April weather forecast
Sveti Vlas, Bulgaria

April in Sveti Vlas is marked by a jump in the thermometer with daily highs of 15°C (59°F), introducing the substantial warmth of the spring season. The features of rainfall remain consistent, adding an occasional touch of freshness to the increasingly warmer days. The sea finally loses its winter chill, welcoming the rare brave swimmer. The extension in daylight continues, fuelling the town's active life. Thus, April in Sveti Vlas brings the true spirit of spring, marked by pleasant warmth and extended daytime.

Temperature

As Sveti Vlas welcomes April, the average high-temperature sees a rise, transitioning from a frosty 9°C (48.2°F) in March to a moderate 15°C (59°F). Sveti Vlas's average low-temperature during April nights is observed to be a frosty 7°C (44.6°F).

Rainfall

In April, the rain falls for 8 days. Throughout April, 49mm (1.93") of precipitation is accumulated. Throughout the year, there are 76 rainfall days, and 566mm (22.28") of precipitation is accumulated.

Sea temperature

In Sveti Vlas, Bulgaria, the average seawater temperature in April is 9.8°C (49.6°F).
Note: Caution: 9.8°C (49.6°F) temperatures below 10°C (50°F) during swimming can result in intense cold shock and quickened breathing.

Daylight

In Sveti Vlas, the average length of the day in April is 13h and 24min.
On the first day of April in Sveti Vlas, sunrise is at 06:50 and sunset at 19:35. On the last day of the month, sunrise is at 06:03 and sunset at 20:08 EEST.

Sunshine

The average sunshine in April in Sveti Vlas is 6h.

UV index

In Sveti Vlas, the average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 5 in April, converts into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Always opt for UVA and UVB-resistant sunglasses on radiant days.