Fastiv weather in December

In December, Fastiv sees average daytime highs of 0°C and overnight lows near -4°C, with 41 mm of precipitation across 8.5 wet days and about 7.9 hours of daylight. It is the 11th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 1°C in the first days to -1°C by the end. The sky is clear or mostly clear about 8% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 12 min at the start of December to 7 h 54 min by month's end. Set against the rest of the year, December is Fastiv's 12th-clearest and 4th-windiest month. For the whole year in context, see Fastiv's year-round climate.

Daytime high
11th warmest
Overnight low
-4°
3rd coldest
Precipitation
41 mm
8.5 wet days
Daylight
7 h 54 min
8:00 AM – 3:52 PM
Cloud cover
85%
12th clearest
Wind
13 km/h
4th windiest
Solar energy
0.65 kWh/m²
Travel score
0.0
out of 10

Fastiv is town and administrative center of Fastiv District of Kyiv Oblast in central Ukraine.

Density
1,024/km²
people per km²
Founded
1390

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 1°C in the first days to -1°C by the end.

A typical December day in Fastiv reaches about 0°C in the afternoon and slips back to -4°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between -7°C and 6°C. Set against its neighbours, December runs about 5°C cooler than November and about 1°C warmer than January.

-15°-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
12-3
21-3
31-3
41-3
51-3
61-3
71-3
81-3
91-3
100-4
110-4
120-4
130-4
140-4
150-4
160-4
170-4
180-4
190-4
200-5
210-5
220-5
230-5
240-5
25-1-5
26-1-5
27-1-5
28-1-5
29-1-5
30-1-5
31-1-5

How December really feels in Fastiv

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 31 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
31
5 feel bitter (≤ -10°C)

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

Fastiv weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-1° / -6°327.96.78.30.0
Feb / -5°338.16.59.70.0
Mar / -1°399.54.611.50.6
Apr14° / 449.50.713.54.1
May20° / 10°6111015.26.2
Jun24° / 14°7211.6016.16.6
Jul25° / 15°8011.7015.76.6
Aug25° / 14°548.4014.37.2
Sep19° / 10°609012.46.2
Oct12° / 437.70.310.53.4
Nov / 417.93.48.80.4
Dec / -4°418.56.27.90.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 6% of December, with mostly cloudy or overcast conditions the remaining 86%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11288
21288
31288
41288
51288
61288
71387
81387
91387
101387
111486
121486
131486
141486
151486
161486
171585
181585
191585
201585
211585
221585
231585
241486
251387
261387
271387
281486
291486
301486
311387

Chance of precipitation in December

Any precipitationSnow

Fastiv gets around 41 mm of rain and snow over 8.5 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 28% and peaks near 29% on the wettest days, and about 6 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
12618
22618
32618
42618
52618
62618
72719
82719
92719
102719
112719
122719
132819
142820
152820
162820
172821
182921
192921
202921
212921
222921
232921
242921
252922
262922
272922
282921
292921
302921
312821

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 13 km/h in December.

Across December, daily wind ranges from about 13 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 12 min at the start of December to 7 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over December. Sunrise moves from 7:45 AM to 8:06 AM, and sunset from 3:55 PM to 4:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.27:453:55
28.17:463:55
38.17:483:54
48.17:493:54
58.17:503:53
68.07:513:53
78.07:523:53
88.07:533:53
98.07:543:52
107.97:553:52
117.97:563:52
127.97:573:52
137.97:583:52
147.97:593:52
157.98:003:52
167.98:003:52
177.98:013:53
187.98:023:53
197.88:033:53
207.88:033:54
217.88:043:54
227.88:043:54
237.88:053:55
247.88:053:55
257.88:053:56
267.98:063:57
277.98:063:57
287.98:063:58
297.98:063:59
307.98:064:00
317.98:064:01

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.65 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.65 kWh/m² to a high of 5.82 kWh/m² in June across the year — December's 0.65 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.7Dim
20.7Dim
30.7Dim
40.7Dim
50.7Dim
60.7Dim
70.7Dim
80.7Dim
90.7Dim
100.6Dim
110.6Dim
120.6Dim
130.6Dim
140.6Dim
150.6Dim
160.6Dim
170.6Dim
180.6Dim
190.6Dim
200.6Dim
210.6Dim
220.7Dim
230.7Dim
240.7Dim
250.7Dim
260.7Dim
270.7Dim
280.7Dim
290.7Dim
300.7Dim
310.7Dim
Planning a trip in December

Is December a good time to visit Fastiv?

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

0.0
Sightseeing
10th-best month of the year
0.0
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in Fastiv.

What to pack for Fastiv in December

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

In December, Fastiv sees daytime highs around 0°C and nights near -4°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 9 days see rain.

a warm layera heavy coatrain gear

UV index in Fastiv 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 Fastiv peaks around July 11 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. 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 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 11UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5Moderate
Jun7High
Jul7Very high
Aug6High
Sep5Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Fastiv?

Fastiv sits at 50.1°N, 29.9°E, 217 m above sea level, in Ukraine. The nearest listed city is Vasylkiv, 30 km away.

Topography around Fastiv

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

Within 3 km, the terrain around Fastiv has only modest variations in elevation — a maximum elevation change of 83 m around an average of 191 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 150 m; within 80 km, only modest variations in elevation — a maximum elevation change of 224 m.

The land around Fastiv is covered by trees (44%), cropland (22%) and artificial surfaces (21%) within 3 km, cropland (55%) and trees (32%) within 16 km, and cropland (55%) and trees (29%) within 80 km.

3 km
83 m
16 km
150 m
80 km
224 m
treesgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Vasylkiv 30 km · Bila Tserkva 34 km · Boyarka 38 km · Bilohorodka 41 km · Skvyra 42 km · Svyatopetrivske 44 km · Vyshneve 47 km · Sofiivska Borschahivka 48 km

Ukraine travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 31% of US
price level, 2025
GDP per capita
$5,866
2025
Happiness
4.7 / 10
World Happiness, 2025
Safe drinking water
88%
of population, 2024
Homicide rate
3.8
per 100k, 2021
Road deaths
10.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 526

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 Fastiv (50.078°, 29.9196°, elevation 217 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).