Siracusa weather in December

In December, Siracusa sees average daytime highs of 15°C and overnight lows near 12°C, with 80 mm of rain across 9.1 wet days and about 9.5 hours of daylight. It is the 9th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 16°C in the first days to 14°C by the end. The sky is clear or mostly clear about 50% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 36 min at the start of December to 9 h 30 min by month's end. Set against the rest of the year, December is Siracusa's 11th-clearest and 1st-windiest month. For the whole year in context, see Siracusa's year-round climate.

Daytime high
15°
9th warmest
Overnight low
12°
4th coldest
Rainfall
80 mm
9.1 wet days
Daylight
9 h 30 min
7:11 AM – 4:39 PM
Cloud cover
46%
11th clearest
Wind
17 km/h
1st windiest
Solar energy
2.19 kWh/m²
Travel score
5.1
out of 10

Siracusa is comune in the Province of Syracuse, Italy.

Air quality
Good
PM10 22.8 µg/m³ · 2019

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 16°C in the first days to 14°C by the end.

A typical December day in Siracusa reaches about 15°C in the afternoon and slips back to 12°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 18°C. Set against its neighbours, December runs about 3°C cooler than November and about 1°C warmer than January.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
11714
21714
31614
41613
51613
61613
71613
81613
91613
101613
111613
121613
131613
141513
151512
161512
171512
181512
191512
201512
211512
221512
231512
241512
251512
261512
271512
281512
291411
301411
311411

Siracusa weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan14° / 11°738.39.74.3
Feb14° / 11°597.410.64.4
Mar15° / 12°486.511.75.1
Apr17° / 14°275.212.96.2
May20° / 17°143.1147.8
Jun24° / 21°101.414.59.0
Jul27° / 24°40.914.39.0
Aug27° / 25°101.813.48.6
Sep25° / 22°496.212.37.9
Oct22° / 19°688.4117.2
Nov19° / 16°738.2106.4
Dec15° / 12°809.19.55.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 35%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26436
36436
46436
56436
66436
76436
86436
96436
106535
116535
126535
136535
146535
156535
166535
176535
186535
196436
206436
216436
226436
236436
246535
256535
266634
276634
286634
296733
306832
316931

Chance of precipitation in December

Any precipitation

Siracusa gets around 80 mm of rain over 9.1 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 rain averages around 28% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
129
229
330
430
530
630
730
830
930
1030
1130
1229
1329
1429
1529
1628
1728
1827
1927
2027
2127
2227
2327
2427
2527
2627
2726
2826
2925
3025
3124

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 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
177203
279192
381172
482162
584142
686131
787121
888111
989101
109091
119181
129280
139280
149370
159370
169370
179370
189370
199370
209370
219370
229460
239460
249460
259550
269550
279550
289640
299640
309640
319730

Wind in December

Winds average 17 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 17 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3117light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 36 min at the start of December to 9 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:59 AM to 7:17 AM, and sunset from 4:38 PM to 4:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.66:594:38
29.67:004:38
39.67:014:38
49.67:024:37
59.67:034:37
69.67:044:37
79.57:054:37
89.57:054:37
99.57:064:38
109.57:074:38
119.57:084:38
129.57:084:38
139.57:094:38
149.57:104:38
159.57:104:39
169.57:114:39
179.57:124:39
189.57:124:40
199.57:134:40
209.57:134:40
219.57:144:41
229.57:144:41
239.57:154:42
249.57:154:42
259.57:164:43
269.57:164:43
279.57:164:44
289.57:174:45
299.57:174:45
309.57:174:46
319.57:174:47

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.19 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.19 kWh/m² to a high of 7.43 kWh/m² in June across the year — December's 2.19 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.3Moderate
22.3Moderate
32.3Moderate
42.2Moderate
52.2Moderate
62.2Moderate
72.2Moderate
82.2Moderate
92.2Moderate
102.2Moderate
112.2Moderate
122.2Moderate
132.2Moderate
142.2Moderate
152.2Moderate
162.2Moderate
172.2Moderate
182.2Moderate
192.2Moderate
202.2Moderate
212.2Moderate
222.2Moderate
232.2Moderate
242.2Moderate
252.2Moderate
262.2Moderate
272.2Moderate
282.3Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in December

Is December a good time to visit Siracusa?

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

5.1
Sightseeing
9th-best month of the year
0.4
Beach & pool
9th-best month of the year

December is a reasonable time to visit Siracusa for sightseeing.

What to pack for Siracusa in December

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

In December, Siracusa sees daytime highs around 15°C and nights near 12°C. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

Sea temperature near Siracusa 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 26°C and coldest in February near 15°C.

It's comfortable for a long swim from May 31 to Nov 12 — about 5.5 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb15Bracing
Mar15Bracing
Apr16Cool
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Cool
Dec17Cool

UV index in Siracusa 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 Siracusa peaks around July 15 at about 10 (extreme) — 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 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighHighVery highVery highHighModerateJul 15UV 10Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb4Moderate
Mar6High
Apr5Moderate
May5High
Jun9Very high
Jul10Extreme
Aug9Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Siracusa 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 Siracusa is worst in March — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodGoodMar 2216 µg/m³Dec 1011 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb15Moderate
Mar16Moderate
Apr16Moderate
May15Moderate
Jun14Moderate
Jul12Good
Aug13Moderate
Sep11Good
Oct12Moderate
Nov11Good
Dec11Good
Location & terrain

Where is Siracusa?

Siracusa sits at 37.1°N, 15.3°E, 17 m above sea level, in Italy. The nearest listed city is Floridia, 12 km away.

Topography around Siracusa

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

Within 3 km, the terrain around Siracusa has only modest variations in elevation — a maximum elevation change of 83 m around an average of 21 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 468 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,290 m.

The land around Siracusa is covered by water (43%) and artificial surfaces (33%) within 3 km, water (63%) within 16 km, and water (49%) within 80 km.

3 km
83 m
16 km
468 m
80 km
3,290 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Floridia 12 km · Augusta 19 km · Avola 23 km · Noto 28 km · Lentini 35 km · Rosolini 41 km · Pachino 44 km · Scordia 46 km

Italy travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / L
230 V · 50 Hz
Prices
≈ 69% of US
price level, 2025
GDP per capita
$43,309
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
0.6
per 100k, 2023
Road deaths
5.3
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 513
Religion
Christian 81%unaffiliated 13%Muslim 5%other 1%

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 Siracusa (37.0754°, 15.2866°, elevation 17 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).