Petrich weather in December

In December, Petrich sees average daytime highs of 7°C and overnight lows near -1°C, with 78 mm of precipitation across 9.5 wet days and about 9.1 hours of daylight. It is the 11th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 8°C in the first days to 6°C by the end. The sky is clear or mostly clear about 37% 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 Petrich's 9th-clearest and 7th-windiest month. For the whole year in context, see Petrich's year-round climate.

Daytime high
11th warmest
Overnight low
-1°
3rd coldest
Precipitation
78 mm
9.5 wet days
Daylight
9 hours
7:53 AM – 4:54 PM
Cloud cover
56%
9th clearest
Wind
5 km/h
7th windiest
Solar energy
1.67 kWh/m²
Travel score
0.8
out of 10

Petrich is city in Petrich municipality, Blagoevgrad oblast, Bulgaria.

Density
382/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 8°C in the first days to 6°C by the end.

A typical December day in Petrich reaches about 7°C in the afternoon and slips back to -1°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 2°C and 11°C. Set against its neighbours, December runs about 5°C cooler than November and about 1°C warmer than January.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
191
291
381
481
581
681
780
870
970
1070
1170
1270
137-1
147-1
156-1
166-1
176-1
186-1
196-1
206-1
216-1
226-2
236-2
246-2
256-2
266-2
276-2
286-2
296-2
306-2
316-2

How December really feels in Petrich

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 23 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
23
wind chill below the day's low

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

Petrich weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°588.14.29.40.4
Feb / -1°599.24.210.31.3
Mar12° / 7410.82.911.73.1
Apr16° / 6911.90.513.14.9
May21° / 10°7812.50.114.36.2
Jun26° / 14°5310.6014.96.9
Jul28° / 16°407.8014.76.8
Aug28° / 16°336.8013.76.8
Sep24° / 13°407012.37.7
Oct18° / 637.40.210.96.3
Nov12° / 6881.19.73.3
Dec / -1°789.53.19.10.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24654
34753
44753
54753
64852
74852
84951
94951
104951
114951
124951
134951
144951
154951
164951
174852
184852
194852
204951
214951
224852
234852
244852
255050
265050
275050
285149
295149
305248
315248

Chance of precipitation in December

Any precipitationSnow

Petrich gets around 78 mm of rain and snow over 9.5 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 precipitation averages around 30% and peaks near 33% on the wettest days, and about 3 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1336
2336
3326
4326
5326
6317
7317
8317
9308
10308
11309
122910
132910
142910
152911
162911
172912
182912
192912
203012
213013
223013
233013
242913
252913
262912
272812
282812
292712
302712
312612

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 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 7:40 AM to 7:59 AM, and sunset from 4:54 PM to 5:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.27:404:54
29.27:414:54
39.27:424:53
49.27:434:53
59.27:444:53
69.17:454:53
79.17:464:53
89.17:474:53
99.17:474:53
109.17:484:53
119.17:494:53
129.17:504:53
139.07:514:53
149.07:514:54
159.07:524:54
169.07:534:54
179.07:534:54
189.07:544:55
199.07:544:55
209.07:554:55
219.07:564:56
229.07:564:56
239.07:564:57
249.07:574:57
259.07:574:58
269.07:584:58
279.07:584:59
289.07:585:00
299.07:595:00
309.07:595:01
319.07:595:02

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.67 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.67 kWh/m² to a high of 6.59 kWh/m² in June across the year — December's 1.67 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.7Dim
21.7Dim
31.7Dim
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
281.8Dim
291.8Dim
301.8Dim
311.8Dim
Planning a trip in December

Is December a good time to visit Petrich?

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

0.8
Sightseeing
11th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Petrich.

What to pack for Petrich in December

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

In December, Petrich sees daytime highs around 7°C and nights near -1°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

UV index in Petrich 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 Petrich peaks around June 22 at about 9 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 22UV 9Dec 21UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr8Very high
May6High
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec1Low

Air quality in Petrich 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 Petrich is worst in March — around 15 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (December, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 2215 µg/m³Dec 1410 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar15Moderate
Apr15Moderate
May14Moderate
Jun14Moderate
Jul12Moderate
Aug13Moderate
Sep11Good
Oct10Good
Nov11Good
Dec9Good
Location & terrain

Where is Petrich?

Petrich sits at 41.4°N, 23.2°E, 185 m above sea level, in Bulgaria. The nearest listed city is Sandanski, 20 km away.

SérresStrumicaGotse DelchevKilkísBanskoGevgelijaRadovis

Topography around Petrich

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

Within 3 km, the terrain around Petrich has large variations in elevation — a maximum elevation change of 684 m around an average of 234 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,986 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,873 m.

The land around Petrich is covered by trees (40%) and cropland (31%) within 3 km, trees (58%) and grassland (25%) within 16 km, and trees (57%) and cropland (20%) within 80 km.

3 km
684 m
16 km
1,986 m
80 km
2,873 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Sandanski 20 km · Sérres 45 km · Strumica 47 km · Gotse Delchev 48 km · Kilkís 53 km · Bansko 54 km · Gevgelija 65 km · Radovis 67 km

Bulgaria travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 23% of US
price level, 2025
GDP per capita
$20,328
2025
Happiness
5.7 / 10
World Happiness, 2025
Safe drinking water
96%
of population, 2024
Homicide rate
1.1
per 100k, 2023
Road deaths
9.2
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 594
Religion
Christian 65%Muslim 10%none 5%other 0%

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 Petrich (41.3985°, 23.207°, elevation 185 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. 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).