not mean clear skies throughout. Keep your schedule loose enough to use brighter spells, and avoid making every day depend on sitting outdoors. This suits travellers who can accept weather-led plans.

Treat the coast as somewhere to walk, not swim

At an average of 6.7°C, the sea is cold rather than merely bracing. Even the warmer end of its March range, 8°C, is far below the 22°C threshold for comfortable holiday swimming. If getting into the water is central to your break, March does not match that brief. The more realistic appeal is time beside the sea, dressed for cool conditions, without expecting sunbathing weather. For a UK traveller, the flight from London is short-haul at about 3 h 36 min, but the journey buys little extra daytime warmth. June, July and August are better months to consider for a weather-focused holiday here.