Lido di Ostia weather in December

In December, Lido di Ostia sees average daytime highs of 13°C and overnight lows near 10°C, with 115 mm of rain across 11.7 wet days and about 9 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 14°C in the first days to 13°C by the end. The sky is clear or mostly clear about 42% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 12 min at the start of December to 9 hours by month's end. Set against the rest of the year, December is Lido di Ostia's 11th-clearest and 1st-windiest month. For the whole year in context, see Lido di Ostia's year-round climate.

Daytime high
13°
10th warmest
Overnight low
10°
4th coldest
Rainfall
115 mm
11.7 wet days
Daylight
9 hours
7:37 AM – 4:37 PM
Cloud cover
50%
11th clearest
Wind
18 km/h
1st windiest
Solar energy
1.68 kWh/m²
Travel score
3.8
out of 10

Lido di Ostia is human settlement in Rome, Lazio, Italy.

Density
5,553/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 13°C by the end.

A typical December day in Lido di Ostia 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 11°C and 16°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)
11511
21511
31511
41411
51411
61411
71411
81411
91411
101411
111410
121410
131410
141410
151310
161310
171310
181310
191310
201310
211310
221310
231310
241310
251310
26139
27139
28139
29139
30139
31139

Lido di Ostia weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 8110.69.33.4
Feb12° / 789.610.33.4
Mar14° / 10°728.611.74.3
Apr16° / 12°61813.15.3
May19° / 16°40614.37.1
Jun23° / 20°223.3158.5
Jul25° / 23°151.814.79.0
Aug26° / 23°212.613.78.6
Sep23° / 20°867.912.37.6
Oct20° / 17°13210.410.96.6
Nov17° / 13°16113.39.65.0
Dec13° / 10°11511.793.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 45%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25644
35644
45644
55644
65644
75644
85644
95545
105545
115644
125644
135644
145644
155644
165545
175545
185446
195446
205446
215446
225446
235446
245545
255545
265545
275644
285644
295644
305644
315743

Chance of precipitation in December

Any precipitation

Lido di Ostia gets around 115 mm of rain over 11.7 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 38% and peaks near 42% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
142
242
341
441
541
641
740
840
940
1039
1139
1238
1338
1437
1537
1636
1736
1836
1936
2036
2136
2236
2336
2436
2536
2636
2736
2836
2935
3035
3135

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 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
18911
29010
3919
4928
5928
6937
7946
8955
9955
10964
11964
12973
13973
14973
15982
16982
17982
18982
19982
20982
21982
22982
23982
24982
25982
26982
27982
28982
29982
30982
31982

Wind in December

Winds average 18 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
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 12 min at the start of December to 9 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:25 AM to 7:44 AM, and sunset from 4:36 PM to 4:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.27:254:36
29.27:264:36
39.27:274:36
49.17:284:36
59.17:294:36
69.17:304:36
79.17:314:36
89.17:314:36
99.17:324:36
109.07:334:36
119.07:344:36
129.07:354:36
139.07:354:36
149.07:364:36
159.07:374:36
169.07:374:37
179.07:384:37
189.07:394:37
199.07:394:38
209.07:404:38
219.07:404:38
229.07:414:39
239.07:414:39
249.07:424:40
259.07:424:40
269.07:424:41
279.07:434:42
289.07:434:42
299.07:434:43
309.07:444:44
319.07:444:44

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.68 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.68 kWh/m² to a high of 7.16 kWh/m² in July across the year — December's 1.68 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.8Dim
21.8Dim
31.8Dim
41.7Dim
51.7Dim
61.7Dim
71.7Dim
81.7Dim
91.7Dim
101.7Dim
111.7Dim
121.7Dim
131.7Dim
141.7Dim
151.7Dim
161.7Dim
171.7Dim
181.7Dim
191.7Dim
201.7Dim
211.7Dim
221.7Dim
231.7Dim
241.7Dim
251.7Dim
261.7Dim
271.7Dim
281.7Dim
291.7Dim
301.7Dim
311.7Dim
Planning a trip in December

Hazard calendar for Lido di Ostia

In seasonPeak

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

Lido di Ostia's rainy season runs September–February, 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 Lido di Ostia?

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

3.8
Sightseeing
10th-best month of the year
0.0
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Lido di Ostia.

What to pack for Lido di Ostia in December

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

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

a warm layerrain gear

Sea temperature near Lido di Ostia in December

The nearest coast averages about 16°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 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 31 to Nov 1 — about 5.1 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep24Refreshing
Oct21Refreshing
Nov19Cool
Dec16Cool

UV index in Lido di Ostia in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lido di Ostia peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateVery highHighModerateLowJul 15UV 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5Moderate
Apr4Moderate
May7High
Jun9Very high
Jul10Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Lido di Ostia?

Lido di Ostia sits at 41.7°N, 12.3°E, 1 m above sea level, in Italy. The nearest listed city is Fiumicino, 5.0 km away.

Topography around Lido di Ostia

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

Within 3 km, the terrain around Lido di Ostia has only modest variations in elevation — a maximum elevation change of 24 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 126 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,788 m.

The land around Lido di Ostia is covered by water (45%), grassland (20%) and artificial surfaces (20%) within 3 km, water (56%) within 16 km, and trees (37%) and water (35%) within 80 km.

3 km
24 m
16 km
126 m
80 km
1,788 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Fiumicino 5.0 km · Acilia-Castel Fusano-Ostia Antica 6.0 km · Casal Palocco 6.0 km · Infernetto 7.0 km · Malafede 10 km · Spinaceto 15 km · Torvaianica 20 km · Pomezia 20 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 Lido di Ostia (41.7321°, 12.2765°, elevation 1 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).