Osimo weather in December

In December, Osimo sees average daytime highs of 11°C and overnight lows near 6°C, with 67 mm of precipitation across 10.1 wet days and about 8.8 hours of daylight. It is the 10th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 13°C in the first days to 11°C by the end. The sky is clear or mostly clear about 32% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 hours at the start of December to 8 h 48 min by month's end. Set against the rest of the year, December is Osimo's 10th-clearest and 2nd-windiest month. For the whole year in context, see Osimo's year-round climate.

Daytime high
11°
10th warmest
Overnight low
3rd coldest
Precipitation
67 mm
10.1 wet days
Daylight
8 h 48 min
7:39 AM – 4:26 PM
Cloud cover
58%
10th clearest
Wind
12 km/h
2nd windiest
Solar energy
1.46 kWh/m²
Travel score
2.9
out of 10

Osimo is chief town of the homonym municipality.

Air quality
Good
PM10 27.6 µg/m³ · 2010

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 13°C in the first days to 11°C by the end.

A typical December day in Osimo reaches about 11°C in the afternoon and slips back to 6°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 15°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)
1138
2138
3138
4128
5127
6127
7127
8127
9127
10127
11127
12126
13126
14116
15116
16116
17116
18116
19116
20116
21116
22116
23116
24115
25115
26115
27115
28115
29115
30115
31115

Osimo 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 daysSnow daysDaylight (hours)Travel score
Jan10° / 508.80.59.12.5
Feb11° / 538.70.610.22.8
Mar14° / 638.40.211.64.3
Apr17° / 10°629.5013.25.6
May22° / 15°578.3014.57.1
Jun27° / 19°386.2015.27.5
Jul29° / 21°284.5014.96.7
Aug29° / 21°415.8013.86.6
Sep25° / 18°607.8012.37.4
Oct20° / 14°598.1010.86.7
Nov15° / 10°7110.50.19.54.6
Dec11° / 6710.10.28.82.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% 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 53%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24456
34456
44555
54555
64654
74753
84852
94852
104753
114852
124951
134852
144951
154951
164852
174852
184753
194753
204753
214753
224753
234753
244753
254753
264753
274753
284753
294753
304654
314753

Chance of precipitation in December

Any precipitationSnow

Osimo gets around 67 mm of rain and snow over 10.1 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 33% and peaks near 37% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1370
2360
3360
4360
5360
6360
7350
8350
9350
10341
11341
12341
13331
14331
15321
16321
17311
18311
19311
20311
21301
22301
23301
24301
25301
26311
27311
28311
29311
30312
31312

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1991
2991
3991
4991
5991
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in December

Winds average 12 km/h in December.

Across December, daily wind ranges from about 11 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
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
912calm
1012calm
1112calm
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 hours at the start of December to 8 h 48 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 7:26 AM to 7:45 AM, and sunset from 4:26 PM to 4:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.07:264:26
29.07:274:26
39.07:284:26
48.97:294:25
58.97:304:25
68.97:314:25
78.97:324:25
88.97:324:25
98.97:334:25
108.87:344:25
118.87:354:25
128.87:364:25
138.87:374:25
148.87:374:25
158.87:384:25
168.87:394:26
178.87:394:26
188.87:404:26
198.87:414:27
208.87:414:27
218.87:424:27
228.87:424:28
238.87:434:28
248.87:434:29
258.87:434:29
268.87:444:30
278.87:444:31
288.87:444:31
298.87:454:32
308.87:454:33
318.87:454:33

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.46 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.46 kWh/m² to a high of 6.95 kWh/m² in July across the year — December's 1.46 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.5Dim
21.5Dim
31.5Dim
41.5Dim
51.5Dim
61.5Dim
71.5Dim
81.5Dim
91.5Dim
101.5Dim
111.5Dim
121.4Dim
131.4Dim
141.4Dim
151.4Dim
161.4Dim
171.4Dim
181.4Dim
191.4Dim
201.4Dim
211.4Dim
221.4Dim
231.4Dim
241.4Dim
251.5Dim
261.5Dim
271.5Dim
281.5Dim
291.5Dim
301.5Dim
311.5Dim
Planning a trip in December

Is December a good time to visit Osimo?

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

2.9
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 Osimo.

What to pack for Osimo in December

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

In December, Osimo sees daytime highs around 11°C and nights near 6°C. Pack a warm layer. Worth having: rain gear. About 10 days see rain.

a warm layerrain gear

Sea temperature near Osimo in December

The nearest coast averages about 14°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 18 km away) is warmest in August at about 26°C and coldest in March near 11°C.

It's comfortable for a long swim from Jun 2 to Oct 10 — about 4.3 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb11Bracing
Mar11Bracing
Apr13Bracing
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep23Refreshing
Oct19Cool
Nov16Cool
Dec14Bracing

UV index in Osimo 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 Osimo peaks around July 16 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 16UV 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5Moderate
Apr6High
May7High
Jun8Very high
Jul9Very high
Aug8Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Osimo 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 Osimo is worst in March — around 17 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (September, 11 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodGoodMar 1917 µg/m³Sep 1411 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb16Moderate
Mar17Moderate
Apr17Moderate
May14Moderate
Jun14Moderate
Jul12Good
Aug12Good
Sep11Good
Oct13Moderate
Nov11Good
Dec11Good
Location & terrain

Where is Osimo?

Osimo sits at 43.5°N, 13.5°E, 265 m above sea level, in Italy. The nearest listed city is Ancona, 14 km away.

Topography around Osimo

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

Within 3 km, the terrain around Osimo has significant variations in elevation — a maximum elevation change of 271 m around an average of 103 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 571 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,455 m.

The land around Osimo is covered by cropland (53%) within 3 km, cropland (54%) within 16 km, and water (32%), trees (30%) and cropland (22%) within 80 km.

3 km
271 m
16 km
571 m
80 km
2,455 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Ancona 14 km · Falconara Marittima 17 km · Jesi 20 km · Macerata 21 km · Civitanova Marche 28 km · Senigallia 34 km · Porto Sant'Elpidio 34 km · Tolentino 35 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 Osimo (43.4854°, 13.4822°, elevation 265 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).