Chapel Hill in Summer
In summer (June, July and August), Chapel Hill sees average daytime highs around 87°F and overnight lows near 70°F, with 12.1 in of rain over about 39 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 87°F. The sky is clear or mostly clear about 27% of the time across summer, and the air most often feels oppressive.
Summer is Chapel Hill's 3rd-best season to visit on our travel score. For the whole year in context, see Chapel Hill's year-round climate.
- Avg daytime high
- 87°F
- warmest season of the year
- Avg overnight low
- 70°F
- Rainfall
- 12.1 in
- 39 wet days
- Avg wind
- 5 mph
- Travel score
- 4.5
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in Chapel Hill in Summer
Across summer, daytime highs hold fairly steady around 87°F.
A typical summer day in Chapel Hill reaches about 87°F and drops to 70°F overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Chapel Hill
Once humidity and wind are folded in, summer brings about 54 days that feel above 90°F and 0 that feel at or below 32°F.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Chapel Hill 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 (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 50° / 33° | 3.6 | 9.4 | 1.4 | 9.8 | 2.4 |
| Feb | 54° / 35° | 3.2 | 8.9 | 1.3 | 10.6 | 3.3 |
| Mar | 62° / 42° | 4.3 | 10.5 | 0.5 | 11.7 | 5.2 |
| Apr | 71° / 51° | 3.5 | 9.3 | 0 | 12.9 | 6.7 |
| May | 78° / 60° | 3.4 | 10.6 | 0 | 13.9 | 6.6 |
| Jun | 85° / 68° | 3.9 | 12 | 0 | 14.4 | 5.0 |
| Jul | 88° / 71° | 4.3 | 14.9 | 0 | 14.2 | 3.9 |
| Aug | 86° / 70° | 3.9 | 11.6 | 0 | 13.4 | 4.7 |
| Sep | 81° / 64° | 4.4 | 9.4 | 0 | 12.2 | 6.4 |
| Oct | 71° / 53° | 3.1 | 7.5 | 0 | 11.1 | 7.1 |
| Nov | 61° / 42° | 3.3 | 7.7 | 0.1 | 10.1 | 5.5 |
| Dec | 53° / 36° | 3.5 | 9.2 | 0.6 | 9.6 | 3.2 |
Cloud cover in Summer
The sky is clear or mostly clear about 27% of the time across summer.
Chance of precipitation in Summer
Chapel Hill gets around 12.1 in of rain over 39 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 5 mph across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 18 min in early June to 12 h 48 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 Chapel Hill?
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 Chapel Hill for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Chapel Hill in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Chapel Hill sees daytime highs around 87°F and nights near 70°F. Pack light clothes, rain gear and sun protection. About 39 days see rain.
UV index in Chapel Hill in Summer
Clear-sky midday UV across summer averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Chapel Hill peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 4 | 6 | 7 | 8 | 9 | 10 | 8 | 7 | 5 | 3 | 2 |
| Level | Moderate | Moderate | High | High | Very high | Very high | Very high | Very high | High | Moderate | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 6 | High |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 9 | Very high |
| Jul | 10 | Very high |
| Aug | 8 | Very high |
| Sep | 7 | High |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Air quality in Chapel Hill 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 Chapel Hill is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (November, 8 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) | 8 | 10 | 12 | 12 | 13 | 16 | 18 | 16 | 12 | 9 | 8 | 8 |
| Level | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 10 | Good |
| Mar | 12 | Moderate |
| Apr | 12 | Moderate |
| May | 13 | Moderate |
| Jun | 16 | Moderate |
| Jul | 18 | Moderate |
| Aug | 16 | Moderate |
| Sep | 12 | Good |
| Oct | 9 | Good |
| Nov | 8 | Good |
| Dec | 8 | Good |
Where is Chapel Hill?
Chapel Hill sits at 35.9°N, 79.1°W, 486 ft above sea level, in United States. The nearest listed city is Carrboro, 1.2 mi away.
Topography around Chapel Hill
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Chapel Hill.
Within 2 miles, the terrain around Chapel Hill has only modest variations in elevation — a maximum elevation change of 354 ft around an average of 433 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 696 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,227 ft.
The land around Chapel Hill is covered by trees (81%) within 2 miles, trees (83%) within 10 miles, and trees (79%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- 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 Chapel Hill (35.9132°, -79.0558°, elevation 486 ft), 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.