Carcavelos weather in April

In April, Carcavelos sees average daytime highs of 17°C and overnight lows near 12°C, with 51 mm of rain across 8.4 wet days and about 13 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 17°C through the month. The sky is clear or mostly clear about 40% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of April to 13 h 36 min by month's end. Set against the rest of the year, April is Carcavelos's 6th-clearest and 5th-windiest month. For the whole year in context, see Carcavelos's year-round climate.

Daytime high: 17°; 7th warmest
Overnight low: 12°; 5th coldest
Rainfall: 51 mm; 8.4 wet days
Daylight: 13 hours; 6:07 AM – 7:08 PM
Cloud cover: 49%; 6th clearest
Wind: 17 km/h; 5th windiest
Solar energy: 5.78 kWh/m²
Travel score: 6.0; out of 10

Carcavelos is town in Cascais, Portugal.

Air quality: Good; PM10 16.1 µg/m³ · 2019

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

← March Carcavelos year-round climate May →Best places to visit in April

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 17°C through the month.

A typical April day in Carcavelos reaches about 17°C in the afternoon and slips back to 12°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 21°C. Set against its neighbours, April runs about 1°C warmer than March and about 2°C cooler than May.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	18	18	18	18	18	18	18	18	18
Avg low (°C)	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	13	13	13	13	13	13	13	13	13	13	13	13

	Avg high (°C)	Avg low (°C)
1	17	12
2	17	12
3	17	12
4	17	12
5	17	12
6	17	12
7	17	12
8	17	12
9	17	12
10	17	12
11	17	12
12	17	12
13	17	12
14	17	12
15	17	12
16	17	12
17	17	12
18	17	12
19	17	13
20	17	13
21	17	13
22	18	13
23	18	13
24	18	13
25	18	13
26	18	13
27	18	13
28	18	13
29	18	13
30	18	13

Carcavelos weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 6th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	14° / 10°	68	8.9	9.6	4.2
Feb	15° / 10°	51	7.5	10.5	4.6
Mar	16° / 11°	53	8.1	11.7	5.5
Apr	17° / 12°	51	8.4	13	6.0
May	19° / 14°	42	5.9	14.1	7.1
Jun	22° / 16°	10	2.1	14.7	8.4
Jul	24° / 18°	2	0.6	14.4	9.3
Aug	24° / 18°	4	1	13.5	9.2
Sep	23° / 17°	29	4.1	12.3	8.3
Oct	20° / 16°	77	8.9	11	6.7
Nov	17° / 13°	82	10.2	9.9	5.5
Dec	15° / 11°	79	9.4	9.3	4.5

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 20% of April, with mostly cloudy or overcast conditions the remaining 40%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	58	59	59	59	59	60	60	61	61	62	62	61	62	61	61	60	61	60	60	60	59	59	59	59	60	60	60	61	61	62
Cloudier (%)	42	41	41	41	41	40	40	39	39	38	38	39	38	39	39	40	39	40	40	40	41	41	41	41	40	40	40	39	39	38

	Clearer (%)	Cloudier (%)
1	58	42
2	59	41
3	59	41
4	59	41
5	59	41
6	60	40
7	60	40
8	61	39
9	61	39
10	62	38
11	62	38
12	61	39
13	62	38
14	61	39
15	61	39
16	60	40
17	61	39
18	60	40
19	60	40
20	60	40
21	59	41
22	59	41
23	59	41
24	59	41
25	60	40
26	60	40
27	60	40
28	61	39
29	61	39
30	62	38

Chance of precipitation in April

Any precipitation

Carcavelos gets around 51 mm of rain over 8.4 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 28% and peaks near 29% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	29	29	29	29	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	27	27	27	26	26	25	25	25

	Rain chance (%)
1	29
2	29
3	29
4	29
5	28
6	28
7	28
8	28
9	28
10	28
11	28
12	28
13	28
14	28
15	28
16	28
17	28
18	28
19	28
20	28
21	28
22	28
23	27
24	27
25	27
26	26
27	26
28	25
29	25
30	25

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 86% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	92	92	92	91	91	91	90	90	89	89	89	88	88	87	87	87	86	86	85	85	84	84	83	83	82	81	80	80	79	78
Comfortable (%)	8	8	8	9	9	9	10	10	11	11	11	12	12	13	13	13	14	14	15	15	16	16	17	17	18	18	19	19	20	21
Humid (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1

	Dry (%)	Comfortable (%)	Humid (%)
1	92	8	0
2	92	8	0
3	92	8	0
4	91	9	0
5	91	9	0
6	91	9	0
7	90	10	0
8	90	10	0
9	89	11	0
10	89	11	0
11	89	11	0
12	88	12	0
13	88	12	0
14	87	13	0
15	87	13	0
16	87	13	0
17	86	14	0
18	86	14	0
19	85	15	0
20	85	15	0
21	84	16	0
22	84	16	0
23	83	17	0
24	83	17	0
25	82	18	0
26	81	18	1
27	80	19	1
28	80	19	1
29	79	20	1
30	78	21	1

Wind in April

Winds average 17 km/h in April.

Across April, daily wind ranges from about 17 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	18	18	18	18	18	18	18	18	18	18	18	18	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	18	18	18
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (km/h)	Feels
1	18	light breeze
2	18	light breeze
3	18	light breeze
4	18	light breeze
5	18	light breeze
6	18	light breeze
7	18	light breeze
8	18	light breeze
9	18	light breeze
10	18	light breeze
11	18	light breeze
12	18	light breeze
13	17	light breeze
14	17	light breeze
15	17	light breeze
16	17	light breeze
17	17	light breeze
18	17	light breeze
19	17	light breeze
20	17	light breeze
21	17	light breeze
22	17	light breeze
23	17	light breeze
24	17	light breeze
25	17	light breeze
26	17	light breeze
27	17	light breeze
28	18	light breeze
29	18	light breeze
30	18	light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over April. Sunrise moves from 6:31 AM to 5:48 AM, and sunset from 6:53 PM to 7:21 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	12.4	12.4	12.5	12.5	12.5	12.6	12.6	12.7	12.7	12.8	12.8	12.8	12.9	12.9	13.0	13.0	13.0	13.1	13.1	13.2	13.2	13.2	13.3	13.3	13.4	13.4	13.4	13.5	13.5	13.6
Sunrise (AM)	6:31	6:29	6:27	6:26	6:24	6:23	6:21	6:20	6:18	6:16	6:15	6:13	6:12	6:10	6:09	6:07	6:06	6:04	6:03	6:01	6:00	5:59	5:57	5:56	5:54	5:53	5:52	5:50	5:49	5:48
Sunset (PM)	6:53	6:54	6:55	6:56	6:57	6:58	6:59	7:00	7:01	7:02	7:03	7:04	7:05	7:06	7:07	7:08	7:09	7:10	7:11	7:12	7:13	7:14	7:15	7:15	7:16	7:17	7:18	7:19	7:20	7:21

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.4	6:31	6:53
2	12.4	6:29	6:54
3	12.5	6:27	6:55
4	12.5	6:26	6:56
5	12.5	6:24	6:57
6	12.6	6:23	6:58
7	12.6	6:21	6:59
8	12.7	6:20	7:00
9	12.7	6:18	7:01
10	12.8	6:16	7:02
11	12.8	6:15	7:03
12	12.8	6:13	7:04
13	12.9	6:12	7:05
14	12.9	6:10	7:06
15	13.0	6:09	7:07
16	13.0	6:07	7:08
17	13.0	6:06	7:09
18	13.1	6:04	7:10
19	13.1	6:03	7:11
20	13.2	6:01	7:12
21	13.2	6:00	7:13
22	13.2	5:59	7:14
23	13.3	5:57	7:15
24	13.3	5:56	7:15
25	13.4	5:54	7:16
26	13.4	5:53	7:17
27	13.4	5:52	7:18
28	13.5	5:50	7:19
29	13.5	5:49	7:20
30	13.6	5:48	7:21

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.78 kWh/m².

For context, solar energy here swings from a low near 2.01 kWh/m² to a high of 7.59 kWh/m² in July across the year — April's 5.78 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	5.2	5.3	5.3	5.4	5.4	5.4	5.5	5.5	5.6	5.6	5.6	5.7	5.7	5.7	5.8	5.8	5.8	5.9	5.9	5.9	6.0	6.0	6.0	6.1	6.1	6.2	6.2	6.2	6.3	6.3
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	5.2	Bright
2	5.3	Bright
3	5.3	Bright
4	5.4	Bright
5	5.4	Bright
6	5.4	Bright
7	5.5	Bright
8	5.5	Bright
9	5.6	Bright
10	5.6	Bright
11	5.6	Bright
12	5.7	Bright
13	5.7	Bright
14	5.7	Bright
15	5.8	Bright
16	5.8	Bright
17	5.8	Bright
18	5.9	Bright
19	5.9	Bright
20	5.9	Bright
21	6.0	Bright
22	6.0	Intense
23	6.0	Intense
24	6.1	Intense
25	6.1	Intense
26	6.2	Intense
27	6.2	Intense
28	6.2	Intense
29	6.3	Intense
30	6.3	Intense

Planning a trip in April

Is April a good time to visit Carcavelos?

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

6.0

Sightseeing

7th-best month of the year

1.6

Beach & pool

7th-best month of the year

April is a reasonable time to visit Carcavelos for sightseeing.

What to pack for Carcavelos in April

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

In April, Carcavelos sees daytime highs around 17°C and nights near 12°C. Worth packing: rain gear and sun protection. About 8 days see rain.

rain gearsun protection

Sea temperature near Carcavelos in April

The nearest coast averages about 15°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	15	15	15	15	16	18	18	19	19	18	17	16
Comfort	Cool	Bracing	Bracing	Cool	Cool	Cool	Cool	Cool	Cool	Cool	Cool	Cool

	Sea temperature (°C)	Comfort
Jan	15	Cool
Feb	15	Bracing
Mar	15	Bracing
Apr	15	Cool
May	16	Cool
Jun	18	Cool
Jul	18	Cool
Aug	19	Cool
Sep	19	Cool
Oct	18	Cool
Nov	17	Cool
Dec	16	Cool

UV index in Carcavelos in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Carcavelos 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	2	3	6	8	7	9	9	9	6	5	3	2
Level	Low	Moderate	High	Very high	Very high	Very high	Very high	Very high	High	High	Moderate	Low

	UV index (midday)	Level
Jan	2	Low
Feb	3	Moderate
Mar	6	High
Apr	8	Very high
May	7	Very high
Jun	9	Very high
Jul	9	Very high
Aug	9	Very high
Sep	6	High
Oct	5	High
Nov	3	Moderate
Dec	2	Low

Location & terrain

Where is Carcavelos?

Carcavelos sits at 38.7°N, 9.3°W, 30 m above sea level, in Portugal. The nearest listed city is Oeiras, 1.0 km away.

Topography around Carcavelos

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

Within 3 km, the terrain around Carcavelos has only modest variations in elevation — a maximum elevation change of 123 m around an average of 32 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 514 m; within 80 km, large variations in elevation — a maximum elevation change of 656 m.

The land around Carcavelos is covered by artificial surfaces (41%) and water (33%) within 3 km, water (45%) and artificial surfaces (22%) within 16 km, and water (46%) and grassland (26%) within 80 km.

3 km

123 m

artificial surfaces 41%

16 km

514 m

water 45%

80 km

656 m

water 46%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwater

← March Carcavelos year-round climate May →Best places to visit in April

April weather nearby: Oeiras 1.0 km · São Domingos de Rana 2.0 km · Paço de Arcos 3.0 km · Parede 3.0 km · Estoril 7.0 km · Linda-a-Velha 7.0 km · Monte Estoril 7.0 km · Carnaxide 8.0 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

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 Carcavelos (38.691°, -9.3222°, elevation 30 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).

	Avg high (°C)	Avg low (°C)
1	17	12
2	17	12
3	17	12
4	17	12
5	17	12
6	17	12
7	17	12
8	17	12
9	17	12
10	17	12
11	17	12
12	17	12
13	17	12
14	17	12
15	17	12
16	17	12
17	17	12
18	17	12
19	17	13
20	17	13
21	17	13
22	18	13
23	18	13
24	18	13
25	18	13
26	18	13
27	18	13
28	18	13
29	18	13
30	18	13

	Clearer (%)	Cloudier (%)
1	58	42
2	59	41
3	59	41
4	59	41
5	59	41
6	60	40
7	60	40
8	61	39
9	61	39
10	62	38
11	62	38
12	61	39
13	62	38
14	61	39
15	61	39
16	60	40
17	61	39
18	60	40
19	60	40
20	60	40
21	59	41
22	59	41
23	59	41
24	59	41
25	60	40
26	60	40
27	60	40
28	61	39
29	61	39
30	62	38

	Rain chance (%)
1	29
2	29
3	29
4	29
5	28
6	28
7	28
8	28
9	28
10	28
11	28
12	28
13	28
14	28
15	28
16	28
17	28
18	28
19	28
20	28
21	28
22	28
23	27
24	27
25	27
26	26
27	26
28	25
29	25
30	25

	Dry (%)	Comfortable (%)	Humid (%)
1	92	8	0
2	92	8	0
3	92	8	0
4	91	9	0
5	91	9	0
6	91	9	0
7	90	10	0
8	90	10	0
9	89	11	0
10	89	11	0
11	89	11	0
12	88	12	0
13	88	12	0
14	87	13	0
15	87	13	0
16	87	13	0
17	86	14	0
18	86	14	0
19	85	15	0
20	85	15	0
21	84	16	0
22	84	16	0
23	83	17	0
24	83	17	0
25	82	18	0
26	81	18	1
27	80	19	1
28	80	19	1
29	79	20	1
30	78	21	1

	Avg high (°C)	Avg low (°C)
1	17	12
2	17	12
3	17	12
4	17	12
5	17	12
6	17	12
7	17	12
8	17	12
9	17	12
10	17	12
11	17	12
12	17	12
13	17	12
14	17	12
15	17	12
16	17	12
17	17	12
18	17	12
19	17	13
20	17	13
21	17	13
22	18	13
23	18	13
24	18	13
25	18	13
26	18	13
27	18	13
28	18	13
29	18	13
30	18	13

	Clearer (%)	Cloudier (%)
1	58	42
2	59	41
3	59	41
4	59	41
5	59	41
6	60	40
7	60	40
8	61	39
9	61	39
10	62	38
11	62	38
12	61	39
13	62	38
14	61	39
15	61	39
16	60	40
17	61	39
18	60	40
19	60	40
20	60	40
21	59	41
22	59	41
23	59	41
24	59	41
25	60	40
26	60	40
27	60	40
28	61	39
29	61	39
30	62	38

	Rain chance (%)
1	29
2	29
3	29
4	29
5	28
6	28
7	28
8	28
9	28
10	28
11	28
12	28
13	28
14	28
15	28
16	28
17	28
18	28
19	28
20	28
21	28
22	28
23	27
24	27
25	27
26	26
27	26
28	25
29	25
30	25

	Dry (%)	Comfortable (%)	Humid (%)
1	92	8	0
2	92	8	0
3	92	8	0
4	91	9	0
5	91	9	0
6	91	9	0
7	90	10	0
8	90	10	0
9	89	11	0
10	89	11	0
11	89	11	0
12	88	12	0
13	88	12	0
14	87	13	0
15	87	13	0
16	87	13	0
17	86	14	0
18	86	14	0
19	85	15	0
20	85	15	0
21	84	16	0
22	84	16	0
23	83	17	0
24	83	17	0
25	82	18	0
26	81	18	1
27	80	19	1
28	80	19	1
29	79	20	1
30	78	21	1

	Avg high (°C)	Avg low (°C)
1	17	12
2	17	12
3	17	12
4	17	12
5	17	12
6	17	12
7	17	12
8	17	12
9	17	12
10	17	12
11	17	12
12	17	12
13	17	12
14	17	12
15	17	12
16	17	12
17	17	12
18	17	12
19	17	13
20	17	13
21	17	13
22	18	13
23	18	13
24	18	13
25	18	13
26	18	13
27	18	13
28	18	13
29	18	13
30	18	13

	Clearer (%)	Cloudier (%)
1	58	42
2	59	41
3	59	41
4	59	41
5	59	41
6	60	40
7	60	40
8	61	39
9	61	39
10	62	38
11	62	38
12	61	39
13	62	38
14	61	39
15	61	39
16	60	40
17	61	39
18	60	40
19	60	40
20	60	40
21	59	41
22	59	41
23	59	41
24	59	41
25	60	40
26	60	40
27	60	40
28	61	39
29	61	39
30	62	38

	Rain chance (%)
1	29
2	29
3	29
4	29
5	28
6	28
7	28
8	28
9	28
10	28
11	28
12	28
13	28
14	28
15	28
16	28
17	28
18	28
19	28
20	28
21	28
22	28
23	27
24	27
25	27
26	26
27	26
28	25
29	25
30	25

	Dry (%)	Comfortable (%)	Humid (%)
1	92	8	0
2	92	8	0
3	92	8	0
4	91	9	0
5	91	9	0
6	91	9	0
7	90	10	0
8	90	10	0
9	89	11	0
10	89	11	0
11	89	11	0
12	88	12	0
13	88	12	0
14	87	13	0
15	87	13	0
16	87	13	0
17	86	14	0
18	86	14	0
19	85	15	0
20	85	15	0
21	84	16	0
22	84	16	0
23	83	17	0
24	83	17	0
25	82	18	0
26	81	18	1
27	80	19	1
28	80	19	1
29	79	20	1
30	78	21	1