Tortona weather in December

In December, Tortona sees average daytime highs of 8°C and overnight lows near 2°C, with 67 mm of precipitation across 8 wet days and about 8.7 hours of daylight. It is the 11th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 9°C in the first days to 7°C by the end. The sky is clear or mostly clear about 34% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 48 min at the start of December to 8 h 36 min by month's end. Set against the rest of the year, December is Tortona's 10th-clearest and 11th-windiest month. For the whole year in context, see Tortona's year-round climate.

Daytime high
11th warmest
Overnight low
2nd coldest
Precipitation
67 mm
8 wet days
Daylight
8 h 36 min
8:02 AM – 4:39 PM
Cloud cover
60%
10th clearest
Wind
5 km/h
11th windiest
Solar energy
1.21 kWh/m²
Travel score
1.4
out of 10

Tortona 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 9°C in the first days to 7°C by the end.

A typical December day in Tortona reaches about 8°C in the afternoon and slips back to 2°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 4°C and 12°C. Set against its neighbours, December runs about 4°C cooler than November and on par with January.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
193
293
393
493
593
692
792
892
982
1082
1182
1282
1382
1482
1581
1681
1781
1881
1981
2081
2171
2271
2371
2471
2571
2671
2771
2871
2971
3071
3171

How December really feels in Tortona

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 17 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
17
wind chill below the day's low

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Tortona weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 567.12.791.3
Feb10° / 536.31.610.12.6
Mar15° / 587.20.611.65.0
Apr19° / 7190.113.26.2
May23° / 14°668.6014.67.0
Jun28° / 18°476.8015.36.5
Jul31° / 20°345015.15.2
Aug30° / 20°436.4013.95.4
Sep25° / 16°737.4012.37.2
Oct19° / 11°929.3010.76.0
Nov12° / 11310.10.49.43.3
Dec / 6782.48.71.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 55%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
24060
34159
44159
54258
64357
74357
84456
94456
104456
114555
124654
134654
144654
154654
164654
174654
184555
194555
204555
214555
224555
234555
244654
254654
264654
274654
284753
294753
304753
314753

Chance of precipitation in December

Any precipitationSnow

Tortona gets around 67 mm of rain and snow over 8 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 26% and peaks near 29% on the wettest days, and about 2 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1295
2296
3286
4286
5276
6277
7267
8257
9257
10258
11248
12248
13248
14248
15259
16259
17259
18259
19268
20268
21268
22268
23268
24268
25268
26268
27258
28258
29258
30259
31259

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 (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 5 km/h in December.

Across December, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 48 min at the start of December to 8 h 36 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 7:49 AM to 8:09 AM, and sunset from 4:40 PM to 4:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.87:494:40
28.87:504:39
38.87:514:39
48.87:524:39
58.87:534:39
68.77:544:38
78.77:554:38
88.77:564:38
98.77:574:38
108.77:584:38
118.77:594:38
128.67:594:38
138.68:004:38
148.68:014:39
158.68:024:39
168.68:024:39
178.68:034:39
188.68:044:40
198.68:044:40
208.68:054:40
218.68:054:41
228.68:064:41
238.68:064:42
248.68:074:42
258.68:074:43
268.68:074:43
278.68:084:44
288.68:084:45
298.68:084:45
308.68:084:46
318.68:094:47

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.21 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.21 kWh/m² to a high of 6.47 kWh/m² in July across the year — December's 1.21 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.3Dim
21.3Dim
31.3Dim
41.3Dim
51.3Dim
61.3Dim
71.3Dim
81.2Dim
91.2Dim
101.2Dim
111.2Dim
121.2Dim
131.2Dim
141.2Dim
151.2Dim
161.2Dim
171.2Dim
181.2Dim
191.2Dim
201.2Dim
211.2Dim
221.2Dim
231.2Dim
241.2Dim
251.2Dim
261.2Dim
271.2Dim
281.2Dim
291.2Dim
301.2Dim
311.3Dim
Planning a trip in December

Is December a good time to visit Tortona?

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

1.4
Sightseeing
11th-best month of the year
0.0
Beach & pool
11th-best month of the year

December is a weaker month for outdoor sightseeing in Tortona.

What to pack for Tortona in December

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

In December, Tortona sees daytime highs around 8°C and nights near 2°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 8 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Tortona 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 58 km away) is warmest in August at about 25°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 3 to Oct 19 — about 4.6 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr15Bracing
May18Cool
Jun22Refreshing
Jul24Warm
Aug25Warm
Sep23Refreshing
Oct20Refreshing
Nov18Cool
Dec16Cool

UV index in Tortona 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 Tortona peaks around July 14 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 14UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr7High
May6High
Jun8Very high
Jul9Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Tortona 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 Tortona is worst in January — around 26 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJan 1726 µg/m³Aug 1617 µg/m³
PM2.5 (µg/m³)Level
Jan26Moderate
Feb23Moderate
Mar26Moderate
Apr23Moderate
May20Moderate
Jun21Moderate
Jul18Moderate
Aug17Moderate
Sep18Moderate
Oct20Moderate
Nov20Moderate
Dec22Moderate
Location & terrain

Where is Tortona?

Tortona sits at 44.9°N, 8.9°E, 122 m above sea level, in Italy. The nearest listed city is Voghera, 16 km away.

Topography around Tortona

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

Within 3 km, the terrain around Tortona has only modest variations in elevation — a maximum elevation change of 162 m around an average of 130 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 597 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,776 m.

The land around Tortona is covered by cropland (42%) and artificial surfaces (22%) within 3 km, cropland (59%) within 16 km, and trees (41%) and cropland (34%) within 80 km.

3 km
162 m
16 km
597 m
80 km
1,776 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Voghera 16 km · Novi Ligure 16 km · Alessandria 20 km · Valenza 21 km · Acqui Terme 40 km · Pavia 40 km · Casale Monferrato 42 km · Vigevano 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 Tortona (44.8978°, 8.8637°, elevation 122 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).