Cagliari weather in August

In August, Cagliari sees average daytime highs of 30°C and overnight lows near 21°C, with 8 mm of rain across 1.8 wet days and about 13.5 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 31°C in the first days to 29°C by the end. The sky is clear or mostly clear about 85% of the time in August, and the air most often feels humid.

Daylight stretches from about 14 h 06 min at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Cagliari's 2nd-clearest and 12th-windiest month. For the whole year in context, see Cagliari's year-round climate.

Daytime high
30°
1st warmest
Overnight low
21°
12th coldest
Rainfall
8 mm
1.8 wet days
Daylight
13 h 30 min
5:41 AM – 7:14 PM
Cloud cover
16%
2nd clearest
Wind
11 km/h
12th windiest
Solar energy
6.67 kWh/m²
Travel score
6.5
out of 10
Air quality
Elevated
PM2.5 19.2 µg/m³ · 2019

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 31°C in the first days to 29°C by the end.

A typical August day in Cagliari reaches about 30°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 33°C. Set against its neighbours, August runs on par with July and about 4°C warmer than September.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13121
23121
33121
43121
53121
63121
73121
83121
93121
103121
113021
123021
133021
143021
153021
163021
173021
183021
193021
203021
213021
223021
233021
243021
253021
263021
272921
282920
292920
302920
312920

Cagliari weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan13° / 376.79.64.1
Feb14° / 397.410.54.2
Mar16° / 467.511.75.4
Apr18° / 11°488.4136.3
May22° / 14°335.614.17.7
Jun27° / 18°102.114.78.2
Jul30° / 21°20.514.57.0
Aug30° / 21°81.813.56.5
Sep26° / 19°314.912.37.7
Oct23° / 15°436.1117.6
Nov18° / 12°629.19.85.9
Dec15° / 548.69.34.5

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 85% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 9% of August, with mostly cloudy or overcast conditions the remaining 7%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1955
2955
3955
4955
5955
6955
7955
8955
9955
10964
11964
12946
13946
14955
15955
16955
17946
18946
19946
20946
21946
22937
23937
24937
25928
26919
27919
289010
298911
308812
318713

Chance of precipitation in August

Any precipitation

Cagliari gets around 8 mm of rain over 1.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 6% and peaks near 9% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
13
23
33
44
54
64
74
85
95
105
115
125
136
146
156
166
176
186
196
206
216
227
237
247
257
267
278
288
298
308
319

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the humid band about 40% of days. Sticky, muggy-or-worse air turns up on roughly 43% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
101348362
201348363
301347373
411346373
511345383
611344384
711443384
811442394
911442394
1011441404
1111440404
1221440414
1321439414
1421439423
1521438423
1611538433
1711538433
1811538433
1911538433
2011637433
2111637423
2211737423
2311837413
2411836404
2521936394
2622036384
2722136374
2822236364
2922336354
3032436334
3132536323

Wind in August

Winds average 11 km/h in August, the calmest month.

Across August, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 06 min at the start of August to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over August. Sunrise moves from 5:27 AM to 5:55 AM, and sunset from 7:32 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:277:32
214.05:287:31
314.05:297:30
414.05:307:29
513.95:317:28
613.95:327:27
713.95:337:25
813.85:347:24
913.85:357:23
1013.85:357:22
1113.75:367:21
1213.75:377:19
1313.75:387:18
1413.65:397:17
1513.65:407:15
1613.55:417:14
1713.55:427:13
1813.55:437:11
1913.45:447:10
2013.45:457:09
2113.45:467:07
2213.35:477:06
2313.35:487:04
2413.25:497:03
2513.25:507:01
2613.25:517:00
2713.15:526:58
2813.15:526:57
2913.05:536:55
3013.05:546:53
3112.95:556:52

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.67 kWh/m².

For context, solar energy here swings from a low near 2 kWh/m² to a high of 7.54 kWh/m² in July across the year — August's 6.67 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.2Intense
27.2Intense
37.1Intense
47.1Intense
57.0Intense
67.0Intense
77.0Intense
87.0Intense
96.9Intense
106.9Intense
116.8Intense
126.8Intense
136.8Intense
146.8Intense
156.7Intense
166.7Intense
176.6Intense
186.6Intense
196.6Intense
206.5Intense
216.5Intense
226.4Intense
236.4Intense
246.3Intense
256.3Intense
266.3Intense
276.2Intense
286.2Intense
296.1Intense
306.0Intense
316.0Bright
Planning a trip in August

Is August a good time to visit Cagliari?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.5
Sightseeing
6th-best month of the year
8.9
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Cagliari for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Cagliari in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Cagliari sees daytime highs around 30°C and nights near 21°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Cagliari in August

The nearest coast averages about 26°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 8 to Nov 2 — about 4.9 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun21Refreshing
Jul24Warm
Aug26Warm
Sep24Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Cagliari in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cagliari peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 16UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb4Moderate
Mar5High
Apr6High
May7High
Jun7Very high
Jul10Very high
Aug7High
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Cagliari in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Cagliari is worst in March — around 23 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 13 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Cagliari's WHO annual average of 19.2 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2223 µg/m³Dec 1514 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb20Moderate
Mar23Moderate
Apr23Moderate
May22Moderate
Jun21Moderate
Jul19Moderate
Aug19Moderate
Sep19Moderate
Oct19Moderate
Nov15Moderate
Dec13Moderate
Location & terrain

Where is Cagliari?

Cagliari sits at 39.2°N, 9.1°E, 6 m above sea level, in Italy. The nearest listed city is Monserrato, 4.0 km away.

Topography around Cagliari

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cagliari.

Within 3 km, the terrain around Cagliari has only modest variations in elevation — a maximum elevation change of 117 m around an average of 19 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 667 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,454 m.

The land around Cagliari is covered by artificial surfaces (56%) and water (23%) within 3 km, water (39%) and grassland (26%) within 16 km, and water (46%) and trees (26%) within 80 km.

3 km
117 m
16 km
667 m
80 km
1,454 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Monserrato 4.0 km · Selargius 5.0 km · Sestu 8.0 km · Sinnai 11 km · Quartu Sant'Elena 11 km · Assemini 12 km · Iglesias 51 km · Carbonia 52 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
Christian 81%unaffiliated 13%Muslim 5%other 1%

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 Cagliari (39.2305°, 9.1192°, elevation 6 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).