Oia weather in August

In August, Oia sees average daytime highs of 25°C and overnight lows near 24°C, with 0 mm of rain across 0.1 wet days and about 13.4 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 99% of the time in August, and the air most often feels muggy.

Daylight stretches from about 13 h 54 min at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Oia's 2nd-clearest and 4th-windiest month. For the whole year in context, see Oia's year-round climate.

Daytime high
25°
1st warmest
Overnight low
24°
12th coldest
Rainfall
0 mm
0.1 wet days
Daylight
13 h 24 min
5:41 AM – 7:05 PM
Cloud cover
2%
2nd clearest
Wind
27 km/h
4th windiest
Solar energy
7.06 kWh/m²
Travel score
9.6
out of 10

Oia is village in Thira, Greece.

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical August day in Oia reaches about 25°C in the afternoon and slips back to 24°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 27°C. Set against its neighbours, August runs on par with July and about 2°C warmer than September.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12524
22524
32524
42524
52624
62624
72624
82624
92624
102624
112624
122624
132624
142624
152524
162524
172524
182524
192524
202524
212524
222524
232524
242524
252524
262524
272524
282524
292524
302524
312524

Oia 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
Jan14° / 13°6911.39.84.2
Feb14° / 13°589.310.64.3
Mar15° / 13°396.411.75.2
Apr17° / 15°153.112.96.6
May20° / 18°81.613.98.1
Jun23° / 22°10.314.49.5
Jul25° / 24°0014.29.7
Aug25° / 24°00.113.49.6
Sep24° / 23°51.112.29.4
Oct21° / 20°253.911.18.0
Nov18° / 17°366.210.16.7
Dec16° / 14°589.69.65.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 99% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 0% of August, with mostly cloudy or overcast conditions the remaining 0%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Chance of precipitation in August

Any precipitation

Oia gets around 0 mm of rain over 0.1 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 0% and peaks near 1% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
241
251
261
271
281
291
301
311

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 49% of days. Sticky, muggy-or-worse air turns up on roughly 94% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
100345511
200345511
300345511
400345511
500245512
600346502
700346492
800347482
900348472
1000349462
1100350452
1200351442
1300451432
1400451432
1500452422
1600552412
1700552412
1800553402
1900553402
2000652402
2100652402
2200652402
2300751402
2400850402
2501850401
2601950391
27011049381
28011149371
29021249361
30021349351
31131449331

Wind in August

Winds average 27 km/h in August.

Across August, daily wind ranges from about 26 km/h on the calmest days to 27 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
127breezy
227breezy
327breezy
427breezy
527breezy
627breezy
727breezy
827breezy
927breezy
1027breezy
1127breezy
1227breezy
1327breezy
1427breezy
1527breezy
1627breezy
1727breezy
1827breezy
1927breezy
2027breezy
2127breezy
2227breezy
2327breezy
2427breezy
2527breezy
2627breezy
2726breezy
2826breezy
2926breezy
3026breezy
3126breezy

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 54 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 60 minutes over August. Sunrise moves from 5:28 AM to 5:53 AM, and sunset from 7:21 PM to 6:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:287:21
213.85:297:20
313.85:307:19
413.85:317:18
513.85:317:17
613.75:327:16
713.75:337:15
813.75:347:14
913.65:357:13
1013.65:367:12
1113.65:367:11
1213.55:377:09
1313.55:387:08
1413.55:397:07
1513.45:407:06
1613.45:417:05
1713.45:417:03
1813.35:427:02
1913.35:437:01
2013.35:446:59
2113.25:456:58
2213.25:466:57
2313.25:466:55
2413.15:476:54
2513.15:486:53
2613.05:496:51
2713.05:506:50
2813.05:506:48
2912.95:516:47
3012.95:526:46
3112.95:536:44

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 7.06 kWh/m².

For context, solar energy here swings from a low near 2.21 kWh/m² to a high of 7.91 kWh/m² in June across the year — August's 7.06 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.5Intense
27.5Intense
37.4Intense
47.4Intense
57.4Intense
67.4Intense
77.3Intense
87.3Intense
97.3Intense
107.3Intense
117.2Intense
127.2Intense
137.2Intense
147.1Intense
157.1Intense
167.1Intense
177.0Intense
187.0Intense
197.0Intense
206.9Intense
216.9Intense
226.9Intense
236.8Intense
246.8Intense
256.7Intense
266.7Intense
276.7Intense
286.6Intense
296.6Intense
306.5Intense
316.5Intense
Planning a trip in August

Is August a good time to visit Oia?

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

9.6
Sightseeing
2nd-best month of the year
8.6
Beach & pool
1st-best month of the year

August is one of the better times to visit Oia for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Oia in August

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

In August, Oia sees daytime highs around 25°C and nights near 24°C. Pack sun protection. Worth having: light clothes and a windbreaker.

sun protectionlight clothesa windbreaker

Sea temperature near Oia in August

The nearest coast averages about 24°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 24°C and coldest in February near 16°C.

It's comfortable for a long swim from May 28 to Nov 12 — about 5.6 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb16Cool
Mar16Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul24Refreshing
Aug24Warm
Sep24Refreshing
Oct22Refreshing
Nov20Cool
Dec18Cool

UV index in Oia 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 Oia peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highHighModerateJul 15UV 9Jan 11UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5Moderate
Apr8Very high
May7Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Moderate
Location & terrain

Where is Oia?

Oia sits at 36.5°N, 25.4°E, 0 m above sea level, in Greece. The nearest listed city is Fira, 7.0 km away.

NaxosParosMykonosHeraklionRethymnoChaniaKos

Topography around Oia

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

Within 3 km, the terrain around Oia has significant variations in elevation — a maximum elevation change of 322 m around an average of 22 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 548 m; within 80 km, large variations in elevation — a maximum elevation change of 971 m.

The land around Oia is covered by water (72%) and grassland (21%) within 3 km, water (89%) within 16 km, and water (93%) within 80 km.

3 km
322 m
16 km
548 m
80 km
971 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Fira 7.0 km · Naxos 71 km · Paros 72 km · Mykonos 109 km · Heraklion 128 km · Rethymno 146 km · Chania 161 km · Kos 177 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 Oia (36.4626°, 25.3764°, elevation 0 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).