Suwałki weather in May

In May, Suwałki sees average daytime highs of 18°C and overnight lows near 7°C, with 59 mm of precipitation across 12 wet days and about 15.7 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 16°C in the first days to 19°C by the end. The sky is clear or mostly clear about 25% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 48 min at the start of May to 16 h 24 min by month's end. Set against the rest of the year, May is Suwałki's 3rd-clearest and 9th-windiest month. For the whole year in context, see Suwałki's year-round climate.

Daytime high
18°
4th warmest
Overnight low
8th coldest
Precipitation
59 mm
12 wet days
Daylight
15 h 42 min
3:33 AM – 7:16 PM
Cloud cover
62%
3rd clearest
Wind
13 km/h
9th windiest
Solar energy
5.19 kWh/m²
Travel score
5.4
out of 10

Suwałki is town in Poland.

Air quality
Moderate
PM2.5 12 µg/m³ · 2019
Density
1,049/km²
people per km²
Founded
1690

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 16°C in the first days to 19°C by the end.

A typical May day in Suwałki reaches about 18°C in the afternoon and slips back to 7°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 24°C. Set against its neighbours, May runs about 6°C warmer than April and about 3°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1165
2166
3166
4166
5166
6176
7176
8176
9176
10177
11177
12177
13177
14177
15177
16187
17188
18188
19188
20188
21188
22188
23188
24198
25199
26199
27199
28199
29199
30199
31209

How May really feels in Suwałki

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.

Suwałki weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-1° / -5°4110.97.57.70.0
Feb / -5°369.46.99.40.0
Mar / -2°3910.24.511.50.3
Apr12° / 429.21.213.73.1
May18° / 59120.115.75.4
Jun21° / 11°7211.9016.86.0
Jul23° / 13°8012.2016.46.4
Aug22° / 13°7211.7014.66.4
Sep17° / 559.1012.55.3
Oct11° / 5010.30.610.22.5
Nov / 399.73.18.30.2
Dec / -3°4310.16.27.20.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24852
34852
44753
54654
64654
74654
84654
94555
104555
114357
124357
134357
144357
154258
164159
174159
184159
194159
204159
214159
224159
234258
244357
254456
264456
274456
284555
294555
304654
314654

Chance of precipitation in May

Any precipitation

Suwałki gets around 59 mm of rain and snow over 12 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 38% and peaks near 42% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)
131
232
332
433
534
635
736
837
938
1038
1139
1240
1341
1441
1542
1642
1742
1842
1942
2042
2142
2241
2341
2440
2539
2639
2738
2837
2937
3036
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 92% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
110000
210000
39910
49910
59910
69910
79820
89820
99730
109640
119550
129550
139460
149370
159280
169280
179190
189091
1989101
2089101
2188111
2288111
2387121
2486122
2586122
2686122
2785132
2885132
2984133
3084133
3183143

Wind in May

Winds average 13 km/h in May.

Across May, daily wind ranges from about 12 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
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 48 min at the start of May to 16 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 96 minutes over May. Sunrise moves from 4:02 AM to 3:12 AM, and sunset from 6:49 PM to 7:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.84:026:49
214.94:006:51
314.93:576:53
415.03:556:55
515.13:536:57
615.13:516:59
715.23:497:00
815.23:477:02
915.33:457:04
1015.43:447:06
1115.43:427:08
1215.53:407:09
1315.63:387:11
1415.63:367:13
1515.73:347:15
1615.73:337:16
1715.83:317:18
1815.83:307:20
1915.93:287:21
2015.93:267:23
2116.03:257:25
2216.03:237:26
2316.13:227:28
2416.13:217:29
2516.23:197:31
2616.23:187:32
2716.33:177:34
2816.33:157:35
2916.43:147:36
3016.43:137:38
3116.43:127:39

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.19 kWh/m².

For context, solar energy here swings from a low near 0.43 kWh/m² to a high of 5.42 kWh/m² in June across the year — May's 5.19 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.2Bright
185.2Bright
195.2Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.4Bright
255.4Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.6Bright
Planning a trip in May

Is May a good time to visit Suwałki?

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

5.4
Sightseeing
4th-best month of the year
1.6
Beach & pool
4th-best month of the year

May is a reasonable time to visit Suwałki for sightseeing.

What to pack for Suwałki in May

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

In May, Suwałki sees daytime highs around 18°C and nights near 7°C. Worth packing: a warm layer, rain gear and sun protection. About 12 days see rain.

a warm layerrain gearsun protection

UV index in Suwałki in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Suwałki peaks around June 23 at about 6 (high) — a little sun protection helps at midday. It bottoms out near December 19 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 23UV 6Dec 19UV 0
UV index (midday)Level
Jan1Low
Feb1Low
Mar2Moderate
Apr4Moderate
May5High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec0Low

Air quality in Suwałki 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 Suwałki is worst in July — around 15 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 7 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Suwałki's WHO annual average of 12 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1315 µg/m³Dec 167 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb11Good
Mar15Moderate
Apr15Moderate
May14Moderate
Jun15Moderate
Jul15Moderate
Aug14Moderate
Sep12Moderate
Oct9Good
Nov8Good
Dec7Good
Location & terrain

Where is Suwałki?

Suwałki sits at 54.1°N, 22.9°E, 177 m above sea level, in Poland. The nearest listed city is Olecko, 29 km away.

EłkMarijampolėGrajewoGusevGrodnoGiżycko

Topography around Suwałki

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

Within 3 km, the terrain around Suwałki has only modest variations in elevation — a maximum elevation change of 64 m around an average of 176 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 160 m; within 80 km, significant variations in elevation — a maximum elevation change of 292 m.

The land around Suwałki is covered by artificial surfaces (32%), grassland (30%) and cropland (20%) within 3 km, grassland (34%), trees (30%) and cropland (27%) within 16 km, and trees (36%), cropland (31%) and grassland (29%) within 80 km.

3 km
64 m
16 km
160 m
80 km
292 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Olecko 29 km · Augustów 30 km · Ełk 49 km · Marijampolė 57 km · Grajewo 60 km · Gusev 71 km · Grodno 76 km · Giżycko 77 km

Poland travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 52% of US
price level, 2025
GDP per capita
$28,420
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
0.8
per 100k, 2023
Road deaths
9.4
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 600
Religion
Roman Catholic 71%refused to answer 21%no religion 7%

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 Suwałki (54.1118°, 22.9309°, elevation 177 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).