Guarda weather in May

In May, Guarda sees average daytime highs of 20°C and overnight lows near 10°C, with 64 mm of rain across 9.5 wet days and about 14.2 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 18°C in the first days to 22°C by the end. The sky is clear or mostly clear about 32% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of May to 14 h 42 min by month's end. Set against the rest of the year, May is Guarda's 5th-clearest and 6th-windiest month. For the whole year in context, see Guarda's year-round climate.

Daytime high: 20°; 5th warmest
Overnight low: 10°; 7th coldest
Rainfall: 64 mm; 9.5 wet days
Daylight: 14 h 12 min; 5:18 AM – 7:33 PM
Cloud cover: 55%; 5th clearest
Wind: 10 km/h; 6th windiest
Solar energy: 6.33 kWh/m²
Travel score: 6.4; out of 10

Guarda is city seat of Guarda municipality.

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

← April Guarda year-round climate June →Best places to visit in May

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 18°C in the first days to 22°C by the end.

A typical May day in Guarda reaches about 20°C in the afternoon and slips back to 10°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 26°C. Set against its neighbours, May runs about 4°C warmer than April and about 5°C cooler than June.

	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	31
Avg high (°C)	18	18	18	18	18	18	18	18	19	19	19	19	19	19	20	20	20	20	20	20	21	21	21	21	21	22	22	22	22	22	22
Avg low (°C)	8	8	8	8	8	8	9	9	9	9	9	9	9	9	9	10	10	10	10	10	10	10	10	11	11	11	11	11	11	11	11

	Avg high (°C)	Avg low (°C)
1	18	8
2	18	8
3	18	8
4	18	8
5	18	8
6	18	8
7	18	9
8	18	9
9	19	9
10	19	9
11	19	9
12	19	9
13	19	9
14	19	9
15	20	9
16	20	10
17	20	10
18	20	10
19	20	10
20	20	10
21	21	10
22	21	10
23	21	10
24	21	11
25	21	11
26	22	11
27	22	11
28	22	11
29	22	11
30	22	11
31	22	11

How May really feels in Guarda

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Guarda weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	9° / 3°	77	9.2	0.8	9.4	2.0
Feb	11° / 3°	55	7.5	0.7	10.4	2.9
Mar	14° / 5°	64	8.8	0.2	11.7	4.3
Apr	16° / 7°	67	10.5	0	13	5.0
May	20° / 10°	64	9.5	0	14.2	6.4
Jun	25° / 13°	23	4.8	0	14.8	7.9
Jul	28° / 15°	10	2.6	0	14.6	7.4
Aug	28° / 15°	13	3.3	0	13.6	7.4
Sep	24° / 13°	44	5.6	0	12.3	7.8
Oct	18° / 10°	105	9.9	0	10.9	5.9
Nov	13° / 6°	86	9.9	0.2	9.7	3.5
Dec	10° / 3°	85	9.1	0.2	9.2	2.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to open up as the month goes on.

	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	31
Clearer (%)	42	43	43	43	43	43	43	43	44	45	45	45	47	46	48	48	49	50	51	52	53	53	54	55	55	55	57	57	57	57	58
Cloudier (%)	58	57	57	57	57	57	57	57	56	55	55	55	53	54	52	52	51	50	49	48	47	47	46	45	45	45	43	43	43	43	42

	Clearer (%)	Cloudier (%)
1	42	58
2	43	57
3	43	57
4	43	57
5	43	57
6	43	57
7	43	57
8	43	57
9	44	56
10	45	55
11	45	55
12	45	55
13	47	53
14	46	54
15	48	52
16	48	52
17	49	51
18	50	50
19	51	49
20	52	48
21	53	47
22	53	47
23	54	46
24	55	45
25	55	45
26	55	45
27	57	43
28	57	43
29	57	43
30	57	43
31	58	42

Chance of precipitation in May

Any precipitation

Guarda gets around 64 mm of rain over 9.5 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 30% and peaks near 34% on the wettest days. The odds ease toward the end of the month.

	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	31
Rain chance (%)	33	33	34	34	34	34	34	34	34	34	34	34	34	33	33	32	32	31	30	30	29	28	28	27	26	26	25	25	24	23	23

	Rain chance (%)
1	33
2	33
3	34
4	34
5	34
6	34
7	34
8	34
9	34
10	34
11	34
12	34
13	34
14	33
15	33
16	32
17	32
18	31
19	30
20	30
21	29
22	28
23	28
24	27
25	26
26	26
27	25
28	25
29	24
30	23
31	23

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 97% 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	31
Dry (%)	100	100	100	99	99	99	99	99	99	99	99	98	98	98	98	98	98	97	97	97	96	96	95	95	94	94	94	93	93	93	92
Comfortable (%)	0	0	0	1	1	1	1	1	1	1	1	2	2	2	2	2	2	3	3	3	4	4	5	5	6	6	6	7	7	7	8

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	98	2
13	98	2
14	98	2
15	98	2
16	98	2
17	98	2
18	97	3
19	97	3
20	97	3
21	96	4
22	96	4
23	95	5
24	95	5
25	94	6
26	94	6
27	94	6
28	93	7
29	93	7
30	93	7
31	92	8

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 10 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	31
Wind speed (km/h)	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	10	calm
2	10	calm
3	10	calm
4	10	calm
5	10	calm
6	10	calm
7	10	calm
8	10	calm
9	10	calm
10	10	calm
11	10	calm
12	10	calm
13	10	calm
14	10	calm
15	10	calm
16	10	calm
17	10	calm
18	10	calm
19	10	calm
20	10	calm
21	10	calm
22	10	calm
23	10	calm
24	10	calm
25	10	calm
26	10	calm
27	10	calm
28	10	calm
29	10	calm
30	10	calm
31	10	calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over May. Sunrise moves from 5:35 AM to 5:07 AM, and sunset from 7:17 PM to 7:46 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	31
Daylight (h)	13.7	13.7	13.8	13.8	13.9	13.9	13.9	14.0	14.0	14.0	14.1	14.1	14.1	14.2	14.2	14.2	14.3	14.3	14.3	14.4	14.4	14.4	14.5	14.5	14.5	14.5	14.6	14.6	14.6	14.6	14.7
Sunrise (AM)	5:35	5:34	5:33	5:31	5:30	5:29	5:28	5:26	5:25	5:24	5:23	5:22	5:21	5:20	5:19	5:18	5:17	5:16	5:15	5:14	5:13	5:13	5:12	5:11	5:10	5:10	5:09	5:09	5:08	5:07	5:07
Sunset (PM)	7:17	7:18	7:19	7:21	7:22	7:23	7:24	7:25	7:26	7:27	7:28	7:29	7:30	7:31	7:32	7:33	7:34	7:35	7:36	7:37	7:37	7:38	7:39	7:40	7:41	7:42	7:43	7:44	7:44	7:45	7:46

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	13.7	5:35	7:17
2	13.7	5:34	7:18
3	13.8	5:33	7:19
4	13.8	5:31	7:21
5	13.9	5:30	7:22
6	13.9	5:29	7:23
7	13.9	5:28	7:24
8	14.0	5:26	7:25
9	14.0	5:25	7:26
10	14.0	5:24	7:27
11	14.1	5:23	7:28
12	14.1	5:22	7:29
13	14.1	5:21	7:30
14	14.2	5:20	7:31
15	14.2	5:19	7:32
16	14.2	5:18	7:33
17	14.3	5:17	7:34
18	14.3	5:16	7:35
19	14.3	5:15	7:36
20	14.4	5:14	7:37
21	14.4	5:13	7:37
22	14.4	5:13	7:38
23	14.5	5:12	7:39
24	14.5	5:11	7:40
25	14.5	5:10	7:41
26	14.5	5:10	7:42
27	14.6	5:09	7:43
28	14.6	5:09	7:44
29	14.6	5:08	7:44
30	14.6	5:07	7:45
31	14.7	5:07	7:46

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.33 kWh/m².

For context, solar energy here swings from a low near 1.7 kWh/m² to a high of 7.63 kWh/m² in July across the year — May's 6.33 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	31
Solar energy (kWh/m²)	5.8	5.9	5.9	5.9	6.0	6.0	6.0	6.0	6.1	6.1	6.1	6.2	6.2	6.3	6.3	6.3	6.4	6.4	6.5	6.5	6.5	6.5	6.6	6.6	6.6	6.7	6.7	6.7	6.7	6.8	6.8
Level	Bright	Bright	Bright	Bright	Bright	Bright	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	5.8	Bright
2	5.9	Bright
3	5.9	Bright
4	5.9	Bright
5	6.0	Bright
6	6.0	Bright
7	6.0	Intense
8	6.0	Intense
9	6.1	Intense
10	6.1	Intense
11	6.1	Intense
12	6.2	Intense
13	6.2	Intense
14	6.3	Intense
15	6.3	Intense
16	6.3	Intense
17	6.4	Intense
18	6.4	Intense
19	6.5	Intense
20	6.5	Intense
21	6.5	Intense
22	6.5	Intense
23	6.6	Intense
24	6.6	Intense
25	6.6	Intense
26	6.7	Intense
27	6.7	Intense
28	6.7	Intense
29	6.7	Intense
30	6.8	Intense
31	6.8	Intense

Planning a trip in May

Hazard calendar for Guarda

In seasonPeak

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

Guarda'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 May a good time to visit Guarda?

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

6.4

Sightseeing

5th-best month of the year

3.3

Beach & pool

5th-best month of the year

May is a reasonable time to visit Guarda for sightseeing.

What to pack for Guarda in May

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

In May, Guarda sees daytime highs around 20°C and nights near 10°C. Pack sun protection. Worth having: rain gear. About 10 days see rain.

sun protectionrain gear

UV index in Guarda in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Guarda peaks around July 17 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	10	9	6	5	2	2
Level	Low	Moderate	High	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	High
May	7	High
Jun	9	Very high
Jul	10	Very high
Aug	9	Very high
Sep	6	High
Oct	5	Moderate
Nov	2	Moderate
Dec	2	Low

Air quality in Guarda in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Guarda is worst in August — around 40 µg/m³ PM2.5 (poor), about 6.0× the cleanest month (November, 7 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	8	10	13	10	8	10	11	40	13	26	7	7
Level	Good	Good	Moderate	Good	Good	Good	Good	Poor	Moderate	Moderate	Good	Good

	PM2.5 (µg/m³)	Level
Jan	8	Good
Feb	10	Good
Mar	13	Moderate
Apr	10	Good
May	8	Good
Jun	10	Good
Jul	11	Good
Aug	40	Poor
Sep	13	Moderate
Oct	26	Moderate
Nov	7	Good
Dec	7	Good

Location & terrain

Where is Guarda?

Guarda sits at 40.5°N, 7.3°W, 1,008 m above sea level, in Portugal. The nearest listed city is Sequeira, 4.0 km away.

Topography around Guarda

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

Within 3 km, the terrain around Guarda has significant variations in elevation — a maximum elevation change of 260 m around an average of 891 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 887 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,942 m.

The land around Guarda is covered by grassland (53%) and trees (21%) within 3 km, grassland (62%) and trees (29%) within 16 km, and grassland (56%) and trees (35%) within 80 km.

3 km

260 m

grassland 53%

16 km

887 m

grassland 62%

80 km

1,942 m

grassland 56%

treesshrubsgrasslandcroplandartificial surfaceswater

← April Guarda year-round climate June →Best places to visit in May

May weather nearby: Sequeira 4.0 km · Covilhã 35 km · Viseu 56 km · Vila Nova de Foz Côa 61 km · Custoias 63 km · Castelo Branco 82 km · Arouca 93 km · Vila Real 94 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 Guarda (40.5375°, -7.2663°, elevation 1,008 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. 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).

	Avg high (°C)	Avg low (°C)
1	18	8
2	18	8
3	18	8
4	18	8
5	18	8
6	18	8
7	18	9
8	18	9
9	19	9
10	19	9
11	19	9
12	19	9
13	19	9
14	19	9
15	20	9
16	20	10
17	20	10
18	20	10
19	20	10
20	20	10
21	21	10
22	21	10
23	21	10
24	21	11
25	21	11
26	22	11
27	22	11
28	22	11
29	22	11
30	22	11
31	22	11

	Clearer (%)	Cloudier (%)
1	42	58
2	43	57
3	43	57
4	43	57
5	43	57
6	43	57
7	43	57
8	43	57
9	44	56
10	45	55
11	45	55
12	45	55
13	47	53
14	46	54
15	48	52
16	48	52
17	49	51
18	50	50
19	51	49
20	52	48
21	53	47
22	53	47
23	54	46
24	55	45
25	55	45
26	55	45
27	57	43
28	57	43
29	57	43
30	57	43
31	58	42

	Rain chance (%)
1	33
2	33
3	34
4	34
5	34
6	34
7	34
8	34
9	34
10	34
11	34
12	34
13	34
14	33
15	33
16	32
17	32
18	31
19	30
20	30
21	29
22	28
23	28
24	27
25	26
26	26
27	25
28	25
29	24
30	23
31	23

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	98	2
13	98	2
14	98	2
15	98	2
16	98	2
17	98	2
18	97	3
19	97	3
20	97	3
21	96	4
22	96	4
23	95	5
24	95	5
25	94	6
26	94	6
27	94	6
28	93	7
29	93	7
30	93	7
31	92	8

	Avg high (°C)	Avg low (°C)
1	18	8
2	18	8
3	18	8
4	18	8
5	18	8
6	18	8
7	18	9
8	18	9
9	19	9
10	19	9
11	19	9
12	19	9
13	19	9
14	19	9
15	20	9
16	20	10
17	20	10
18	20	10
19	20	10
20	20	10
21	21	10
22	21	10
23	21	10
24	21	11
25	21	11
26	22	11
27	22	11
28	22	11
29	22	11
30	22	11
31	22	11

	Clearer (%)	Cloudier (%)
1	42	58
2	43	57
3	43	57
4	43	57
5	43	57
6	43	57
7	43	57
8	43	57
9	44	56
10	45	55
11	45	55
12	45	55
13	47	53
14	46	54
15	48	52
16	48	52
17	49	51
18	50	50
19	51	49
20	52	48
21	53	47
22	53	47
23	54	46
24	55	45
25	55	45
26	55	45
27	57	43
28	57	43
29	57	43
30	57	43
31	58	42

	Rain chance (%)
1	33
2	33
3	34
4	34
5	34
6	34
7	34
8	34
9	34
10	34
11	34
12	34
13	34
14	33
15	33
16	32
17	32
18	31
19	30
20	30
21	29
22	28
23	28
24	27
25	26
26	26
27	25
28	25
29	24
30	23
31	23

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	98	2
13	98	2
14	98	2
15	98	2
16	98	2
17	98	2
18	97	3
19	97	3
20	97	3
21	96	4
22	96	4
23	95	5
24	95	5
25	94	6
26	94	6
27	94	6
28	93	7
29	93	7
30	93	7
31	92	8

	Avg high (°C)	Avg low (°C)
1	18	8
2	18	8
3	18	8
4	18	8
5	18	8
6	18	8
7	18	9
8	18	9
9	19	9
10	19	9
11	19	9
12	19	9
13	19	9
14	19	9
15	20	9
16	20	10
17	20	10
18	20	10
19	20	10
20	20	10
21	21	10
22	21	10
23	21	10
24	21	11
25	21	11
26	22	11
27	22	11
28	22	11
29	22	11
30	22	11
31	22	11

	Clearer (%)	Cloudier (%)
1	42	58
2	43	57
3	43	57
4	43	57
5	43	57
6	43	57
7	43	57
8	43	57
9	44	56
10	45	55
11	45	55
12	45	55
13	47	53
14	46	54
15	48	52
16	48	52
17	49	51
18	50	50
19	51	49
20	52	48
21	53	47
22	53	47
23	54	46
24	55	45
25	55	45
26	55	45
27	57	43
28	57	43
29	57	43
30	57	43
31	58	42

	Rain chance (%)
1	33
2	33
3	34
4	34
5	34
6	34
7	34
8	34
9	34
10	34
11	34
12	34
13	34
14	33
15	33
16	32
17	32
18	31
19	30
20	30
21	29
22	28
23	28
24	27
25	26
26	26
27	25
28	25
29	24
30	23
31	23

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	98	2
13	98	2
14	98	2
15	98	2
16	98	2
17	98	2
18	97	3
19	97	3
20	97	3
21	96	4
22	96	4
23	95	5
24	95	5
25	94	6
26	94	6
27	94	6
28	93	7
29	93	7
30	93	7
31	92	8