Caldas da Rainha weather in April

In April, Caldas da Rainha sees average daytime highs of 17°C and overnight lows near 13°C, with 54 mm of rain across 9.3 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 38% 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 Caldas da Rainha's 6th-clearest and 5th-windiest month. For the whole year in context, see Caldas da Rainha's year-round climate.

Daytime high: 17°; 7th warmest
Overnight low: 13°; 5th coldest
Rainfall: 54 mm; 9.3 wet days
Daylight: 13 hours; 6:06 AM – 7:08 PM
Cloud cover: 51%; 6th clearest
Wind: 19 km/h; 5th windiest
Solar energy: 5.74 kWh/m²
Travel score: 5.6; out of 10

Caldas da Rainha is human settlement in Portugal.

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

← March Caldas da Rainha 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 Caldas da Rainha reaches about 17°C in the afternoon and slips back to 13°C overnight — a 4°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)	16	16	16	16	16	16	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17
Avg low (°C)	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	13	13	13	13	13

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

Caldas da Rainha 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°	77	10.3	9.5	4.0
Feb	14° / 11°	55	8.2	10.5	4.4
Mar	16° / 12°	53	8.5	11.7	5.2
Apr	17° / 13°	54	9.3	13	5.6
May	19° / 14°	45	7.2	14.1	6.7
Jun	21° / 16°	14	3.6	14.7	7.7
Jul	22° / 17°	6	1.8	14.5	8.6
Aug	23° / 18°	7	1.8	13.5	8.7
Sep	22° / 17°	31	4.8	12.3	7.8
Oct	20° / 16°	82	10	11	6.4
Nov	17° / 13°	88	11.3	9.8	5.2
Dec	15° / 11°	79	9.9	9.3	4.4

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% 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 43%.

	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 (%)	56	56	56	56	56	56	57	57	57	57	58	58	58	58	57	57	57	57	57	58	58	58	58	58	58	58	59	59	59	60
Cloudier (%)	44	44	44	44	44	44	43	43	43	43	42	42	42	42	43	43	43	43	43	42	42	42	42	42	42	42	41	41	41	40

	Clearer (%)	Cloudier (%)
1	56	44
2	56	44
3	56	44
4	56	44
5	56	44
6	56	44
7	57	43
8	57	43
9	57	43
10	57	43
11	58	42
12	58	42
13	58	42
14	58	42
15	57	43
16	57	43
17	57	43
18	57	43
19	57	43
20	58	42
21	58	42
22	58	42
23	58	42
24	58	42
25	58	42
26	58	42
27	59	41
28	59	41
29	59	41
30	60	40

Chance of precipitation in April

Any precipitation

Caldas da Rainha gets around 54 mm of rain over 9.3 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 31% and peaks near 32% 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 (%)	31	31	31	31	30	30	30	30	31	31	31	31	31	32	32	32	32	32	32	32	31	31	31	30	30	29	28	28	27	27

	Rain chance (%)
1	31
2	31
3	31
4	31
5	30
6	30
7	30
8	30
9	31
10	31
11	31
12	31
13	31
14	32
15	32
16	32
17	32
18	32
19	32
20	32
21	31
22	31
23	31
24	30
25	30
26	29
27	28
28	28
29	27
30	27

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 84% 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 (%)	91	90	90	89	89	88	88	87	87	87	87	86	86	86	85	85	85	84	83	83	82	81	81	80	79	78	78	77	76	74
Comfortable (%)	9	10	10	11	11	12	12	13	13	13	13	14	14	14	15	15	15	16	17	17	18	19	19	20	21	22	22	23	24	25
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	0	0	0	0	1

	Dry (%)	Comfortable (%)	Humid (%)
1	91	9	0
2	90	10	0
3	90	10	0
4	89	11	0
5	89	11	0
6	88	12	0
7	88	12	0
8	87	13	0
9	87	13	0
10	87	13	0
11	87	13	0
12	86	14	0
13	86	14	0
14	86	14	0
15	85	15	0
16	85	15	0
17	85	15	0
18	84	16	0
19	83	17	0
20	83	17	0
21	82	18	0
22	81	19	0
23	81	19	0
24	80	20	0
25	79	21	0
26	78	22	0
27	78	22	0
28	77	23	0
29	76	24	0
30	74	25	1

Wind in April

Winds average 19 km/h in April.

Across April, daily wind ranges from about 19 km/h on the calmest days to 19 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)	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19
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	19	light breeze
2	19	light breeze
3	19	light breeze
4	19	light breeze
5	19	light breeze
6	19	light breeze
7	19	light breeze
8	19	light breeze
9	19	light breeze
10	19	light breeze
11	19	light breeze
12	19	light breeze
13	19	light breeze
14	19	light breeze
15	19	light breeze
16	19	light breeze
17	19	light breeze
18	19	light breeze
19	19	light breeze
20	19	light breeze
21	19	light breeze
22	19	light breeze
23	19	light breeze
24	19	light breeze
25	19	light breeze
26	19	light breeze
27	19	light breeze
28	19	light breeze
29	19	light breeze
30	19	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 6:30 AM to 5:46 AM, and sunset from 6:53 PM to 7:22 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	12.6	12.6	12.6	12.7	12.7	12.8	12.8	12.9	12.9	12.9	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	13.6
Sunrise (AM)	6:30	6:28	6:26	6:25	6:23	6:22	6:20	6:18	6:17	6:15	6:14	6:12	6:10	6:09	6:07	6:06	6:04	6:03	6:01	6:00	5:58	5:57	5:55	5:54	5:53	5:51	5:50	5:49	5:47	5:46
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	7:16	7:17	7:18	7:19	7:20	7:21	7:22

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.4	6:30	6:53
2	12.4	6:28	6:54
3	12.5	6:26	6:55
4	12.5	6:25	6:56
5	12.6	6:23	6:57
6	12.6	6:22	6:58
7	12.6	6:20	6:59
8	12.7	6:18	7:00
9	12.7	6:17	7:01
10	12.8	6:15	7:02
11	12.8	6:14	7:03
12	12.9	6:12	7:04
13	12.9	6:10	7:05
14	12.9	6:09	7:06
15	13.0	6:07	7:07
16	13.0	6:06	7:08
17	13.1	6:04	7:09
18	13.1	6:03	7:10
19	13.2	6:01	7:11
20	13.2	6:00	7:12
21	13.2	5:58	7:13
22	13.3	5:57	7:14
23	13.3	5:55	7:15
24	13.4	5:54	7:16
25	13.4	5:53	7:17
26	13.4	5:51	7:18
27	13.5	5:50	7:19
28	13.5	5:49	7:20
29	13.6	5:47	7:21
30	13.6	5:46	7:22

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.74 kWh/m².

For context, solar energy here swings from a low near 1.94 kWh/m² to a high of 7.39 kWh/m² in July across the year — April's 5.74 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	5.2	5.3	5.3	5.3	5.4	5.4	5.5	5.5	5.5	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
Level	Bright	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

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

Planning a trip in April

Is April a good time to visit Caldas da Rainha?

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

5.6

Sightseeing

7th-best month of the year

1.2

Beach & pool

7th-best month of the year

April is a reasonable time to visit Caldas da Rainha for sightseeing.

What to pack for Caldas da Rainha in April

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

In April, Caldas da Rainha sees daytime highs around 17°C and nights near 13°C. Worth packing: a warm layer, rain gear and sun protection. About 9 days see rain.

a warm layerrain gearsun protection

Sea temperature near Caldas da Rainha 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 at the nearest coast (about 21 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	15	14	14	15	16	18	18	19	19	18	17	15
Comfort	Bracing	Bracing	Bracing	Bracing	Cool	Cool	Cool	Cool	Cool	Cool	Cool	Cool

	Sea temperature (°C)	Comfort
Jan	15	Bracing
Feb	14	Bracing
Mar	14	Bracing
Apr	15	Bracing
May	16	Cool
Jun	18	Cool
Jul	18	Cool
Aug	19	Cool
Sep	19	Cool
Oct	18	Cool
Nov	17	Cool
Dec	15	Cool

UV index in Caldas da Rainha in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Caldas da Rainha 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.

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

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

Location & terrain

Where is Caldas da Rainha?

Caldas da Rainha sits at 39.4°N, 9.1°W, 60 m above sea level, in Portugal. The nearest listed city is Peniche, 22 km away.

Topography around Caldas da Rainha

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

Within 3 km, the terrain around Caldas da Rainha has only modest variations in elevation — a maximum elevation change of 141 m around an average of 61 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 329 m; within 80 km, large variations in elevation — a maximum elevation change of 673 m.

The land around Caldas da Rainha is covered by grassland (39%), trees (33%) and artificial surfaces (23%) within 3 km, trees (43%) and grassland (30%) within 16 km, and water (32%), trees (31%) and grassland (26%) within 80 km.

3 km

141 m

grassland 39%

16 km

329 m

trees 43%

80 km

673 m

water 32%

treesshrubsgrasslandcroplandartificial surfaceswater

← March Caldas da Rainha year-round climate May →Best places to visit in April

April weather nearby: Peniche 22 km · Alcobaça 22 km · Torres Vedras 36 km · Monsanto 37 km · Marinha Grande 42 km · Santarém 43 km · Azambuja 44 km · Leiria 47 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 Caldas da Rainha (39.4033°, -9.1384°, elevation 60 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	16	12
2	16	12
3	16	12
4	16	12
5	16	12
6	16	12
7	17	12
8	17	12
9	17	12
10	17	12
11	17	12
12	17	12
13	17	12
14	17	13
15	17	13
16	17	13
17	17	13
18	17	13
19	17	13
20	17	13
21	17	13
22	17	13
23	17	13
24	17	13
25	17	13
26	17	13
27	17	13
28	17	13
29	17	13
30	17	13

	Clearer (%)	Cloudier (%)
1	56	44
2	56	44
3	56	44
4	56	44
5	56	44
6	56	44
7	57	43
8	57	43
9	57	43
10	57	43
11	58	42
12	58	42
13	58	42
14	58	42
15	57	43
16	57	43
17	57	43
18	57	43
19	57	43
20	58	42
21	58	42
22	58	42
23	58	42
24	58	42
25	58	42
26	58	42
27	59	41
28	59	41
29	59	41
30	60	40

	Rain chance (%)
1	31
2	31
3	31
4	31
5	30
6	30
7	30
8	30
9	31
10	31
11	31
12	31
13	31
14	32
15	32
16	32
17	32
18	32
19	32
20	32
21	31
22	31
23	31
24	30
25	30
26	29
27	28
28	28
29	27
30	27

	Dry (%)	Comfortable (%)	Humid (%)
1	91	9	0
2	90	10	0
3	90	10	0
4	89	11	0
5	89	11	0
6	88	12	0
7	88	12	0
8	87	13	0
9	87	13	0
10	87	13	0
11	87	13	0
12	86	14	0
13	86	14	0
14	86	14	0
15	85	15	0
16	85	15	0
17	85	15	0
18	84	16	0
19	83	17	0
20	83	17	0
21	82	18	0
22	81	19	0
23	81	19	0
24	80	20	0
25	79	21	0
26	78	22	0
27	78	22	0
28	77	23	0
29	76	24	0
30	74	25	1

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

	Clearer (%)	Cloudier (%)
1	56	44
2	56	44
3	56	44
4	56	44
5	56	44
6	56	44
7	57	43
8	57	43
9	57	43
10	57	43
11	58	42
12	58	42
13	58	42
14	58	42
15	57	43
16	57	43
17	57	43
18	57	43
19	57	43
20	58	42
21	58	42
22	58	42
23	58	42
24	58	42
25	58	42
26	58	42
27	59	41
28	59	41
29	59	41
30	60	40

	Rain chance (%)
1	31
2	31
3	31
4	31
5	30
6	30
7	30
8	30
9	31
10	31
11	31
12	31
13	31
14	32
15	32
16	32
17	32
18	32
19	32
20	32
21	31
22	31
23	31
24	30
25	30
26	29
27	28
28	28
29	27
30	27

	Dry (%)	Comfortable (%)	Humid (%)
1	91	9	0
2	90	10	0
3	90	10	0
4	89	11	0
5	89	11	0
6	88	12	0
7	88	12	0
8	87	13	0
9	87	13	0
10	87	13	0
11	87	13	0
12	86	14	0
13	86	14	0
14	86	14	0
15	85	15	0
16	85	15	0
17	85	15	0
18	84	16	0
19	83	17	0
20	83	17	0
21	82	18	0
22	81	19	0
23	81	19	0
24	80	20	0
25	79	21	0
26	78	22	0
27	78	22	0
28	77	23	0
29	76	24	0
30	74	25	1

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

	Clearer (%)	Cloudier (%)
1	56	44
2	56	44
3	56	44
4	56	44
5	56	44
6	56	44
7	57	43
8	57	43
9	57	43
10	57	43
11	58	42
12	58	42
13	58	42
14	58	42
15	57	43
16	57	43
17	57	43
18	57	43
19	57	43
20	58	42
21	58	42
22	58	42
23	58	42
24	58	42
25	58	42
26	58	42
27	59	41
28	59	41
29	59	41
30	60	40

	Rain chance (%)
1	31
2	31
3	31
4	31
5	30
6	30
7	30
8	30
9	31
10	31
11	31
12	31
13	31
14	32
15	32
16	32
17	32
18	32
19	32
20	32
21	31
22	31
23	31
24	30
25	30
26	29
27	28
28	28
29	27
30	27

	Dry (%)	Comfortable (%)	Humid (%)
1	91	9	0
2	90	10	0
3	90	10	0
4	89	11	0
5	89	11	0
6	88	12	0
7	88	12	0
8	87	13	0
9	87	13	0
10	87	13	0
11	87	13	0
12	86	14	0
13	86	14	0
14	86	14	0
15	85	15	0
16	85	15	0
17	85	15	0
18	84	16	0
19	83	17	0
20	83	17	0
21	82	18	0
22	81	19	0
23	81	19	0
24	80	20	0
25	79	21	0
26	78	22	0
27	78	22	0
28	77	23	0
29	76	24	0
30	74	25	1