Guimarães weather in April

In April, Guimarães sees average daytime highs of 17°C and overnight lows near 8°C, with 152 mm of rain across 13 wet days and about 13.1 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 30% 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 42 min by month's end. Set against the rest of the year, April is Guimarães's 9th-clearest and 4th-windiest month. For the whole year in context, see Guimarães's year-round climate.

Daytime high
17°
7th warmest
Overnight low
6th coldest
Rainfall
152 mm
13 wet days
Daylight
13 h 06 min
6:00 AM – 7:07 PM
Cloud cover
59%
9th clearest
Wind
9 km/h
4th windiest
Solar energy
5.14 kWh/m²
Travel score
5.2
out of 10

Guimarães is human settlement in Portugal.

Air quality
Good
PM10 16.2 µg/m³ · 2019

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

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 Guimarães reaches about 17°C in the afternoon and slips back to 8°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 23°C. Set against its neighbours, April runs about 1°C warmer than March and about 3°C cooler than May.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
1177
2177
3177
4177
5178
6178
7178
8178
9178
10178
11178
12178
13178
14178
15178
16178
17178
18178
19178
20178
21178
22188
23188
24188
25188
26189
27189
28189
29189
30189

Guimarães 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.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 21512.79.32.9
Feb13° / 1429.710.33.8
Mar16° / 16211.111.74.9
Apr17° / 1521313.15.2
May20° / 10°12412.114.36.1
Jun24° / 13°55714.97.5
Jul26° / 15°324.414.78.0
Aug26° / 15°455.113.77.9
Sep24° / 13°857.112.37.5
Oct19° / 11°22412.910.95.8
Nov15° / 21313.29.74.1
Dec12° / 22812.89.13.1

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 16% of April, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24654
34654
44753
54852
64852
74852
84951
95050
105050
114951
124951
134951
144753
154753
164654
174654
184555
194357
204357
214258
224258
234258
244258
254258
264258
274258
284357
294357
304456

Chance of precipitation in April

Any precipitation

Guimarães gets around 152 mm of rain over 13 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 43% and peaks near 44% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
144
244
344
443
543
642
742
842
941
1041
1141
1242
1342
1443
1543
1643
1744
1844
1944
2044
2144
2244
2344
2444
2544
2643
2742
2842
2941
3041

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
11000
21000
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19982
20982
21982
22982
23982
24973
25973
26973
27964
28964
29964
30955

Wind in April

Winds average 9 km/h in April.

Across April, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over April. Sunrise moves from 6:25 AM to 5:39 AM, and sunset from 6:50 PM to 7:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:256:50
212.56:246:51
312.56:226:52
412.66:206:54
512.66:186:55
612.66:176:56
712.76:156:57
812.76:136:58
912.86:126:59
1012.86:107:00
1112.96:087:01
1212.96:077:02
1313.06:057:03
1413.06:037:05
1513.16:027:06
1613.16:007:07
1713.25:587:08
1813.25:577:09
1913.25:557:10
2013.35:547:11
2113.35:527:12
2213.45:517:13
2313.45:497:14
2413.55:487:16
2513.55:467:17
2613.65:457:18
2713.65:437:19
2813.65:427:20
2913.75:407:21
3013.75:397:22

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.14 kWh/m².

For context, solar energy here swings from a low near 1.57 kWh/m² to a high of 7.23 kWh/m² in July across the year — April's 5.14 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.7Bright
34.7Bright
44.8Bright
54.8Bright
64.8Bright
74.9Bright
84.9Bright
95.0Bright
105.0Bright
115.0Bright
125.1Bright
135.1Bright
145.1Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.4Bright
255.4Bright
265.5Bright
275.5Bright
285.5Bright
295.6Bright
305.6Bright
Planning a trip in April

Hazard calendar for Guimarães

In seasonPeak

In April, Guimarães sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Guimarães's rainy season runs October–May, when most of the year's rain falls.

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

Is April a good time to visit Guimarães?

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

5.2
Sightseeing
7th-best month of the year
1.4
Beach & pool
7th-best month of the year

April is a reasonable time to visit Guimarães for sightseeing.

What to pack for Guimarães in April

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

In April, Guimarães sees daytime highs around 17°C and nights near 8°C. Worth packing: rain gear and sun protection. About 13 days see rain.

rain gearsun protection

Sea temperature near Guimarães in April

The nearest coast averages about 14°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 45 km away) is warmest in September at about 17°C and coldest in February near 13°C.

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

12°14°16°18°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr14Bracing
May16Cool
Jun17Cool
Jul17Cool
Aug17Cool
Sep17Cool
Oct17Cool
Nov16Cool
Dec14Bracing

UV index in Guimarães 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 Guimarães peaks around June 23 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 23UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr7High
May7High
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Guimarães in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Guimarães is worst in August — around 25 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (November, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodAug 2425 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar14Moderate
Apr12Moderate
May8Good
Jun9Good
Jul9Good
Aug25Moderate
Sep24Moderate
Oct18Moderate
Nov7Good
Dec7Good
Location & terrain

Where is Guimarães?

Guimarães sits at 41.4°N, 8.3°W, 189 m above sea level, in Portugal. The nearest listed city is Fafe, 10 km away.

Topography around Guimarães

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

Within 3 km, the terrain around Guimarães has significant variations in elevation — a maximum elevation change of 479 m around an average of 249 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 732 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,520 m.

The land around Guimarães is covered by trees (41%), artificial surfaces (33%) and grassland (20%) within 3 km, trees (52%) and grassland (24%) within 16 km, and trees (41%) and grassland (35%) within 80 km.

3 km
479 m
16 km
732 m
80 km
1,520 m
treesshrubsgrasslandcroplandartificial surfaceswater
April weather nearby: Fafe 10 km · Felgueiras 12 km · Bairro Novo 14 km · Braga 16 km · Bougado 24 km · Trofa 25 km · Cabeceiras de Basto 27 km · Paredes 27 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 Guimarães (41.4444°, -8.2962°, elevation 189 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).