Fondi weather in December

In December, Fondi sees average daytime highs of 13°C and overnight lows near 9°C, with 146 mm of rain across 12.2 wet days and about 9.1 hours of daylight. It is the 10th-warmest and 2nd-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 40% 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 h 06 min by month's end. Set against the rest of the year, December is Fondi's 9th-clearest and 1st-windiest month. For the whole year in context, see Fondi's year-round climate.

Daytime high
13°
10th warmest
Overnight low
4th coldest
Rainfall
146 mm
12.2 wet days
Daylight
9 hours
7:32 AM – 4:33 PM
Cloud cover
52%
9th clearest
Wind
12 km/h
1st windiest
Solar energy
1.71 kWh/m²
Travel score
3.5
out of 10

Fondi is chief town of the homonym municipality.

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 Fondi reaches about 13°C in the afternoon and slips back to 9°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 15°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)
11410
21410
31410
41410
51410
61410
71410
8139
9139
10139
11139
12139
13139
14139
15139
16139
17139
18139
19139
20138
21128
22128
23128
24128
25128
26128
27128
28128
29128
30128
31128

Fondi weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 10210.29.43.1
Feb12° / 999.810.33.2
Mar14° / 939.511.74.1
Apr16° / 11°8210.413.15.1
May20° / 15°537.214.37.0
Jun24° / 19°264.214.98.3
Jul26° / 22°142.814.78.5
Aug27° / 22°192.613.78.3
Sep24° / 19°968.312.37.5
Oct20° / 16°14610.410.96.5
Nov16° / 12°20213.89.74.7
Dec13° / 14612.29.13.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% 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 46%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35149
45248
55347
65347
75347
85347
95446
105446
115446
125347
135446
145446
155446
165446
175347
185446
195446
205446
215446
225446
235545
245545
255545
265545
275545
285545
295545
305545
315545

Chance of precipitation in December

Any precipitation

Fondi gets around 146 mm of rain over 12.2 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 39% and peaks near 44% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
144
243
343
443
543
642
742
842
942
1041
1141
1241
1340
1440
1539
1639
1739
1839
1938
2038
2138
2237
2337
2437
2536
2636
2736
2836
2935
3035
3134

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1955
2964
3964
4973
5973
6973
7982
8982
9982
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20982
21982
22982
23982
24982
25982
26982
27991
28991
29991
30991
31991

Wind in December

Winds average 12 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 12 min at the start of December to 9 h 06 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 7:19 AM to 7:38 AM, and sunset from 4:33 PM to 4:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.27:194:33
29.27:204:33
39.27:214:33
49.27:224:32
59.27:234:32
69.17:244:32
79.17:254:32
89.17:264:32
99.17:264:32
109.17:274:32
119.17:284:32
129.17:294:32
139.17:304:33
149.07:304:33
159.07:314:33
169.07:324:33
179.07:324:34
189.07:334:34
199.07:334:34
209.07:344:35
219.07:354:35
229.07:354:36
239.07:354:36
249.07:364:37
259.07:364:37
269.07:374:38
279.07:374:38
289.07:374:39
299.07:384:40
309.07:384:40
319.17:384:41

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.71 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.71 kWh/m² to a high of 7.08 kWh/m² in July across the year — December's 1.71 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.8Dim
21.8Dim
31.8Dim
41.8Dim
51.8Dim
61.8Dim
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
311.8Dim
Planning a trip in December

Hazard calendar for Fondi

In seasonPeak

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

Fondi's rainy season runs September–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 Fondi?

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

3.5
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 Fondi.

What to pack for Fondi in December

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

In December, Fondi sees daytime highs around 13°C and nights near 9°C. Worth packing: a warm layer and rain gear. About 12 days see rain.

a warm layerrain gear

Sea temperature near Fondi 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 at the nearest coast (about 26 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 29 to Nov 4 — about 5.3 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr16Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep24Warm
Oct22Refreshing
Nov19Cool
Dec17Cool

UV index in Fondi 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 Fondi peaks around July 16 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 16UV 10Dec 21UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr4Moderate
May7High
Jun9Very high
Jul10Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Fondi?

Fondi sits at 41.4°N, 13.4°E, 8 m above sea level, in Italy. The nearest listed city is Terracina, 17 km away.

Topography around Fondi

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

Within 3 km, the terrain around Fondi has significant variations in elevation — a maximum elevation change of 512 m around an average of 74 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,305 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,266 m.

The land around Fondi is covered by trees (39%) and artificial surfaces (20%) within 3 km, trees (54%) within 16 km, and water (39%) and trees (37%) within 80 km.

3 km
512 m
16 km
1,305 m
80 km
2,266 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Terracina 17 km · Formia 19 km · Gaeta 20 km · Minturno 29 km · Frosinone 32 km · Sabaudia 34 km · Sezze 34 km · Cassino 36 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 Fondi (41.3579°, 13.4272°, elevation 8 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).