Charneca de Caparica weather in September

In September, Charneca de Caparica sees average daytime highs of 21°C and overnight lows near 19°C, with 26 mm of rain across 3.6 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 67% of the time in September, and the air most often feels humid.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Charneca de Caparica's 4th-clearest and 12th-windiest month. For the whole year in context, see Charneca de Caparica's year-round climate.

Daytime high
21°
3rd warmest
Overnight low
19°
11th coldest
Rainfall
26 mm
3.6 wet days
Daylight
12 h 12 min
6:24 AM – 6:39 PM
Cloud cover
32%
4th clearest
Wind
18 km/h
12th windiest
Solar energy
5.37 kWh/m²
Travel score
7.9
out of 10

Charneca de Caparica is human settlement in Portugal.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 21°C through the month.

A typical September day in Charneca de Caparica reaches about 21°C in the afternoon and slips back to 19°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 22°C. Set against its neighbours, September runs on par with August and about 1°C warmer than October.

15°18°20°23°25°151015202530
Avg high (°C)Avg low (°C)
12119
22119
32119
42119
52119
62119
72119
82119
92119
102119
112119
122119
132119
142119
152119
162119
172118
182018
192018
202018
212018
222018
232018
242018
252018
262018
272018
282018
292018
302018

Charneca de Caparica weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan14° / 12°709.19.64.5
Feb14° / 12°537.310.54.6
Mar15° / 13°517.411.75.1
Apr16° / 14°467.5135.5
May18° / 15°354.714.16.8
Jun19° / 17°71.414.68.0
Jul21° / 18°10.314.48.7
Aug21° / 19°30.613.58.7
Sep21° / 19°263.612.37.9
Oct19° / 17°738.6116.6
Nov17° / 15°829.59.95.6
Dec15° / 13°829.69.44.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 67% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18911
28812
38812
48614
58614
68515
78515
88317
98317
108317
118218
128218
138119
148119
158020
168020
177921
187822
197822
207723
217723
227624
237624
247525
257525
267426
277426
287327
297129
307129

Chance of precipitation in September

Any precipitation

Charneca de Caparica gets around 26 mm of rain over 3.6 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 11% and peaks near 17% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
14
24
34
45
55
65
76
86
97
108
118
129
1310
1411
1511
1612
1713
1814
1914
2015
2116
2216
2317
2417
2517
2617
2717
2817
2917
3017

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 59% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11197010
21206910
31206910
41216810
51226710
61226710
71236610
82246311
92246311
102256310
113266110
123266110
133276010
144285810
154285810
16429589
17530569
18530569
19630568
20631558
21631567
22631567
23732547
24732547
25733537
26833527
27834517
28934507
291035497
301035487

Wind in September

Winds average 18 km/h in September, the calmest month.

Across September, daily wind ranges from about 18 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over September. Sunrise moves from 6:10 AM to 6:37 AM, and sunset from 7:03 PM to 6:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:107:03
212.86:117:01
312.86:127:00
412.86:136:58
512.76:146:57
612.76:156:55
712.66:166:53
812.66:166:52
912.56:176:50
1012.56:186:48
1112.56:196:47
1212.46:206:45
1312.46:216:43
1412.36:226:42
1512.36:236:40
1612.26:246:39
1712.26:256:37
1812.26:266:35
1912.16:266:34
2012.16:276:32
2112.06:286:30
2212.06:296:29
2311.96:306:27
2411.96:316:25
2511.96:326:24
2611.86:336:22
2711.86:346:20
2811.76:356:19
2911.76:366:17
3011.66:376:15

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.37 kWh/m².

For context, solar energy here swings from a low near 2.07 kWh/m² to a high of 7.64 kWh/m² in July across the year — September's 5.37 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.1Intense
36.1Intense
46.0Intense
56.0Bright
65.9Bright
75.9Bright
85.8Bright
95.8Bright
105.7Bright
115.6Bright
125.6Bright
135.5Bright
145.5Bright
155.4Bright
165.3Bright
175.3Bright
185.2Bright
195.2Bright
205.1Bright
215.1Bright
225.0Bright
235.0Bright
244.9Bright
254.8Bright
264.8Bright
274.8Bright
284.7Bright
294.7Bright
304.6Bright
Planning a trip in September

Is September a good time to visit Charneca de Caparica?

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

7.9
Sightseeing
4th-best month of the year
4.5
Beach & pool
3rd-best month of the year

September is one of the better times to visit Charneca de Caparica for general sightseeing.

What to pack for Charneca de Caparica in September

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

In September, Charneca de Caparica sees daytime highs around 21°C and nights near 19°C. Worth packing: sun protection. About 4 days see rain.

sun protection

Sea temperature near Charneca de Caparica in September

The nearest coast averages about 19°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 16 km away) is warmest in September at about 19°C and coldest in February near 15°C.

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

14°16°18°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan15Cool
Feb15Bracing
Mar15Bracing
Apr15Cool
May16Cool
Jun18Cool
Jul18Cool
Aug19Cool
Sep19Cool
Oct18Cool
Nov17Cool
Dec16Cool

UV index in Charneca de Caparica in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Charneca de Caparica peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 highHighModerateJul 15UV 9Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar6High
Apr8Very high
May7Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct5High
Nov3Moderate
Dec2Low
Location & terrain

Where is Charneca de Caparica?

Charneca de Caparica sits at 38.6°N, 9.2°W, 78 m above sea level, in Portugal. The nearest listed city is Corroios, 4.0 km away.

Topography around Charneca de Caparica

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

Within 3 km, the terrain around Charneca de Caparica has only modest variations in elevation — a maximum elevation change of 109 m around an average of 47 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 218 m; within 80 km, large variations in elevation — a maximum elevation change of 656 m.

The land around Charneca de Caparica is covered by artificial surfaces (39%) and trees (29%) within 3 km, water (47%) and artificial surfaces (20%) within 16 km, and water (42%) and grassland (29%) within 80 km.

3 km
109 m
16 km
218 m
80 km
656 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Corroios 4.0 km · Caparica 5.0 km · Laranjeiro 5.0 km · Piedade 6.0 km · Amora 7.0 km · Almada 7.0 km · Arrentela 8.0 km · Belém 9.0 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 Charneca de Caparica (38.6203°, -9.1943°, elevation 78 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).