Sérres weather in May

In May, Sérres sees average daytime highs of 24°C and overnight lows near 13°C, with 69 mm of rain across 10.8 wet days and about 14.3 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 25°C by the end. The sky is clear or mostly clear about 39% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of May to 14 h 42 min by month's end. Set against the rest of the year, May is Sérres's 6th-clearest and 4th-windiest month. For the whole year in context, see Sérres's year-round climate.

Daytime high
24°
5th warmest
Overnight low
13°
8th coldest
Rainfall
69 mm
10.8 wet days
Daylight
14 h 18 min
5:13 AM – 7:31 PM
Cloud cover
51%
6th clearest
Wind
6 km/h
4th windiest
Solar energy
6.13 kWh/m²
Travel score
6.9
out of 10

Sérres is city in Central Macedonia, Greece.

Density
97/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 22°C in the first days to 25°C by the end.

A typical May day in Sérres reaches about 24°C in the afternoon and slips back to 13°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 28°C. Set against its neighbours, May runs about 5°C warmer than April and about 5°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12111
22211
32211
42211
52211
62211
72211
82312
92312
102312
112312
122312
132312
142312
152413
162413
172413
182413
192413
202413
212413
222413
232414
242514
252514
262514
272514
282514
292514
302514
312614

How May really feels in Sérres

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.

Sérres weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 567.92.39.41.3
Feb10° / 548.5210.42.3
Mar14° / 7010.21.311.74.1
Apr18° / 6310.40.113.15.9
May24° / 13°6910.8014.36.9
Jun28° / 17°559.1014.96.3
Jul31° / 19°426.5014.75.3
Aug31° / 19°335.8013.65.3
Sep26° / 15°476.7012.37.5
Oct20° / 10°627.7010.96.8
Nov14° / 6580.39.74.2
Dec / 788.61.69.11.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% 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 41%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25743
35743
45644
55743
65743
75644
85743
95743
105644
115644
125644
135743
145743
155743
165842
175842
185842
195941
205941
216040
226040
236139
246238
256337
266436
276436
286535
296535
306733
316733

Chance of precipitation in May

Any precipitation

Sérres gets around 69 mm of rain over 10.8 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
134
234
334
434
534
635
735
835
936
1036
1136
1236
1336
1436
1536
1636
1736
1837
1937
2036
2136
2236
2335
2435
2535
2634
2734
2834
2934
3034
3134

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 66% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19190
290100
388120
487130
586140
684160
782171
880191
979201
1078211
1175232
1274242
1371263
1470273
1568293
1665314
1764324
1862344
1961354
2058375
2157385
2256395
2354406
2453416
2551427
2649437
2747448
2845459
29444610
30424611
31404613

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over May. Sunrise moves from 5:31 AM to 5:02 AM, and sunset from 7:15 PM to 7:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:317:15
213.85:307:16
313.85:287:17
413.95:277:18
513.95:267:19
613.95:247:20
714.05:237:22
814.05:227:23
914.05:217:24
1014.15:207:25
1114.15:197:26
1214.25:177:27
1314.25:167:28
1414.25:157:29
1514.35:147:30
1614.35:137:31
1714.35:127:32
1814.45:117:33
1914.45:107:34
2014.45:107:35
2114.45:097:36
2214.55:087:37
2314.55:077:38
2414.55:067:38
2514.65:067:39
2614.65:057:40
2714.65:047:41
2814.65:047:42
2914.75:037:43
3014.75:037:44
3114.75:027:44

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.13 kWh/m².

For context, solar energy here swings from a low near 1.61 kWh/m² to a high of 6.8 kWh/m² in June across the year — May's 6.13 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
76.0Bright
86.0Bright
96.0Bright
106.0Intense
116.0Intense
126.0Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.4Intense
296.4Intense
306.4Intense
316.5Intense
Planning a trip in May

Is May a good time to visit Sérres?

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

6.9
Sightseeing
2nd-best month of the year
5.5
Beach & pool
5th-best month of the year

May is a reasonable time to visit Sérres for sightseeing.

What to pack for Sérres in May

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

In May, Sérres sees daytime highs around 24°C and nights near 13°C. Pack sun protection. Worth having: light clothes and rain gear. About 11 days see rain.

sun protectionlight clothesrain gear

Sea temperature near Sérres in May

The nearest coast averages about 19°C in May — 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 26°C and coldest in February near 13°C.

It's comfortable for a long swim from May 26 to Oct 24 — about 5 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr14Bracing
May19Cool
Jun23Refreshing
Jul26Warm
Aug26Warm
Sep24Warm
Oct21Refreshing
Nov18Cool
Dec15Cool

UV index in Sérres 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 Sérres peaks around June 22 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.

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

Air quality in Sérres in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Sérres 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 Sérres?

Sérres sits at 41.1°N, 23.5°E, 41 m above sea level, in Greece. The nearest listed city is Petrich, 45 km away.

PetrichDrámaLagkadásGotse DelchevKilkísSandanskiChortiátisOraiókastro

Topography around Sérres

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

Within 3 km, the terrain around Sérres has only modest variations in elevation — a maximum elevation change of 194 m around an average of 64 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,853 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,876 m.

The land around Sérres is covered by artificial surfaces (29%), cropland (25%) and trees (21%) within 3 km, cropland (50%), trees (20%) and grassland (20%) within 16 km, and trees (50%) and cropland (21%) within 80 km.

3 km
194 m
16 km
1,853 m
80 km
2,876 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Petrich 45 km · Dráma 51 km · Lagkadás 55 km · Gotse Delchev 56 km · Kilkís 57 km · Sandanski 58 km · Chortiátis 65 km · Oraiókastro 66 km

Greece travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$26,948
2025
Happiness
5.7 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
0.8
per 100k, 2023
Road deaths
8.3
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 592
Religion
other 3%Muslim 2%

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 Sérres (41.085°, 23.5476°, elevation 41 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).