Sulmona in Summer
In summer (June, July and August), Sulmona sees average daytime highs around 23°C and overnight lows near 12°C, with 207 mm of rain over about 29 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 19°C in early June to 23°C by late August. The sky is clear or mostly clear about 54% of the time across summer, and the air most often feels dry.
Summer is Sulmona's best season of the year to visit on our travel score. For the whole year in context, see Sulmona's year-round climate.
- Avg daytime high
- 23°C
- warmest season of the year
- Avg overnight low
- 12°C
- Rainfall
- 207 mm
- 29 wet days
- Avg wind
- 4 km/h
- Travel score
- 7.3
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Sulmona in Summer
Over the season highs climb from about 19°C in early June to 23°C by late August.
A typical summer day in Sulmona reaches about 23°C and drops to 12°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Sulmona
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.
Sulmona 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° / -3° | 84 | 10.9 | 7.6 | 9.3 | 0.0 |
| Feb | 6° / -3° | 77 | 10.9 | 7.4 | 10.3 | 0.2 |
| Mar | 9° / -0° | 99 | 13.7 | 6.6 | 11.7 | 1.6 |
| Apr | 12° / 3° | 105 | 14.7 | 2.5 | 13.1 | 3.0 |
| May | 17° / 7° | 109 | 14.5 | 0.1 | 14.3 | 4.9 |
| Jun | 21° / 11° | 78 | 10.9 | 0 | 15 | 6.7 |
| Jul | 24° / 13° | 68 | 8.8 | 0 | 14.7 | 7.7 |
| Aug | 24° / 13° | 61 | 9.2 | 0 | 13.7 | 7.5 |
| Sep | 20° / 10° | 90 | 11.3 | 0 | 12.3 | 6.2 |
| Oct | 16° / 6° | 86 | 10.7 | 0.4 | 10.9 | 4.8 |
| Nov | 10° / 2° | 109 | 11.9 | 2.6 | 9.6 | 2.3 |
| Dec | 6° / -2° | 98 | 12.1 | 6.6 | 9 | 0.3 |
Cloud cover in Summer
The sky is clear or mostly clear about 54% of the time across summer.
Chance of precipitation in Summer
Sulmona gets around 207 mm of rain over 29 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 4 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 48 min in early June to 13 hours 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 6.5 kWh/m².
Is summer a good time to visit Sulmona?
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 one of the better times to visit Sulmona for general sightseeing.
What to pack for Sulmona in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Sulmona sees daytime highs around 23°C and nights near 12°C. Pack sun protection. Worth having: light clothes and rain gear. About 29 days see rain.
Sea temperature near Sulmona in Summer
The nearest coast averages about 24°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 52 km away) is warmest in August at about 26°C and coldest in February near 13°C.
It's comfortable for a long swim from May 31 to Oct 15 — about 4.5 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 14 | 13 | 13 | 14 | 18 | 22 | 25 | 26 | 23 | 20 | 17 | 15 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Warm | Warm | Refreshing | Cool | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 14 | Bracing |
| Feb | 13 | Bracing |
| Mar | 13 | Bracing |
| Apr | 14 | Bracing |
| May | 18 | Cool |
| Jun | 22 | Refreshing |
| Jul | 25 | Warm |
| Aug | 26 | Warm |
| Sep | 23 | Refreshing |
| Oct | 20 | Cool |
| Nov | 17 | Cool |
| Dec | 15 | Cool |
UV index in Sulmona 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 Sulmona peaks around July 16 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 5 | 7 | 9 | 10 | 9 | 6 | 4 | 2 | 1 |
| Level | Low | Moderate | High | High | Very high | Very high | Extreme | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | High |
| Apr | 5 | High |
| May | 7 | Very high |
| Jun | 9 | Very high |
| Jul | 10 | Extreme |
| Aug | 9 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Air quality in Sulmona 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 Sulmona is worst in April — around 19 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 16 | 17 | 18 | 19 | 16 | 15 | 14 | 14 | 12 | 14 | 13 | 13 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 16 | Moderate |
| Feb | 17 | Moderate |
| Mar | 18 | Moderate |
| Apr | 19 | Moderate |
| May | 16 | Moderate |
| Jun | 15 | Moderate |
| Jul | 14 | Moderate |
| Aug | 14 | Moderate |
| Sep | 12 | Moderate |
| Oct | 14 | Moderate |
| Nov | 13 | Moderate |
| Dec | 13 | Moderate |
Where is Sulmona?
Sulmona sits at 42.0°N, 13.9°E, 405 m above sea level, in Italy. The nearest listed city is Chieti, 39 km away.
Topography around Sulmona
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sulmona.
Within 3 km, the terrain around Sulmona has significant variations in elevation — a maximum elevation change of 272 m around an average of 416 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,541 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,846 m.
The land around Sulmona is covered by cropland (30%) and trees (29%) within 3 km, trees (56%) and grassland (31%) within 16 km, and trees (52%) and grassland (21%) within 80 km.
Italy travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F / L
- 230 V · 50 Hz
- Prices
- ≈ 69% of US
- price level, 2025
- GDP per capita
- $43,309
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 97%
- of population, 2024
- Homicide rate
- 0.6
- per 100k, 2023
- Road deaths
- 5.3
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 513
- 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 Sulmona (42.0495°, 13.9258°, elevation 405 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.