Saints Constantine and Helena Weather in October
In Saints Constantine and Helena, October brings pleasant daytime temperatures around 18°C (64°F), with nights cooling to 12°C (54°F). It is the wettest month of the year, so expect more rainfall than usual.
Rainfall in Saints Constantine and Helena in October
With the most rainfall occurring this month, it's practical to keep an umbrella handy for sudden downpours. Typically, you can expect about 5 days of rain this month, with 61 mm (2.4 in) on average. Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.
Temperature in Saints Constantine and Helena in October
October in Saints Constantine and Helena brings pleasant temperatures, with highs of 18°C (64°F) and nights around 12°C (54°F). The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 12°C (54°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Saints Constantine and Helena in October
You can expect a moderate amount of sunlight, with approximately 163 hours. This means a pleasant mix of sun and overcast.
Wind Speed in Saints Constantine and Helena in October
Average wind speeds reach 3 m/s (6 knots) in October, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.
Average water temperature in October
The water temperature is 18°C (64°F). It's not warm, but most people find it perfectly fine for a swim once they're in.For Saints Constantine and Helena itself, May, June, July, August and September generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bulgaria, check out our Saints Constantine and Helena's climate page.
Saints Constantine and Helena Temperature in October
Min Temperature
12°C (54°F)
Max Temperature
18°C (64°F)
Water Temperature
18°C (64°F) *
Chance of Rain
17%
Precipitation
61 mm (2.4 in)
Rainy days
5 days
Humidity
77% *
Windspeed
3 m/s (6 knots) *
Sunshine
163 hours *
Percentage Sunshine
49% *
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Saints Constantine and Helena typically drop from around 21°C (70°F) at the start of October to approximately 15°C (59°F) by the end. Nights are cool, with lows typically ranging from 6°C (43°F) to 11°C (52°F).
Average temperatures in October
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 October
Historical weather for Saints Constantine and Helena in October
Browse day-by-day weather records for Saints Constantine and Helena spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Saints Constantine and Helena historical weather extremes in October
Based on 28 years of weather observations (1997-2025), these are the most extreme conditions recorded in Saints Constantine and Helena.
- On October 21, 2023, temperatures climbed to 34°C (93°F), marking the warmest October day on record.
- On October 27, 2014, Saints Constantine and Helena saw its coldest October day with temperatures maxing out at 4°C (39°F).
- Saints Constantine and Helena registered its coldest October night on October 29, 2003, with temperatures dropping to -2°C (28°F).
Best Places in Bulgaria in October
Find out more about the weather in Bulgaria and which places have the best travel conditions in this month. See all of Bulgaria in October →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Saints Constantine and Helena in October
Comfortable temperatures call for an easy wardrobe in October. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Expect water temperatures of around 18°C (64°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Saints Constantine and Helena in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bulgaria, check out our Saints Constantine and Helena's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Saints Constantine and Helena climate overview or explore weather in Bulgaria.
