Gradačac in Summer
In summer (June, July and August), Gradačac sees average daytime highs around 28°C and overnight lows near 16°C, with 217 mm of rain over about 30 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Over the season highs climb from about 25°C in early June to 27°C by late August. The sky is clear or mostly clear about 48% of the time across summer, and the air most often feels humid.
Summer is Gradačac's best season of the year to visit on our travel score. For the whole year in context, see Gradačac's year-round climate.
- Avg daytime high
- 28°C
- warmest season of the year
- Avg overnight low
- 16°C
- Rainfall
- 217 mm
- 30 wet days
- Avg wind
- 7 km/h
- Travel score
- 6.4
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Gradačac in Summer
Over the season highs climb from about 25°C in early June to 27°C by late August.
A typical summer day in Gradačac reaches about 28°C and drops to 16°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Gradačac
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Gradačac weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 5° / -2° | 53 | 9.3 | 4.7 | 9 | 0.0 |
| Feb | 7° / -1° | 52 | 9.3 | 4.1 | 10.1 | 1.0 |
| Mar | 13° / 3° | 59 | 10.4 | 2.1 | 11.6 | 3.5 |
| Apr | 18° / 7° | 68 | 11.4 | 0.4 | 13.2 | 5.5 |
| May | 23° / 12° | 84 | 12.7 | 0 | 14.6 | 6.4 |
| Jun | 26° / 15° | 86 | 11.6 | 0 | 15.3 | 6.5 |
| Jul | 28° / 17° | 75 | 10.1 | 0 | 15 | 6.2 |
| Aug | 28° / 17° | 57 | 8.1 | 0 | 13.9 | 6.4 |
| Sep | 23° / 12° | 67 | 9.3 | 0 | 12.3 | 7.0 |
| Oct | 18° / 8° | 57 | 7.8 | 0 | 10.7 | 6.0 |
| Nov | 11° / 4° | 61 | 9.1 | 1.9 | 9.4 | 2.8 |
| Dec | 5° / -1° | 61 | 9.8 | 3.7 | 8.7 | 0.2 |
Cloud cover in Summer
The sky is clear or mostly clear about 48% of the time across summer.
Chance of precipitation in Summer
Gradačac gets around 217 mm of rain over 30 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 7 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 h 06 min in early June to 13 h 12 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.8 kWh/m².
Is summer a good time to visit Gradačac?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Gradačac for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Gradačac in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Gradačac sees daytime highs around 28°C and nights near 16°C. Pack light clothes and sun protection. Worth having: rain gear. About 30 days see rain.
UV index in Gradačac in Summer
Clear-sky midday UV across summer averages around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Gradačac peaks around July 24 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 5 | 7 | 7 | 8 | 8 | 8 | 5 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 7 | High |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 8 | Very high |
| Sep | 5 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Gradačac in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Gradačac is worst in April — around 16 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 10 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 11 | 12 | 15 | 16 | 15 | 15 | 13 | 14 | 11 | 12 | 11 | 10 |
| Level | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 12 | Good |
| Mar | 15 | Moderate |
| Apr | 16 | Moderate |
| May | 15 | Moderate |
| Jun | 15 | Moderate |
| Jul | 13 | Moderate |
| Aug | 14 | Moderate |
| Sep | 11 | Good |
| Oct | 12 | Good |
| Nov | 11 | Good |
| Dec | 10 | Good |
Where is Gradačac?
Gradačac sits at 44.9°N, 18.4°E, 139 m above sea level, in Bosnia and Herzegovina. The nearest listed city is Gračanica, 22 km away.
Topography around Gradačac
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Gradačac.
Within 3 km, the terrain around Gradačac has only modest variations in elevation — a maximum elevation change of 184 m around an average of 170 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 573 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,370 m.
The land around Gradačac is covered by trees (47%) and grassland (33%) within 3 km, trees (56%) and cropland (24%) within 16 km, and trees (58%) and cropland (29%) within 80 km.
Bosnia and Herzegovina travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 40% of US
- price level, 2025
- GDP per capita
- $10,382
- 2025
- Happiness
- 6.4 / 10
- World Happiness, 2025
- Safe drinking water
- 86%
- of population, 2024
- Homicide rate
- 1.2
- per 100k, 2023
- Road deaths
- 13.5
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- High
- EF EPI 591
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Gradačac (44.8785°, 18.4276°, elevation 139 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.