Mytilene weather in December

In December, Mytilene sees average daytime highs of 13°C and overnight lows near 10°C, with 133 mm of precipitation across 12.2 wet days and about 9.3 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 14°C in the first days to 12°C by the end. The sky is clear or mostly clear about 35% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 30 min at the start of December to 9 h 18 min by month's end. Set against the rest of the year, December is Mytilene's 12th-clearest and 1st-windiest month. For the whole year in context, see Mytilene's year-round climate.

Daytime high
13°
10th warmest
Overnight low
10°
4th coldest
Precipitation
133 mm
12.2 wet days
Daylight
9 h 18 min
7:32 AM – 4:48 PM
Cloud cover
56%
12th clearest
Wind
22 km/h
1st windiest
Solar energy
1.93 kWh/m²
Travel score
3.6
out of 10

Mytilene is city on the Greek island of Lesbos.

Density
264/km²
people per km²

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 14°C in the first days to 12°C by the end.

A typical December day in Mytilene reaches about 13°C in the afternoon and slips back to 10°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 17°C. Set against its neighbours, December runs about 4°C cooler than November and about 1°C warmer than January.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
11512
21512
31411
41411
51411
61411
71411
81411
91411
101411
111310
121310
131310
141310
151310
161310
171310
181310
191310
201310
211310
221310
231310
241210
251210
261210
271210
281210
29129
30129
31129

Mytilene weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 12411.29.63.1
Feb12° / 10410.510.53.2
Mar14° / 10°748.511.74.4
Apr17° / 13°506.8136.1
May21° / 17°254.114.17.9
Jun26° / 21°81.714.78.9
Jul28° / 23°10.314.58.5
Aug28° / 23°10.313.58.4
Sep25° / 21°212.412.38.9
Oct21° / 17°635.6117.6
Nov17° / 13°1059.19.95.6
Dec13° / 10°13312.29.33.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35248
45347
55248
65248
75248
85347
95347
105248
115248
125248
135248
145248
155248
165248
175248
185248
195248
205149
215149
225050
235050
245050
254951
264951
274951
284852
294951
304951
314951

Chance of precipitation in December

Any precipitation

Mytilene gets around 133 mm of rain and snow over 12.2 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 40% and peaks near 41% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
236
336
437
537
638
738
839
939
1040
1140
1241
1341
1441
1541
1641
1741
1841
1941
2040
2140
2240
2340
2441
2541
2641
2741
2841
2941
3040
3140

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
183152
284142
386131
487121
588111
689101
79091
89181
99370
109370
119460
129550
139550
149640
159640
169640
179550
189550
199550
209460
219460
229460
239460
249460
259460
269460
279460
289460
299460
309460
319550

Wind in December

Winds average 22 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 21 km/h on the calmest days to 23 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
121breezy
221breezy
321breezy
421breezy
521breezy
621breezy
721breezy
821breezy
921breezy
1021breezy
1121breezy
1221breezy
1321breezy
1421breezy
1522breezy
1622breezy
1722breezy
1822breezy
1922breezy
2022breezy
2122breezy
2222breezy
2323breezy
2423breezy
2523breezy
2623breezy
2723breezy
2823breezy
2923breezy
3022breezy
3122breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 30 min at the start of December to 9 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:20 AM to 7:38 AM, and sunset from 4:47 PM to 4:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.57:204:47
29.47:214:47
39.47:224:47
49.47:234:47
59.47:244:47
69.47:244:47
79.47:254:47
89.37:264:47
99.37:274:47
109.37:284:47
119.37:284:47
129.37:294:47
139.37:304:47
149.37:314:47
159.37:314:48
169.37:324:48
179.37:334:48
189.37:334:49
199.37:344:49
209.37:344:49
219.27:354:50
229.27:354:50
239.27:364:51
249.37:364:51
259.37:374:52
269.37:374:52
279.37:374:53
289.37:384:54
299.37:384:54
309.37:384:55
319.37:384:56

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.93 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.93 kWh/m² to a high of 7.74 kWh/m² in June across the year — December's 1.93 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.1Moderate
22.1Moderate
32.1Moderate
42.0Moderate
52.0Moderate
62.0Moderate
72.0Dim
82.0Dim
92.0Dim
102.0Dim
111.9Dim
121.9Dim
131.9Dim
141.9Dim
151.9Dim
161.9Dim
171.9Dim
181.9Dim
191.9Dim
201.9Dim
211.9Dim
221.9Dim
231.9Dim
241.9Dim
251.9Dim
261.9Dim
271.9Dim
281.9Dim
291.9Dim
301.9Dim
311.9Dim
Planning a trip in December

Hazard calendar for Mytilene

In seasonPeak

In December, Mytilene sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Mytilene's rainy season runs October–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Mytilene?

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

3.6
Sightseeing
10th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Mytilene.

What to pack for Mytilene in December

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

In December, Mytilene sees daytime highs around 13°C and nights near 10°C. Worth packing: a warm layer, rain gear and a windbreaker. About 12 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Mytilene in December

The nearest coast averages about 17°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 24°C and coldest in February near 15°C.

It's comfortable for a long swim from May 31 to Oct 23 — about 4.8 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb15Bracing
Mar15Cool
Apr16Cool
May19Cool
Jun22Refreshing
Jul23Refreshing
Aug24Refreshing
Sep22Refreshing
Oct21Refreshing
Nov18Cool
Dec17Cool

UV index in Mytilene in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mytilene peaks around August 10 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highHighModerateLowAug 10UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr8Very high
May7Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep7High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Mytilene in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Mytilene is worst in March — around 16 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (December, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 1915 µg/m³Dec 188 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar16Moderate
Apr14Moderate
May13Moderate
Jun13Moderate
Jul11Good
Aug11Good
Sep10Good
Oct9Good
Nov11Good
Dec8Good
Location & terrain

Where is Mytilene?

Mytilene sits at 39.1°N, 26.6°E, 14 m above sea level, in Greece. The nearest listed city is Ayvalık, 26 km away.

AliağaFoçaBergamaBurhaniyeEdremitMenemenEzine

Topography around Mytilene

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

Within 3 km, the terrain around Mytilene has significant variations in elevation — a maximum elevation change of 375 m around an average of 54 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 869 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,761 m.

The land around Mytilene is covered by water (45%) and trees (25%) within 3 km, water (60%) and trees (29%) within 16 km, and water (48%) and trees (28%) within 80 km.

3 km
375 m
16 km
869 m
80 km
1,761 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Ayvalık 26 km · Aliağa 50 km · Foça 52 km · Bergama 54 km · Burhaniye 57 km · Edremit 68 km · Menemen 71 km · Ezine 78 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 Mytilene (39.1077°, 26.5553°, elevation 14 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).