Néa Ionía weather in September

In September, Néa Ionía sees average daytime highs of 24°C and overnight lows near 19°C, with 60 mm of rain across 6.1 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 23°C by the end. The sky is clear or mostly clear about 68% of the time in September, and the air most often feels humid.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Néa Ionía's 4th-clearest and 8th-windiest month. For the whole year in context, see Néa Ionía's year-round climate.

Daytime high
24°
4th warmest
Overnight low
19°
9th coldest
Rainfall
60 mm
6.1 wet days
Daylight
12 h 18 min
6:15 AM – 6:30 PM
Cloud cover
31%
4th clearest
Wind
10 km/h
8th windiest
Solar energy
4.89 kWh/m²
Travel score
8.1
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 September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 26°C in the first days to 23°C by the end.

A typical September day in Néa Ionía reaches about 24°C in the afternoon and slips back to 19°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 27°C. Set against its neighbours, September runs about 3°C cooler than August and about 4°C warmer than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12621
22621
32621
42621
52620
62520
72520
82520
92520
102520
112520
122520
132519
142419
152419
162419
172419
182419
192419
202419
212419
222318
232318
242318
252318
262318
272318
282318
292318
302217

Néa Ionía weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 7th-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 September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 68% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
19010
28911
38812
48812
58713
68713
78614
88614
98515
108416
118416
128317
138317
148218
158218
168020
178020
187921
197921
207723
217723
227624
237525
247426
257426
267327
277327
287228
297129
307129

Chance of precipitation in September

Any precipitation

Néa Ionía gets around 60 mm of rain over 6.1 wet days in September. 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 22% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
116
217
317
418
518
618
718
818
918
1018
1118
1218
1318
1419
1519
1619
1719
1820
1920
2021
2121
2221
2321
2422
2521
2621
2721
2821
2921
3022

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 40% of days. Sticky, muggy-or-worse air turns up on roughly 13% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
182143271
292243251
392343241
4102443221
5112543211
6112643191
7122743181
8122743170
9122844160
10122844150
11132944140
12132945130
13133045120
14143045110
15153045100
16153144100
1716314490
1817314390
1918314280
2019314180
2121314080
2222323970
2323323870
2424323670
2525333570
2626333370
2727343270
2828343070
2929352970
3029362870

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
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
2610calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over September. Sunrise moves from 6:01 AM to 6:29 AM, and sunset from 6:55 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:016:55
212.96:026:54
312.86:036:52
412.86:046:50
512.76:056:49
612.76:066:47
712.66:076:45
812.66:076:44
912.66:086:42
1012.56:096:40
1112.56:106:39
1212.46:116:37
1312.46:126:35
1412.36:136:34
1512.36:146:32
1612.36:156:30
1712.26:166:29
1812.26:176:27
1912.16:186:25
2012.16:196:23
2112.06:206:22
2212.06:216:20
2311.96:226:18
2411.96:236:17
2511.96:246:15
2611.86:256:13
2711.86:266:12
2811.76:276:10
2911.76:286:08
3011.66:296:07

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.89 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 — September's 4.89 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.7Bright
35.6Bright
45.6Bright
55.5Bright
65.5Bright
75.4Bright
85.3Bright
95.3Bright
105.2Bright
115.2Bright
125.1Bright
135.0Bright
145.0Bright
154.9Bright
164.9Bright
174.8Bright
184.8Bright
194.7Bright
204.6Bright
214.6Bright
224.5Bright
234.5Bright
244.4Bright
254.3Bright
264.3Bright
274.2Bright
284.2Bright
294.1Bright
304.1Bright
Planning a trip in September

Is September a good time to visit Néa Ionía?

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

8.1
Sightseeing
3rd-best month of the year
6.8
Beach & pool
4th-best month of the year

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

What to pack for Néa Ionía in September

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

In September, Néa Ionía sees daytime highs around 24°C and nights near 19°C. Worth packing: light clothes and sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near Néa Ionía in September

The nearest coast averages about 24°C in September — 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 September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September 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
September 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).