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Byala Weather in December

December in Byala averages 9°C (48°F) during the day and 3°C (37°F) at night. Quite a bit of rainfall is typical this month, with around 63 mm (2.5 in) on average. An umbrella is a good idea.

Rainfall in Byala in December

Records from the past 30 years suggest around 8 days of rain, with 63 mm (2.5 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Byala in December

In December, Byala sees low temperatures, with highs of 9°C (48°F). Nights drop to around 3°C (37°F). December is typically considered a winter month. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. With lows around 3°C (37°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Byala in December

The month experiences a moderate amount of sunlight, with 103 hours of sunshine. This provides a nice balance between sunshine and clouds.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August and September typically offer the best weather for Byala.

Byala Temperature in December

Min Temperature
3°C (37°F)
Max Temperature
9°C (48°F)
Chance of Rain
26%
Precipitation
63 mm (2.5 in)
Rainy days
8 days
Humidity
81% *
Sunshine
103 hours *
Percentage Sunshine
*
* Data from: Sunny Beach, Bulgaria (25 KM, 15 Miles).

Byala Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Byala - and find the best time to visit.

Daily Historical Temperatures

49-year average (1976-2025)

Based on our historical records, temperatures in Byala typically stay consistent throughout December, with daily highs averaging around 9°C (48°F). Nights are cold, with lows typically ranging from -1°C (30°F) to 3°C (37°F).

Average temperatures in December

Daily Historical Precipitation

49-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in December

Historical weather records for Byala in December

Browse day-by-day weather records for Byala spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Byala historical weather extremes in December

Based on weather observations in Byala between 1997 and 2025, these are the recorded extremes during December.

  • Byala recorded its highest December temperature of 20°C (68°F) on December 2, 2023.
  • The coldest night in December in Byala was on December 19, 1997, with a minimum of -14°C (7°F).

Best Places in Bulgaria in December

Find out more about the weather in Bulgaria and which places have the best travel conditions in this month. See all of Bulgaria in December →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Byala in December

We recommend to layer up for chilly conditions in Byala in December. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Rain is likely on several days, so bring a good rain jacket. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Byala in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    5/10
  • Cycling
    4/10
  • Walking
    4/10
  • Camping
    4/10
  • Outdoor sports
    4/10

Byala 3-Day Forecast

More climate data for Byala

Popular in December

Where to go in December - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.