Zaječar weather in May

In May, Zaječar sees average daytime highs of 22°C and overnight lows near 11°C, with 62 mm of rain across 11 wet days and about 14.5 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 23°C by the end. The sky is clear or mostly clear about 30% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 54 min at the start of May to 15 hours by month's end. Set against the rest of the year, May is Zaječar's 7th-clearest and 6th-windiest month. For the whole year in context, see Zaječar's year-round climate.

Daytime high
22°
5th warmest
Overnight low
11°
8th coldest
Rainfall
62 mm
11 wet days
Daylight
14 h 30 min
4:11 AM – 6:43 PM
Cloud cover
58%
7th clearest
Wind
9 km/h
6th windiest
Solar energy
5.81 kWh/m²
Travel score
6.5
out of 10

Zaječar is city in Serbia.

Density
47/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 20°C in the first days to 23°C by the end.

A typical May day in Zaječar reaches about 22°C in the afternoon and slips back to 11°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 27°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
1209
2209
32010
42010
52110
62110
72110
82110
92110
102110
112111
122111
132111
142211
152211
162211
172211
182211
192212
202212
212212
222212
232312
242312
252312
262312
272312
282313
292313
302313
312413

How May really feels in Zaječar

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

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Zaječar weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°529.16.79.10.0
Feb / -2°478.55.310.20.4
Mar11° / 599.53.511.62.8
Apr17° / 6010.30.413.25.2
May22° / 11°6211014.56.5
Jun26° / 15°6111015.26.7
Jul28° / 16°559.2014.96.3
Aug28° / 16°427.1013.86.6
Sep23° / 12°507.2012.37.4
Oct16° / 558.10.310.85.3
Nov / 588.92.79.51.9
Dec / -2°609.45.18.80.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 20% of May, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25050
35050
44951
54951
64951
75050
84951
94951
104852
114852
124753
134753
144753
154753
164753
174852
184852
194852
204951
214951
224951
234951
245050
255149
265149
275248
285347
295347
305545
315545

Chance of precipitation in May

Any precipitation

Zaječar gets around 62 mm of rain over 11 wet days in May, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 36% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
133
233
333
434
535
635
736
837
938
1038
1139
1239
1339
1439
1538
1638
1738
1837
1937
2036
2135
2235
2334
2434
2534
2634
2734
2834
2935
3035
3136

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the dry band about 73% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19370
29280
39190
490100
589110
688120
787130
886140
985150
1084160
1183170
1280191
1379201
1477221
1575241
1674251
1772271
1870291
1969301
2067321
2165332
2264342
2362353
2462353
2560364
2659374
2758375
2856386
2955387
3053389
31513910

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 54 min at the start of May to 15 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over May. Sunrise moves from 4:30 AM to 3:58 AM, and sunset from 6:26 PM to 6:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.94:306:26
214.04:296:27
314.04:286:28
414.14:266:29
514.14:256:31
614.14:236:32
714.24:226:33
814.24:216:34
914.34:196:35
1014.34:186:37
1114.34:176:38
1214.44:166:39
1314.44:146:40
1414.54:136:41
1514.54:126:42
1614.54:116:43
1714.64:106:44
1814.64:096:46
1914.64:086:47
2014.74:076:48
2114.74:066:49
2214.74:056:50
2314.84:046:51
2414.84:036:52
2514.84:026:53
2614.94:026:54
2714.94:016:55
2814.94:006:56
2915.04:006:57
3015.03:596:58
3115.03:586:58

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.81 kWh/m².

For context, solar energy here swings from a low near 1.3 kWh/m² to a high of 6.37 kWh/m² in June across the year — May's 5.81 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
245.9Bright
256.0Bright
266.0Bright
276.0Intense
286.0Intense
296.0Intense
306.1Intense
316.1Intense
Planning a trip in May

Is May a good time to visit Zaječar?

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

6.5
Sightseeing
4th-best month of the year
4.4
Beach & pool
5th-best month of the year

May is a reasonable time to visit Zaječar for sightseeing.

What to pack for Zaječar in May

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

In May, Zaječar sees daytime highs around 22°C and nights near 11°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

UV index in Zaječar in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Zaječar peaks around July 11 at about 8 (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 highHighModerateLowJul 11UV 8Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr8Very high
May6High
Jun8Very high
Jul8Very high
Aug7Very high
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Zaječar?

Zaječar sits at 43.9°N, 22.3°E, 130 m above sea level, in Serbia. The nearest listed city is Bor, 23 km away.

KnjazevacNegotinSokobanjaVidinCalafatNišĆuprija

Topography around Zaječar

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

Within 3 km, the terrain around Zaječar has only modest variations in elevation — a maximum elevation change of 166 m around an average of 167 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 587 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,116 m.

The land around Zaječar is covered by grassland (33%), trees (28%) and artificial surfaces (23%) within 3 km, trees (50%) and grassland (29%) within 16 km, and trees (56%) and cropland (24%) within 80 km.

3 km
166 m
16 km
587 m
80 km
2,116 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Bor 23 km · Knjazevac 38 km · Negotin 42 km · Sokobanja 43 km · Vidin 50 km · Calafat 54 km · Niš 71 km · Ćuprija 72 km

Serbia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 45% of US
price level, 2025
GDP per capita
$15,262
2025
Happiness
6.7 / 10
World Happiness, 2025
Safe drinking water
75%
of population, 2024
Homicide rate
1.3
per 100k, 2023
Road deaths
7.5
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 579
Religion
Serbian Orthodox 81%unknown 5%Islam 4%Catholic 4%

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 Zaječar (43.9036°, 22.2641°, elevation 130 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).