Porto de Mós weather in May

In May, Porto de Mós sees average daytime highs of 19°C and overnight lows near 16°C, with 22 mm of rain across 4.1 wet days and about 14 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 18°C in the first days to 19°C by the end. The sky is clear or mostly clear about 61% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 13 h 30 min at the start of May to 14 h 18 min by month's end. Set against the rest of the year, May is Porto de Mós's 5th-clearest and 8th-windiest month. For the whole year in context, see Porto de Mós's year-round climate.

Daytime high: 19°; 6th warmest
Overnight low: 16°; 7th coldest
Rainfall: 22 mm; 4.1 wet days
Daylight: 14 hours; 5:32 AM – 7:30 PM
Cloud cover: 36%; 5th clearest
Wind: 20 km/h; 8th windiest
Solar energy: 7.18 kWh/m²
Travel score: 7.3; out of 10

← April Porto de Mós 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 19°C by the end.

A typical May day in Porto de Mós reaches about 19°C in the afternoon and slips back to 16°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 21°C. Set against its neighbours, May runs about 2°C warmer than April and about 2°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)	17	18	18	18	18	18	18	18	18	18	18	18	18	18	18	19	19	19	19	19	19	19	19	19	19	19	19	19	19	20	20
Avg low (°C)	15	15	15	15	15	15	15	15	15	15	15	15	15	15	16	16	16	16	16	16	16	16	16	16	16	16	16	16	17	17	17

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

Porto de Mós weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	15° / 12°	54	7.7	9.7	4.9
Feb	15° / 12°	47	6.3	10.6	5.0
Mar	16° / 13°	48	6.6	11.7	5.6
Apr	17° / 14°	37	6.3	12.9	6.1
May	19° / 16°	22	4.1	14	7.3
Jun	21° / 18°	4	0.8	14.5	8.5
Jul	22° / 19°	0	0.1	14.3	9.2
Aug	23° / 19°	2	0.3	13.4	9.2
Sep	22° / 19°	17	2.7	12.3	8.4
Oct	20° / 17°	60	6.8	11	7.1
Nov	18° / 15°	65	7.8	10	6.2
Dec	16° / 13°	82	8.3	9.5	5.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 61% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 23%. 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 (%)	70	72	72	72	73	73	74	74	74	75	75	76	76	76	76	78	78	78	79	79	80	80	80	81	81	81	81	81	82	82	82
Cloudier (%)	30	28	28	28	27	27	26	26	26	25	25	24	24	24	24	22	22	22	21	21	20	20	20	19	19	19	19	19	18	18	18

	Clearer (%)	Cloudier (%)
1	70	30
2	72	28
3	72	28
4	72	28
5	73	27
6	73	27
7	74	26
8	74	26
9	74	26
10	75	25
11	75	25
12	76	24
13	76	24
14	76	24
15	76	24
16	78	22
17	78	22
18	78	22
19	79	21
20	79	21
21	80	20
22	80	20
23	80	20
24	81	19
25	81	19
26	81	19
27	81	19
28	81	19
29	82	18
30	82	18
31	82	18

Chance of precipitation in May

Any precipitation

Porto de Mós gets around 22 mm of rain over 4.1 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 13% and peaks near 17% 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 (%)	17	17	17	17	17	17	17	16	16	16	16	16	15	15	15	14	14	13	13	12	12	11	10	10	9	8	8	7	7	6	6

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

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the comfortable band about 50% 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 (%)	63	61	60	59	58	56	55	52	51	50	48	47	46	44	43	42	41	40	39	37	36	34	33	31	30	28	26	25	24	22	21
Comfortable (%)	35	37	38	39	40	42	43	45	46	47	48	49	50	51	52	52	52	53	53	54	54	55	55	55	55	56	57	57	57	58	58
Humid (%)	2	2	2	2	2	2	2	3	3	3	3	4	4	5	5	6	7	7	8	9	10	11	12	14	15	16	17	18	19	20	21

	Dry (%)	Comfortable (%)	Humid (%)
1	63	35	2
2	61	37	2
3	60	38	2
4	59	39	2
5	58	40	2
6	56	42	2
7	55	43	2
8	52	45	3
9	51	46	3
10	50	47	3
11	48	48	3
12	47	49	4
13	46	50	4
14	44	51	5
15	43	52	5
16	42	52	6
17	41	52	7
18	40	53	7
19	39	53	8
20	37	54	9
21	36	54	10
22	34	55	11
23	33	55	12
24	31	55	14
25	30	55	15
26	28	56	16
27	26	57	17
28	25	57	18
29	24	57	19
30	22	58	20
31	21	58	21

Wind in May

Winds average 20 km/h in May.

Across May, daily wind ranges from about 20 km/h on the calmest days to 21 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)	21	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20
Feels	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy

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

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 30 min at the start of May to 14 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over May. Sunrise moves from 5:47 AM to 5:22 AM, and sunset from 7:17 PM to 7:42 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)	13.5	13.5	13.6	13.6	13.6	13.7	13.7	13.7	13.8	13.8	13.8	13.9	13.9	13.9	14.0	14.0	14.0	14.0	14.1	14.1	14.1	14.1	14.2	14.2	14.2	14.2	14.3	14.3	14.3	14.3	14.3
Sunrise (AM)	5:47	5:46	5:45	5:43	5:42	5:41	5:40	5:39	5:38	5:37	5:36	5:35	5:34	5:33	5:32	5:32	5:31	5:30	5:29	5:28	5:28	5:27	5:26	5:26	5:25	5:25	5:24	5:23	5:23	5:23	5:22
Sunset (PM)	7:17	7:18	7:19	7:20	7:21	7:22	7:22	7:23	7:24	7:25	7:26	7:27	7:28	7:29	7:29	7:30	7:31	7:32	7:33	7:34	7:35	7:35	7:36	7:37	7:38	7:39	7:39	7:40	7:41	7:41	7:42

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	13.5	5:47	7:17
2	13.5	5:46	7:18
3	13.6	5:45	7:19
4	13.6	5:43	7:20
5	13.6	5:42	7:21
6	13.7	5:41	7:22
7	13.7	5:40	7:22
8	13.7	5:39	7:23
9	13.8	5:38	7:24
10	13.8	5:37	7:25
11	13.8	5:36	7:26
12	13.9	5:35	7:27
13	13.9	5:34	7:28
14	13.9	5:33	7:29
15	14.0	5:32	7:29
16	14.0	5:32	7:30
17	14.0	5:31	7:31
18	14.0	5:30	7:32
19	14.1	5:29	7:33
20	14.1	5:28	7:34
21	14.1	5:28	7:35
22	14.1	5:27	7:35
23	14.2	5:26	7:36
24	14.2	5:26	7:37
25	14.2	5:25	7:38
26	14.2	5:25	7:39
27	14.3	5:24	7:39
28	14.3	5:23	7:40
29	14.3	5:23	7:41
30	14.3	5:23	7:41
31	14.3	5:22	7:42

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.18 kWh/m².

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 7.84 kWh/m² in July across the year — May's 7.18 kWh/m² sits near the top of that range.

	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)	6.8	6.8	6.8	6.9	6.9	6.9	7.0	7.0	7.0	7.0	7.1	7.1	7.1	7.2	7.2	7.2	7.2	7.3	7.3	7.3	7.3	7.3	7.4	7.4	7.4	7.4	7.5	7.5	7.5	7.5	7.5
Level	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	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	6.8	Intense
2	6.8	Intense
3	6.8	Intense
4	6.9	Intense
5	6.9	Intense
6	6.9	Intense
7	7.0	Intense
8	7.0	Intense
9	7.0	Intense
10	7.0	Intense
11	7.1	Intense
12	7.1	Intense
13	7.1	Intense
14	7.2	Intense
15	7.2	Intense
16	7.2	Intense
17	7.2	Intense
18	7.3	Intense
19	7.3	Intense
20	7.3	Intense
21	7.3	Intense
22	7.3	Intense
23	7.4	Intense
24	7.4	Intense
25	7.4	Intense
26	7.4	Intense
27	7.5	Intense
28	7.5	Intense
29	7.5	Intense
30	7.5	Intense
31	7.5	Intense

Planning a trip in May

Is May a good time to visit Porto de Mós?

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

7.3

Sightseeing

5th-best month of the year

2.8

Beach & pool

6th-best month of the year

May is one of the better times to visit Porto de Mós for general sightseeing.

What to pack for Porto de Mós in May

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

In May, Porto de Mós sees daytime highs around 19°C and nights near 16°C. Pack sun protection. Worth having: a windbreaker. About 4 days see rain.

sun protectiona windbreaker

Sea temperature near Porto de Mós in May

The nearest coast averages about 17°C in May — 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 20°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)	16	15	15	16	17	19	19	20	20	19	18	17
Comfort	Cool	Cool	Cool	Cool	Cool	Cool	Cool	Cool	Refreshing	Cool	Cool	Cool

	Sea temperature (°C)	Comfort
Jan	16	Cool
Feb	15	Cool
Mar	15	Cool
Apr	16	Cool
May	17	Cool
Jun	19	Cool
Jul	19	Cool
Aug	20	Cool
Sep	20	Refreshing
Oct	19	Cool
Nov	18	Cool
Dec	17	Cool

UV index in Porto de Mós 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 Porto de Mós peaks around July 14 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	2	3	7	8	7	9	10	9	6	5	3	2
Level	Moderate	Moderate	High	Very high	Very high	Very high	Very high	Very high	High	High	Moderate	Low

	UV index (midday)	Level
Jan	2	Moderate
Feb	3	Moderate
Mar	7	High
Apr	8	Very high
May	7	Very high
Jun	9	Very high
Jul	10	Very high
Aug	9	Very high
Sep	6	High
Oct	5	High
Nov	3	Moderate
Dec	2	Low

Location & terrain

Where is Porto de Mós?

Porto de Mós sits at 37.1°N, 8.7°W, 18 m above sea level, in Portugal. The nearest listed city is Lagos, 2.0 km away.

Topography around Porto de Mós

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

Within 3 km, the terrain around Porto de Mós has only modest variations in elevation — a maximum elevation change of 106 m around an average of 19 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 231 m; within 80 km, large variations in elevation — a maximum elevation change of 894 m.

The land around Porto de Mós is covered by water (59%) and grassland (20%) within 3 km, water (54%) and grassland (22%) within 16 km, and water (52%) and grassland (20%) within 80 km.

3 km

106 m

water 59%

16 km

231 m

water 54%

80 km

894 m

water 52%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwater

← April Porto de Mós year-round climate June →Best places to visit in May

May weather nearby: Lagos 2.0 km · Portimão 14 km · Albufeira 38 km · Quarteira 52 km · Loulé 59 km · Faro 68 km · Olhão 75 km · Quelfes 77 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 Porto de Mós (37.0853°, -8.6837°, elevation 18 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	15
2	18	15
3	18	15
4	18	15
5	18	15
6	18	15
7	18	15
8	18	15
9	18	15
10	18	15
11	18	15
12	18	15
13	18	15
14	18	15
15	18	16
16	19	16
17	19	16
18	19	16
19	19	16
20	19	16
21	19	16
22	19	16
23	19	16
24	19	16
25	19	16
26	19	16
27	19	16
28	19	16
29	19	17
30	20	17
31	20	17

	Clearer (%)	Cloudier (%)
1	70	30
2	72	28
3	72	28
4	72	28
5	73	27
6	73	27
7	74	26
8	74	26
9	74	26
10	75	25
11	75	25
12	76	24
13	76	24
14	76	24
15	76	24
16	78	22
17	78	22
18	78	22
19	79	21
20	79	21
21	80	20
22	80	20
23	80	20
24	81	19
25	81	19
26	81	19
27	81	19
28	81	19
29	82	18
30	82	18
31	82	18

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

	Dry (%)	Comfortable (%)	Humid (%)
1	63	35	2
2	61	37	2
3	60	38	2
4	59	39	2
5	58	40	2
6	56	42	2
7	55	43	2
8	52	45	3
9	51	46	3
10	50	47	3
11	48	48	3
12	47	49	4
13	46	50	4
14	44	51	5
15	43	52	5
16	42	52	6
17	41	52	7
18	40	53	7
19	39	53	8
20	37	54	9
21	36	54	10
22	34	55	11
23	33	55	12
24	31	55	14
25	30	55	15
26	28	56	16
27	26	57	17
28	25	57	18
29	24	57	19
30	22	58	20
31	21	58	21

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

	Clearer (%)	Cloudier (%)
1	70	30
2	72	28
3	72	28
4	72	28
5	73	27
6	73	27
7	74	26
8	74	26
9	74	26
10	75	25
11	75	25
12	76	24
13	76	24
14	76	24
15	76	24
16	78	22
17	78	22
18	78	22
19	79	21
20	79	21
21	80	20
22	80	20
23	80	20
24	81	19
25	81	19
26	81	19
27	81	19
28	81	19
29	82	18
30	82	18
31	82	18

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

	Dry (%)	Comfortable (%)	Humid (%)
1	63	35	2
2	61	37	2
3	60	38	2
4	59	39	2
5	58	40	2
6	56	42	2
7	55	43	2
8	52	45	3
9	51	46	3
10	50	47	3
11	48	48	3
12	47	49	4
13	46	50	4
14	44	51	5
15	43	52	5
16	42	52	6
17	41	52	7
18	40	53	7
19	39	53	8
20	37	54	9
21	36	54	10
22	34	55	11
23	33	55	12
24	31	55	14
25	30	55	15
26	28	56	16
27	26	57	17
28	25	57	18
29	24	57	19
30	22	58	20
31	21	58	21

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

	Clearer (%)	Cloudier (%)
1	70	30
2	72	28
3	72	28
4	72	28
5	73	27
6	73	27
7	74	26
8	74	26
9	74	26
10	75	25
11	75	25
12	76	24
13	76	24
14	76	24
15	76	24
16	78	22
17	78	22
18	78	22
19	79	21
20	79	21
21	80	20
22	80	20
23	80	20
24	81	19
25	81	19
26	81	19
27	81	19
28	81	19
29	82	18
30	82	18
31	82	18

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

	Dry (%)	Comfortable (%)	Humid (%)
1	63	35	2
2	61	37	2
3	60	38	2
4	59	39	2
5	58	40	2
6	56	42	2
7	55	43	2
8	52	45	3
9	51	46	3
10	50	47	3
11	48	48	3
12	47	49	4
13	46	50	4
14	44	51	5
15	43	52	5
16	42	52	6
17	41	52	7
18	40	53	7
19	39	53	8
20	37	54	9
21	36	54	10
22	34	55	11
23	33	55	12
24	31	55	14
25	30	55	15
26	28	56	16
27	26	57	17
28	25	57	18
29	24	57	19
30	22	58	20
31	21	58	21