Néa Ionía weather in May

In May, Néa Ionía sees average daytime highs of 21°C and overnight lows near 15°C, with 45 mm of rain across 5.9 wet days and about 14.1 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 23°C by the end. The sky is clear or mostly clear about 54% 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 30 min by month's end. Set against the rest of the year, May is Néa Ionía's 5th-clearest and 9th-windiest month. For the whole year in context, see Néa Ionía's year-round climate.

Daytime high
21°
5th warmest
Overnight low
15°
7th coldest
Rainfall
45 mm
5.9 wet days
Daylight
14 h 12 min
5:20 AM – 7:29 PM
Cloud cover
41%
5th clearest
Wind
10 km/h
9th windiest
Solar energy
6.58 kWh/m²
Travel score
7.4
out of 10

Néa Ionía is city in Magnesia, Thessaly, Greece.

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 19°C in the first days to 23°C by the end.

A typical May day in Néa Ionía reaches about 21°C in the afternoon and slips back to 15°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 24°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
11913
21913
31913
41913
51914
62014
72014
82014
92014
102014
112015
122115
132115
142115
152115
162115
172115
182115
192216
202216
212216
222216
232216
242216
252216
262217
272317
282317
292317
302317
312317

Néa Ionía 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
Jan10° / 9610.41.59.52.4
Feb11° / 8310.41.710.52.8
Mar13° / 849.90.511.73.9
Apr17° / 11°507.30135.8
May21° / 15°455.9014.17.4
Jun25° / 20°213.8014.78.4
Jul28° / 22°262.8014.58.3
Aug28° / 22°213.3013.58.1
Sep24° / 19°606.1012.38.1
Oct20° / 15°888.20116.7
Nov15° / 11°839.209.84.9
Dec11° / 11011.31.29.32.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% 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 30%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16634
26634
36535
46535
56535
66634
76634
86634
96733
106733
116733
126733
136832
146832
156931
166931
177030
187030
197030
207129
217129
227228
237228
247327
257327
267525
277525
287624
297723
307723
317921

Chance of precipitation in May

Any precipitation

Néa Ionía gets around 45 mm of rain over 5.9 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 19% and peaks near 20% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
119
219
319
418
518
618
718
817
917
1018
1118
1218
1318
1418
1518
1618
1719
1819
1919
2020
2120
2220
2320
2420
2520
2620
2720
2820
2920
3020
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 (%)
1841600
2831700
3801910
4782110
5772210
6742420
7722620
8702730
9682930
10663040
11633250
12603460
13583570
14553780
15523990
165040100
174842110
184543120
194344130
204144140
213945160
223746170
233646190
243446200
253246220
263145230
273045250
282844270
292743291
302642311
312442331

Wind in May

Winds average 10 km/h in May.

Across May, 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.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 36 min at the start of May to 14 h 30 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 5:36 AM to 5:09 AM, and sunset from 7:15 PM to 7:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:367:15
213.75:357:16
313.75:347:17
413.75:337:18
513.85:327:19
613.85:307:19
713.95:297:20
813.95:287:21
913.95:277:22
1014.05:267:23
1114.05:257:24
1214.05:247:25
1314.15:237:26
1414.15:227:27
1514.15:217:28
1614.25:207:29
1714.25:197:30
1814.25:187:31
1914.25:177:32
2014.35:167:33
2114.35:167:34
2214.35:157:35
2314.45:147:35
2414.45:137:36
2514.45:137:37
2614.45:127:38
2714.55:127:39
2814.55:117:40
2914.55:107:40
3014.55:107:41
3114.55:097:42

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.58 kWh/m².

For context, solar energy here swings from a low near 1.68 kWh/m² to a high of 7.32 kWh/m² in June across the year — May's 6.58 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.4Intense
86.4Intense
96.4Intense
106.4Intense
116.5Intense
126.5Intense
136.5Intense
146.5Intense
156.5Intense
166.6Intense
176.6Intense
186.6Intense
196.6Intense
206.7Intense
216.7Intense
226.7Intense
236.7Intense
246.8Intense
256.8Intense
266.8Intense
276.9Intense
286.9Intense
296.9Intense
307.0Intense
317.0Intense
Planning a trip in May

Is May a good time to visit Néa Ionía?

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

7.4
Sightseeing
5th-best month of the year
4.6
Beach & pool
5th-best month of the year

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

What to pack for Néa Ionía in May

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

In May, Néa Ionía sees daytime highs around 21°C and nights near 15°C. Pack sun protection. About 6 days see rain.

sun protection

Sea temperature near Néa Ionía 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 32 km away) is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from May 27 to Oct 27 — about 5.1 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May19Cool
Jun23Refreshing
Jul25Warm
Aug26Warm
Sep24Warm
Oct21Refreshing
Nov18Cool
Dec16Cool

UV index in Néa Ionía 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 Néa Ionía peaks around June 22 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 22UV 9Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr7Very high
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep7High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Néa Ionía 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 Néa Ionía is worst in August — around 16 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodAug 1615 µg/m³Dec 148 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar14Moderate
Apr13Moderate
May12Good
Jun10Good
Jul10Good
Aug16Moderate
Sep9Good
Oct9Good
Nov9Good
Dec8Good
Location & terrain

Where is Néa Ionía?

Néa Ionía sits at 39.4°N, 22.9°E, 34 m above sea level, in Greece. The nearest listed city is Volos, 2.0 km away.

LárisaLamíaKardítsaTríkalaLivadeiáKateríniDelphi

Topography around Néa Ionía

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

Within 3 km, the terrain around Néa Ionía has significant variations in elevation — a maximum elevation change of 379 m around an average of 60 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,603 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,945 m.

The land around Néa Ionía is covered by artificial surfaces (41%), grassland (25%) and trees (21%) within 3 km, trees (45%) and water (23%) within 16 km, and water (45%) and trees (29%) within 80 km.

3 km
379 m
16 km
1,603 m
80 km
1,945 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Volos 2.0 km · Lárisa 52 km · Lamía 68 km · Kardítsa 86 km · Tríkala 101 km · Livadeiá 105 km · Kateríni 105 km · Delphi 107 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 Néa Ionía (39.379°, 22.9275°, elevation 34 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).