Alcobaça weather in August

In August, Alcobaça sees average daytime highs of 25°C and overnight lows near 17°C, with 9 mm of rain across 2 wet days and about 13.6 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 71% 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 13 hours by month's end. Set against the rest of the year, August is Alcobaça's 2nd-clearest and 3rd-windiest month. For the whole year in context, see Alcobaça's year-round climate.

Daytime high
25°
1st warmest
Overnight low
17°
12th coldest
Rainfall
9 mm
2 wet days
Daylight
13 h 36 min
5:53 AM – 7:27 PM
Cloud cover
26%
2nd clearest
Wind
16 km/h
3rd windiest
Solar energy
6.66 kWh/m²
Travel score
8.7
out of 10

Alcobaça is city seat of Alcobaça municipality.

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 Alcobaça reaches about 25°C in the afternoon and slips back to 17°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 31°C. Set against its neighbours, August runs on par with July and about 2°C warmer than September.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12617
22617
32617
42617
52617
62617
72617
82617
92617
102617
112617
122617
132617
142617
152617
162617
172517
182517
192517
202517
212517
222517
232517
242517
252517
262517
272517
282517
292517
302517
312517

Alcobaça 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° / 7910.39.53.9
Feb15° / 588.310.44.5
Mar17° / 10°629.311.75.6
Apr18° / 11°6510.4135.9
May20° / 13°57814.16.8
Jun23° / 15°174.114.78.2
Jul25° / 16°72.314.58.8
Aug25° / 17°9213.68.7
Sep24° / 16°385.412.38.0
Oct21° / 14°889.910.96.6
Nov17° / 11°9011.49.85.2
Dec14° / 8210.19.34.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 71% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 14% of August, with mostly cloudy or overcast conditions the remaining 15%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18812
28812
38812
48713
58713
68713
78614
88614
98614
108614
118515
128515
138515
148515
158515
168515
178515
188515
198515
208515
218515
228515
238515
248515
258515
268515
278416
288416
298416
308317
318317

Chance of precipitation in August

Any precipitation

Alcobaça gets around 9 mm of rain over 2 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 7% and peaks near 9% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
16
26
36
46
56
66
76
86
96
106
116
126
136
146
156
166
176
186
196
206
216
227
237
247
257
268
278
288
298
309
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 45% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1645453
2745453
3745444
4844444
5844444
6943444
7943444
8942445
9942445
10942445
11942445
12942455
13942455
14842455
15842455
16842465
17742465
18742464
19742464
20743464
21743464
22743464
23743454
24844454
25844444
26944443
27944433
281044433
291044433
301044433
311044433

Wind in August

Winds average 16 km/h in August.

Across August, daily wind ranges from about 14 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3114light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 06 min at the start of August to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over August. Sunrise moves from 5:39 AM to 6:07 AM, and sunset from 7:45 PM to 7:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:397:45
214.15:407:44
314.05:417:43
414.05:427:42
514.05:437:41
613.95:437:40
713.95:447:39
813.95:457:37
913.85:467:36
1013.85:477:35
1113.85:487:34
1213.75:497:32
1313.75:507:31
1413.65:517:30
1513.65:527:28
1613.65:537:27
1713.55:547:26
1813.55:557:24
1913.45:567:23
2013.45:577:21
2113.45:587:20
2213.35:597:18
2313.36:007:17
2413.26:017:15
2513.26:027:14
2613.26:037:12
2713.16:047:11
2813.16:047:09
2913.06:057:08
3013.06:067:06
3113.06:077:05

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.66 kWh/m².

For context, solar energy here swings from a low near 1.94 kWh/m² to a high of 7.45 kWh/m² in July across the year — August's 6.66 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.2Intense
27.2Intense
37.1Intense
47.1Intense
57.1Intense
67.0Intense
77.0Intense
87.0Intense
96.9Intense
106.9Intense
116.9Intense
126.8Intense
136.8Intense
146.8Intense
156.7Intense
166.7Intense
176.6Intense
186.6Intense
196.5Intense
206.5Intense
216.5Intense
226.4Intense
236.4Intense
246.3Intense
256.3Intense
266.3Intense
276.2Intense
286.2Intense
296.1Intense
306.1Intense
316.0Intense
Planning a trip in August

Is August a good time to visit Alcobaça?

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

8.7
Sightseeing
2nd-best month of the year
8.0
Beach & pool
1st-best month of the year

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

What to pack for Alcobaça in August

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

In August, Alcobaça sees daytime highs around 25°C and nights near 17°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

Sea temperature near Alcobaça in August

The nearest coast averages about 19°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 15 km away) is warmest in August at about 19°C and coldest in February near 14°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

12°14°16°18°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May16Cool
Jun18Cool
Jul18Cool
Aug19Cool
Sep19Cool
Oct18Cool
Nov17Cool
Dec15Cool

UV index in Alcobaça in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Alcobaça 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 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 14UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar6High
Apr7Very high
May7High
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct5Moderate
Nov2Moderate
Dec2Low
Location & terrain

Where is Alcobaça?

Alcobaça sits at 39.6°N, 9.0°W, 38 m above sea level, in Portugal. The nearest listed city is Caldas da Rainha, 22 km away.

Topography around Alcobaça

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

Within 3 km, the terrain around Alcobaça has only modest variations in elevation — a maximum elevation change of 177 m around an average of 87 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 611 m; within 80 km, large variations in elevation — a maximum elevation change of 865 m.

The land around Alcobaça is covered by trees (53%) and grassland (32%) within 3 km, trees (49%) and grassland (29%) within 16 km, and trees (38%), water (27%) and grassland (24%) within 80 km.

3 km
177 m
16 km
611 m
80 km
865 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Caldas da Rainha 22 km · Marinha Grande 22 km · Monsanto 25 km · Leiria 26 km · Torres Novas 38 km · Peniche 41 km · Santarém 43 km · Entroncamento 45 km

Portugal travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E / F
230 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$32,082
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
95%
of population, 2024
Homicide rate
0.7
per 100k, 2022
Road deaths
8.2
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 612
Religion
Catholic 68%not applicable 13%no religion 12%no response 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 Alcobaça (39.5522°, -8.9775°, elevation 38 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).