Acharnés weather in August

In August, Acharnés sees average daytime highs of 33°C and overnight lows near 22°C, with 4 mm of rain across 1.1 wet days and about 13.5 hours of daylight. It is the 2nd-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 33°C in the first days to 32°C by the end. The sky is clear or mostly clear about 94% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 14 hours at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Acharnés's 1st-clearest and 1st-windiest month. For the whole year in context, see Acharnés's year-round climate.

Daytime high
33°
2nd warmest
Overnight low
22°
11th coldest
Rainfall
4 mm
1.1 wet days
Daylight
13 h 30 min
5:45 AM – 7:14 PM
Cloud cover
10%
1st clearest
Wind
11 km/h
1st windiest
Solar energy
6.72 kWh/m²
Travel score
4.9
out of 10

Acharnés is northern suburb of Athens, Greece.

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 33°C in the first days to 32°C by the end.

A typical August day in Acharnés reaches about 33°C in the afternoon and slips back to 22°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 36°C. Set against its neighbours, August runs on par with July and about 4°C warmer than September.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13323
23323
33323
43323
53323
63323
73323
83323
93323
103323
113322
123322
133322
143322
153322
163322
173322
183322
193322
203322
213322
223322
233322
243222
253221
263221
273221
283221
293221
303221
313121

How August really feels in Acharnés

Once humidity and wind are folded in, August averages 27 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
27
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Acharnés weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan13° / 527.30.69.73.7
Feb14° / 477.20.610.54.2
Mar16° / 496.40.211.75.8
Apr21° / 11°295.40137.3
May26° / 15°234.90147.9
Jun31° / 20°112.5014.65.8
Jul33° / 22°61.3014.44.7
Aug33° / 22°41.1013.54.9
Sep29° / 19°152.5012.37.1
Oct24° / 15°273.90118.1
Nov18° / 11°456.609.96.4
Dec14° / 587.80.49.44.3

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 94% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 5% of August, with mostly cloudy or overcast conditions the remaining 1%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
27982
28973
29973
30973
31973

Chance of precipitation in August

Any precipitation

Acharnés gets around 4 mm of rain over 1.1 wet days in August, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 4% and peaks near 5% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
15
25
35
45
54
64
74
84
94
104
114
124
134
144
154
163
173
183
193
203
213
223
233
243
253
264
274
284
294
304
315

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 43% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11839367
21739368
31640378
41540378
51541378
61541377
71442377
81442377
91443366
101443366
111544366
121544355
131545355
141645355
151645344
161746344
171746343
181846333
191846333
201945333
212045333
222045333
232144323
242144323
252243323
262242323
272342323
282441323
292540323
302540313
312639314

Wind in August

Winds average 11 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 10 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
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 hours 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 66 minutes over August. Sunrise moves from 5:31 AM to 5:58 AM, and sunset from 7:31 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.05:317:31
214.05:327:30
313.95:337:29
413.95:347:28
513.95:357:27
613.85:367:26
713.85:377:25
813.85:377:24
913.75:387:22
1013.75:397:21
1113.75:407:20
1213.65:417:19
1313.65:427:18
1413.65:437:16
1513.55:447:15
1613.55:457:14
1713.45:457:12
1813.45:467:11
1913.45:477:10
2013.35:487:08
2113.35:497:07
2213.35:507:06
2313.25:517:04
2413.25:527:03
2513.15:537:01
2613.15:547:00
2713.15:546:58
2813.05:556:57
2913.05:566:55
3012.95:576:54
3112.95:586:52

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.72 kWh/m².

For context, solar energy here swings from a low near 1.9 kWh/m² to a high of 7.5 kWh/m² in June across the year — August's 6.72 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.2Intense
27.1Intense
37.1Intense
47.1Intense
57.0Intense
67.0Intense
77.0Intense
87.0Intense
96.9Intense
106.9Intense
116.9Intense
126.9Intense
136.8Intense
146.8Intense
156.8Intense
166.7Intense
176.7Intense
186.7Intense
196.6Intense
206.6Intense
216.6Intense
226.5Intense
236.5Intense
246.5Intense
256.4Intense
266.4Intense
276.3Intense
286.3Intense
296.2Intense
306.2Intense
316.1Intense
Planning a trip in August

Is August a good time to visit Acharnés?

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

4.9
Sightseeing
8th-best month of the year
8.4
Beach & pool
3rd-best month of the year

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

What to pack for Acharnés in August

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

In August, Acharnés sees daytime highs around 33°C and nights near 22°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Acharnés 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 at the nearest coast (about 25 km away) is warmest in August at about 26°C and coldest in February near 15°C.

It's comfortable for a long swim from May 28 to Nov 16 — about 5.7 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb15Bracing
Mar15Bracing
Apr16Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec17Cool

UV index in Acharnés in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks 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 Acharnés peaks around July 13 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highHighModerateJul 13UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr7Very high
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep7Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Acharnés 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 Acharnés is worst in August — around 19 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodAug 1418 µg/m³Dec 158 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar15Moderate
Apr14Moderate
May13Moderate
Jun11Good
Jul14Moderate
Aug19Moderate
Sep9Good
Oct9Good
Nov9Good
Dec7Good
Location & terrain

Where is Acharnés?

Acharnés sits at 38.1°N, 23.7°E, 171 m above sea level, in Greece. The nearest listed city is Áno Liósia, 3.0 km away.

Topography around Acharnés

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

Within 3 km, the terrain around Acharnés has significant variations in elevation — a maximum elevation change of 300 m around an average of 185 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,398 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,724 m.

The land around Acharnés is covered by artificial surfaces (73%) within 3 km, trees (38%) and artificial surfaces (35%) within 16 km, and water (51%) and trees (22%) within 80 km.

3 km
300 m
16 km
1,398 m
80 km
1,724 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Áno Liósia 3.0 km · Metamórfosi 3.0 km · Kamaterón 4.0 km · Irákleio 4.0 km · Néa Filadélfeia 5.0 km · Néa Ionía 6.0 km · Péfki 6.0 km · Ágioi Anárgyroi 6.0 km

Greece travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$26,948
2025
Happiness
5.7 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
0.8
per 100k, 2023
Road deaths
8.3
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 592
Religion
other 3%Muslim 2%

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 Acharnés (38.0833°, 23.7333°, elevation 171 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).