Patras weather in May

In May, Patras sees average daytime highs of 22°C and overnight lows near 14°C, with 52 mm of rain across 8.5 wet days and about 14 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 24°C by the end. The sky is clear or mostly clear about 52% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 36 min at the start of May to 14 h 24 min by month's end. Set against the rest of the year, May is Patras's 5th-clearest and 7th-windiest month. For the whole year in context, see Patras's year-round climate.

Daytime high
22°
5th warmest
Overnight low
14°
7th coldest
Rainfall
52 mm
8.5 wet days
Daylight
14 h 06 min
5:27 AM – 7:31 PM
Cloud cover
42%
5th clearest
Wind
6 km/h
7th windiest
Solar energy
6.5 kWh/m²
Travel score
7.3
out of 10

Patras is city in Greece.

Density
1,340/km²
people per km²

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 20°C in the first days to 24°C by the end.

A typical May day in Patras reaches about 22°C in the afternoon and slips back to 14°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 27°C. Set against its neighbours, May runs about 5°C warmer than April and about 5°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12012
22012
32012
42112
52112
62113
72113
82113
92113
102213
112213
122213
132213
142214
152214
162214
172214
182214
192314
202314
212314
222315
232315
242315
252315
262315
272415
282415
292415
302416
312416

Patras weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan11° / 11811.50.39.62.8
Feb12° / 11111.90.510.53.0
Mar14° / 9911.90.111.74.1
Apr18° / 10°709.70135.8
May22° / 14°528.50147.3
Jun27° / 18°234.1014.67.9
Jul30° / 21°133.3014.46.7
Aug30° / 21°143.3013.56.3
Sep26° / 18°516.8012.37.7
Oct22° / 14°748.10117.2
Nov17° / 10°12310.809.95.4
Dec13° / 12613.10.29.43.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 20% of May, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17129
27030
37129
47129
57129
67129
77228
87228
97228
107129
117129
127129
137129
147129
157030
167030
177030
187030
197030
207030
217228
227228
237327
247327
257426
267525
277624
287723
297822
307921
318020

Chance of precipitation in May

Any precipitation

Patras gets around 52 mm of rain over 8.5 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 26% and peaks near 29% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
128
228
328
428
528
629
729
829
929
1029
1129
1228
1328
1428
1527
1627
1727
1827
1927
2027
2126
2226
2326
2425
2525
2624
2723
2823
2922
3021
3120

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 52% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1881200
2861400
3841600
4821800
5802000
6782200
7752500
8722710
9702910
10683110
11653410
12623620
13603820
14564130
15544330
16504640
17474850
18445060
19415270
20395380
21375490
223456100
233256120
243057130
252857150
262757160
272557171
282456191
292356201
302255221
312155231

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 36 min at the start of May to 14 h 24 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 5:43 AM to 5:17 AM, and sunset from 7:17 PM to 7:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:437:17
213.65:427:18
313.65:417:19
413.75:407:20
513.75:387:21
613.75:377:22
713.85:367:23
813.85:357:24
913.85:347:25
1013.95:337:26
1113.95:327:27
1213.95:317:28
1314.05:307:29
1414.05:297:29
1514.05:287:30
1614.15:277:31
1714.15:267:32
1814.15:267:33
1914.25:257:34
2014.25:247:35
2114.25:237:36
2214.25:237:37
2314.35:227:37
2414.35:217:38
2514.35:217:39
2614.35:207:40
2714.45:197:41
2814.45:197:41
2914.45:187:42
3014.45:187:43
3114.45:177:44

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.5 kWh/m².

For context, solar energy here swings from a low near 1.85 kWh/m² to a high of 7.32 kWh/m² in June across the year — May's 6.5 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.4Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.6Intense
216.6Intense
226.6Intense
236.7Intense
246.7Intense
256.7Intense
266.7Intense
276.8Intense
286.8Intense
296.8Intense
306.9Intense
316.9Intense
Planning a trip in May

Hazard calendar for Patras

In seasonPeak

None of Patras's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Patras's rainy season runs October–April, 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 Patras?

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

7.3
Sightseeing
3rd-best month of the year
5.2
Beach & pool
5th-best month of the year

May is one of the better times to visit Patras for general sightseeing.

What to pack for Patras in May

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

In May, Patras sees daytime highs around 22°C and nights near 14°C. Pack sun protection. Worth having: light clothes and rain gear. About 9 days see rain.

sun protectionlight clothesrain gear

Sea temperature near Patras in May

The nearest coast averages about 19°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 17 km away) is warmest in August at about 26°C and coldest in February near 15°C.

It's comfortable for a long swim from May 28 to Nov 16 — about 5.7 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb15Bracing
Mar15Bracing
Apr16Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec17Cool

UV index in Patras 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 Patras peaks around June 21 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighHighVery highHighModerateJun 21UV 9Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5High
Apr7Very high
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Patras 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 Patras is worst in April — around 16 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1616 µg/m³Dec 139 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar15Moderate
Apr16Moderate
May15Moderate
Jun12Moderate
Jul13Moderate
Aug15Moderate
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Patras?

Patras sits at 38.2°N, 21.7°E, 52 m above sea level, in Greece. The nearest listed city is Aígio, 30 km away.

AgrínioAmaliádaArchaia OlympiaPýrgosDelphiZakynthosLamía

Topography around Patras

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

Within 3 km, the terrain around Patras has significant variations in elevation — a maximum elevation change of 267 m around an average of 33 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,919 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,466 m.

The land around Patras is covered by water (41%), artificial surfaces (36%) and trees (20%) within 3 km, water (43%) and trees (37%) within 16 km, and trees (52%) and water (27%) within 80 km.

3 km
267 m
16 km
1,919 m
80 km
2,466 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Aígio 30 km · Agrínio 51 km · Amaliáda 60 km · Archaia Olympia 67 km · Pýrgos 69 km · Delphi 71 km · Zakynthos 90 km · Lamía 95 km

Greece travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$26,948
2025
Happiness
5.7 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
0.8
per 100k, 2023
Road deaths
8.3
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 592
Religion
other 3%Muslim 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 Patras (38.2462°, 21.7351°, elevation 52 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).