Nafplio weather in May

In May, Nafplio sees average daytime highs of 24°C and overnight lows near 13°C, with 25 mm of rain across 4.4 wet days and about 14 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 26°C by the end. The sky is clear or mostly clear about 57% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 30 min at the start of May to 14 h 24 min by month's end. Set against the rest of the year, May is Nafplio's 5th-clearest and 8th-windiest month. For the whole year in context, see Nafplio's year-round climate.

Daytime high
24°
5th warmest
Overnight low
13°
7th coldest
Rainfall
25 mm
4.4 wet days
Daylight
14 hours
5:25 AM – 7:25 PM
Cloud cover
38%
5th clearest
Wind
7 km/h
8th windiest
Solar energy
6.66 kWh/m²
Travel score
8.1
out of 10

Nafplio is town in Argolis, Peloponnese, Greece.

Density
434/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 22°C in the first days to 26°C by the end.

A typical May day in Nafplio reaches about 24°C in the afternoon and slips back to 13°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 28°C. Set against its neighbours, May runs about 5°C warmer than April and about 5°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12111
22211
32212
42212
52212
62212
72312
82312
92312
102313
112313
122413
132413
142413
152413
162413
172414
182414
192514
202514
212514
222514
232514
242515
252515
262515
272615
282615
292615
302615
312615

Nafplio weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan12° / 6391.29.73.0
Feb12° / 598.71.510.63.5
Mar15° / 637.90.511.74.8
Apr19° / 325.9012.96.8
May24° / 13°254.40148.1
Jun29° / 18°162.8014.57.2
Jul31° / 21°71.5014.35.9
Aug31° / 21°91.9013.46.0
Sep27° / 18°344.3012.37.7
Oct22° / 14°385.40117.6
Nov17° / 10°556.50105.9
Dec13° / 6490.79.53.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 24%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17129
27228
37327
47426
57426
67525
77525
87624
97624
107624
117624
127624
137624
147525
157525
167525
177426
187426
197525
207525
217525
227525
237624
247624
257723
267723
277921
287921
298020
308119
318218

Chance of precipitation in May

Any precipitation

Nafplio gets around 25 mm of rain over 4.4 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 14% and peaks near 16% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
116
216
316
416
515
615
715
815
914
1014
1114
1214
1313
1413
1513
1613
1713
1813
1913
2013
2114
2214
2314
2414
2514
2614
2714
2814
2914
3013
3113

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 87% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19910
29820
39820
49820
59730
69730
79730
89640
99550
109550
119460
129370
139370
149280
159190
1690100
1788120
1887130
1986140
2084160
2182171
2281181
2379201
2478211
2576222
2675232
2774242
2872262
2970273
3068293
3167303

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 30 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 54 minutes over May. Sunrise moves from 5:40 AM to 5:15 AM, and sunset from 7:12 PM to 7:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:407:12
213.65:397:13
313.65:387:14
413.65:377:15
513.75:357:16
613.75:347:16
713.75:337:17
813.85:327:18
913.85:317:19
1013.85:307:20
1113.95:297:21
1213.95:287:22
1313.95:277:23
1414.05:267:24
1514.05:257:25
1614.05:257:25
1714.05:247:26
1814.15:237:27
1914.15:227:28
2014.15:217:29
2114.25:217:30
2214.25:207:31
2314.25:197:31
2414.25:197:32
2514.35:187:33
2614.35:177:34
2714.35:177:35
2814.35:167:35
2914.35:167:36
3014.45:157:37
3114.45:157:37

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.66 kWh/m².

For context, solar energy here swings from a low near 1.89 kWh/m² to a high of 7.38 kWh/m² in June across the year — May's 6.66 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.4Intense
36.4Intense
46.4Intense
56.4Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.6Intense
126.6Intense
136.6Intense
146.6Intense
156.7Intense
166.7Intense
176.7Intense
186.7Intense
196.7Intense
206.7Intense
216.8Intense
226.8Intense
236.8Intense
246.8Intense
256.8Intense
266.9Intense
276.9Intense
286.9Intense
297.0Intense
307.0Intense
317.0Intense
Planning a trip in May

Is May a good time to visit Nafplio?

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

8.1
Sightseeing
1st-best month of the year
6.7
Beach & pool
5th-best month of the year

May is one of the better times to visit Nafplio for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Nafplio in May

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

In May, Nafplio sees daytime highs around 24°C and nights near 13°C. Pack sun protection. Worth having: light clothes. About 4 days see rain.

sun protectionlight clothes

Sea temperature near Nafplio 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 22 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 24 to Nov 21 — about 6 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar15Cool
Apr16Cool
May19Cool
Jun23Refreshing
Jul26Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov21Refreshing
Dec18Cool

UV index in Nafplio 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 Nafplio peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highHighModerateJun 23UV 9Jan 10UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5High
Apr8Very high
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep7Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Nafplio 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 Nafplio is worst in April — around 17 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateGoodApr 1416 µg/m³Dec 1310 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb14Moderate
Mar16Moderate
Apr17Moderate
May15Moderate
Jun12Moderate
Jul12Good
Aug14Moderate
Sep10Good
Oct11Good
Nov11Good
Dec10Good
Location & terrain

Where is Nafplio?

Nafplio sits at 37.6°N, 22.8°E, 0 m above sea level, in Greece. The nearest listed city is Árgos, 10 km away.

KórinthosSpartaMégaraSalamínaPéramaElefsína

Topography around Nafplio

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

Within 3 km, the terrain around Nafplio has significant variations in elevation — a maximum elevation change of 295 m around an average of 34 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,122 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,374 m.

The land around Nafplio is covered by water (38%) within 3 km, trees (29%), water (29%) and shrubs (22%) within 16 km, and trees (40%) and water (35%) within 80 km.

3 km
295 m
16 km
1,122 m
80 km
2,374 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Árgos 10 km · Trípoli 38 km · Kórinthos 43 km · Sparta 64 km · Mégara 67 km · Salamína 75 km · Pérama 81 km · Elefsína 83 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 Nafplio (37.5686°, 22.8069°, elevation 0 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).