Trebinje Weather in May
Trebinje in May sees pleasant temperatures, with highs around 21°C (70°F) and overnight lows of 12°C (54°F). Rainfall is fairly high at around 106 mm (4.2 in) on average, so pack waterproofs just in case.
Rainfall in Trebinje in May
Typically, about 11 days will experience rainfall, with an average of 106 mm (4.2 in) 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 Trebinje in May
Daytime highs in Trebinje in May reach 21°C (70°F), with nights around 12°C (54°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights cool down to 12°C (54°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Trebinje in May
Expect sunny days throughout the month, with an estimated 266 hours of sunshine. This makes it a pleasant time to visit Trebinje.
Average water temperature in May
The water temperature is 19°C (66°F). It's not warm, but most people find it perfectly fine for a swim once they're in.If you prefer enjoying temperate temperatures and rain-free days, June, July and August typically offer 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 Bosnia and Herzegovina, check out our Trebinje's climate page.
Trebinje Temperature in May
Min Temperature
12°C (54°F)
Max Temperature
21°C (70°F)
Water Temperature
19°C (66°F) *
Chance of Rain
38%
Precipitation
106 mm (4.2 in)
Rainy days
11 days
Humidity
66% *
Sunshine
266 hours *
Percentage Sunshine
55% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Trebinje typically rise from around 20°C (68°F) at the start of May to approximately 23°C (73°F) by the end. Nights are cool, with lows typically ranging from 12°C (54°F) to 16°C (61°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Trebinje in May
Browse day-by-day weather records for Trebinje spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Trebinje historical weather extremes in May
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Trebinje.
- Trebinje recorded its highest May temperature of 33°C (91°F) on May 14, 1997.
- The coldest May day was on May 6, 1987, with a maximum of 12°C (54°F).
- Nighttime temperatures dropped to 5°C (41°F) on May 16, 1995, marking the coldest May night on record.
Best Places in Bosnia and Herzegovina in May
Find out more about the weather in Bosnia and Herzegovina and which places have the best travel conditions in this month. See all of Bosnia and Herzegovina in May →
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What to Wear in Trebinje in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. The water temperature sits at about 19°C (66°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Trebinje in May
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 Bosnia and Herzegovina, check out our Trebinje's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Trebinje climate overview or explore weather in Bosnia and Herzegovina.
