Climate and average weather in Naxos

In Naxos, the summers are humid, warm, dry, and clear and the winters are cool, windy, and partly cloudy.

Best: mid May to mid October

Over the course of the year, the temperature in Naxos typically varies from 12°C to 25°C, and is rarely below 8°C or above 27°C. August is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Naxos for warm-weather activities is from mid May to mid October.

Hottest
Aug
25°
Coldest
Jan
12°
Wettest
Jan
82 mm
Driest
Jul
0 mm
Rain / yr
358 mm
54 wet days
Daylight
9.4–14.6 h
shortest–longest
Elevation
0 m
37.1°N
Clearest
Jul
1% cloud

Naxos is chief town of Naxos island, Cyclades, Greece.

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

Naxos weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around mid May to mid October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Naxos, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 3.6 months, from June 12 to September 29, with daily high temperatures above 22°C. The hottest month of the year in Naxos is August, with an average high of 25°C and low of 24°C.

The cool season lasts 4.2 months, from December 6 to April 12, with daily high temperatures below 16°C. The coldest month of the year in Naxos is January, with an average low of 12°C and high of 14°C.

Days typically run about 1°C warmer than nights year-round.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan1412
Feb1412
Mar1513
Apr1615
May1918
Jun2321
Jul2523
Aug2524
Sep2322
Oct2119
Nov1816
Dec1514

Average hourly temperature in Naxos

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on August afternoons, near 25°C, and coldest before dawn in January, near 12°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Naxos weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan14° / 12°8211.39.74.0
Feb14° / 12°659.310.64.2
Mar15° / 13°436.611.75.0
Apr16° / 15°173.312.96.4
May19° / 18°81.6148.0
Jun23° / 21°10.214.59.4
Jul25° / 23°0014.39.8
Aug25° / 24°0013.49.7
Sep23° / 22°61.112.39.3
Oct21° / 19°283.7117.9
Nov18° / 16°426.4106.5
Dec15° / 14°6710.29.54.7

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Naxos gets about 358 mm of precipitation a year. On a typical day the chance of rain is mostly dry, but that rises and falls sharply with the seasons.

The wetter season lasts 5.4 months, from around Oct 25 to Apr 7, peaking in January at about 37% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 26.

January is the wettest month by volume, with 82 mm over about 11 wet days; July is the driest, with 0 mm.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetJan 4 · 37%Jun 26 · 0%
Rain on a day (%)Rain days
Jan3511
Feb339
Mar227
Apr113
May52
Jun10
Jul00
Aug00
Sep41
Oct124
Nov216
Dec3310

Monthly rainfall

Over a full year, Naxos collects about 358 mm of rain across 54 wet days — roughly 30 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 82 mm, while July is the driest at just 0 mm. The three wettest months alone bring about 60% of the year’s total.

0255075100JanFebMarAprMayJunJulAugSepOctNovDec8265431781006284267
Rainfall (mm)Rain days
Jan8211
Feb659
Mar437
Apr173
May82
Jun10
Jul00
Aug00
Sep61
Oct284
Nov426
Dec6710

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Naxos, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around April 24 and lasts for 5.8 months, ending around October 17. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 100% of the time on average.

The cloudier part of the year begins around October 18 and lasts for 6.2 months, ending around April 23. The cloudiest month is January, when it is overcast or mostly cloudy 46% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecJul 5 · 100%Jan 6 · 53%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan5446
Feb6139
Mar7030
Apr7624
May8515
Jun964
Jul1000
Aug1000
Sep955
Oct8020
Nov6535
Dec5545

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 20, brings about 14 h 36 min of light; the shortest, around December 20, only 9 h 24 min — a swing of roughly 5 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan9.77:365:19
Feb10.67:165:51
Mar11.76:376:19
Apr12.95:506:47
May14.05:157:14
Jun14.55:037:35
Jul14.35:157:34
Aug13.45:407:06
Sep12.36:066:20
Oct11.06:335:34
Nov10.07:045:03
Dec9.57:314:59

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Naxos averages about 20 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 10 and 30 days.

The sunnier stretch runs 5.6 months, from around Apr 29 to Oct 16. The sunniest month is July, with roughly 30 sunny days (brilliant).

The greyest month is January, down near 10 sunny days — about 66% fewer than the July peak.

05101520253035JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJul 630 daysJan 210 days
Sunny daysSky
Jan11Mixed
Feb11Mixed
Mar17Bright
Apr19Bright
May23Bright
Jun28Brilliant
Jul31Brilliant
Aug31Brilliant
Sep27Brilliant
Oct21Bright
Nov15Mixed
Dec11Mixed

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Naxos, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 5.4 months, from around May 15 to October 24. The muggiest month is July, when the air feels humid, muggy or worse about 100% of the time.

The most comfortable stretch runs from around October 25 to May 14, and March is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecMar 15 · 100%Jul 11 · 0%oppressivecomfortablehumiddrymuggycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan9550000
Feb9550000
Mar88120000
Apr61363000
May153942400
Jun16414660
Jul001460260
Aug01857341
Sep2132646130
Oct1830331820
Nov522918200
Dec84142000

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Naxos is typically breezy, near 26 km/h, and varies moderately with the seasons.

The windier part of the year lasts 4.1 months, from around Nov 25 to Mar 30. The windiest month is February, averaging about 29 km/h (windy).

The calmer part of the year runs from around Mar 31 to Jun 30, with May the calmest month at about 21 km/h.

05101520253035JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezebreezywindyFeb 4 · 30 km/hMay 24 · 20 km/h
Wind speed (km/h)Feels
Jan29windy
Feb29windy
Mar27breezy
Apr24breezy
May21breezy
Jun23breezy
Jul28breezy
Aug28breezy
Sep25breezy
Oct25breezy
Nov26breezy
Dec28breezy

Best time to visit Naxos

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Naxos throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around early October, Naxos is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Naxos for general outdoor tourist activities is from mid May to mid October, with a peak score in the first week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 3 · 9.9

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan4.0fair
Feb4.2fair
Mar5.0fair
Apr6.4good
May8.0ideal
Jun9.4ideal
Jul9.8ideal
Aug9.7ideal
Sep9.3ideal
Oct7.9ideal
Nov6.5good
Dec4.7fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Naxos for hot-weather activities is from mid June to late September, with a peak score in the second week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 8 · 8.6

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Naxos, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around August (highs near 25°C), the essentials are light clothes, sun protection and a windbreaker. In the cold season around January (highs near 14°C), pack a warm layer, rain gear and a windbreaker.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Naxos sees daytime highs around 25°C and nights near 24°C. Pack sun protection and a windbreaker. Worth having: light clothes.

Sea temperature near Naxos

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea offshore is warmest in August at about 24°C and coldest in February near 16°C.

It's comfortable for a long swim from Jun 1 to Nov 2 — about 5.1 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb16Cool
Mar16Cool
Apr17Cool
May18Cool
Jun22Refreshing
Jul23Refreshing
Aug24Refreshing
Sep23Refreshing
Oct21Refreshing
Nov19Cool
Dec17Cool

UV index (midday) in Naxos by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Naxos peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highHighModerateJun 23UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr8Very high
May7Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep7Very high
Oct5High
Nov3Moderate
Dec2Low

Average hourly UV index in Naxos

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in June the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 5.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan00
Feb10
Mar4.50
Apr73.5
May7.54
Jun8.55.5
Jul85.5
Aug7.55
Sep6.53.5
Oct50
Nov10
Dec00
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Naxos is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Naxos banks about 3,008 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.

01,0002,0003,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan92
Feb83
Mar118
Apr167
May265
Jun361
Jul434
Aug447
Sep385
Oct311
Nov210
Dec135

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Naxos receives about 5.2 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.1 and 8.0 kWh/m².

The brighter stretch of the year lasts 6.2 months, from around Mar 22 to Sep 25. The brightest month is June, averaging about 7.9 kWh/m² (intense).

The dimmest month is December, down near 2.2 kWh/m² — roughly 72% less than the June peak.

0123456789JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 278.0 kWhDec 212.1 kWh
Solar energy (kWh/m²)Level
Jan2.5Moderate
Feb3.4Moderate
Mar4.9Bright
Apr6.3Intense
May7.2Intense
Jun7.9Intense
Jul7.8Intense
Aug7.1Intense
Sep5.7Bright
Oct4.1Bright
Nov2.8Moderate
Dec2.1Moderate

Where is Naxos?

Naxos sits at 37.1°N, 25.4°E, 0 m above sea level, in Greece. The nearest listed city is Paros, 20 km away.

OiaFiraArtémidaChiosÇeşmeKoropí

Topography around Naxos

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

Within 3 km, the terrain around Naxos has significant variations in elevation — a maximum elevation change of 323 m around an average of 26 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 985 m; within 80 km, large variations in elevation — a maximum elevation change of 996 m.

The land around Naxos is covered by water (55%) and grassland (23%) within 3 km, water (55%) and grassland (26%) within 16 km, and water (92%) within 80 km.

3 km
323 m
16 km
985 m
80 km
996 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
Nearby: Paros 20 km · Mykonos 38 km · Oia 71 km · Fira 76 km · Artémida 155 km · Chios 156 km · Çeşme 158 km · Koropí 159 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 Naxos (37.1056°, 25.3764°, 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).