Ostróda weather in May

In May, Ostróda sees average daytime highs of 17°C and overnight lows near 8°C, with 64 mm of precipitation across 11.6 wet days and about 15.6 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 26% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 42 min at the start of May to 16 h 24 min by month's end. Set against the rest of the year, May is Ostróda's 3rd-clearest and 9th-windiest month. For the whole year in context, see Ostróda's year-round climate.

Daytime high
17°
4th warmest
Overnight low
8th coldest
Precipitation
64 mm
11.6 wet days
Daylight
15 h 42 min
3:46 AM – 7:26 PM
Cloud cover
62%
3rd clearest
Wind
13 km/h
9th windiest
Solar energy
5.21 kWh/m²
Travel score
5.4
out of 10

Ostróda is city and urban gmina of Poland.

Air quality
Elevated
PM2.5 15.7 µg/m³ · 2019
Density
2,369/km²
people per km²
Founded
1329

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 Ostróda reaches about 17°C in the afternoon and slips back to 8°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 24°C. Set against its neighbours, May runs about 5°C warmer than April and about 3°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1166
2166
3166
4166
5166
6166
7177
8177
9177
10177
11177
12177
13177
14177
15178
16178
17178
18188
19188
20188
21188
22188
23189
24189
25189
26199
27199
28199
29199
30199
311910

How May really feels in Ostróda

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.

Ostróda 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 / -4°4611.16.57.80.0
Feb / -4°399.35.49.40.0
Mar / -1°4410.24.111.50.4
Apr12° / 4210.11.213.73.2
May17° / 6411.60.115.65.4
Jun20° / 11°7212.3016.75.9
Jul22° / 13°8613.5016.36.2
Aug22° / 13°6811.7014.66.4
Sep17° / 6010012.55.4
Oct12° / 5210.40.310.32.9
Nov / 439.92.48.30.4
Dec / -2°4810.85.77.30.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34654
44555
54555
64555
74456
84456
94357
104258
114258
124258
134159
144159
154159
164159
174159
184258
194258
204258
214258
224357
234357
244357
254357
264456
274456
284456
294555
304654
314654

Chance of precipitation in May

Any precipitation

Ostróda gets around 64 mm of rain and snow over 11.6 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 37% and peaks near 39% 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
735
836
937
1037
1138
1238
1338
1439
1539
1639
1739
1839
1939
2039
2139
2239
2339
2438
2538
2637
2737
2836
2936
3035
3135

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
109730
119640
129640
139550
149460
159460
169370
179370
189280
199181
209091
219091
2289101
2388111
2488111
2586122
2685132
2785132
2884142
2984142
3083152
3181163

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
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
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 42 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 102 minutes over May. Sunrise moves from 4:15 AM to 3:26 AM, and sunset from 7:00 PM to 7:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.74:157:00
214.84:137:02
314.94:117:03
414.94:097:05
515.04:077:07
615.14:057:09
715.14:037:11
815.24:017:12
915.33:597:14
1015.33:577:16
1115.43:557:18
1215.43:537:19
1315.53:527:21
1415.63:507:23
1515.63:487:25
1615.73:467:26
1715.73:457:28
1815.83:437:30
1915.83:427:31
2015.93:407:33
2115.93:397:34
2216.03:377:36
2316.03:367:37
2416.13:357:39
2516.13:337:40
2616.23:327:42
2716.23:317:43
2816.33:307:45
2916.33:287:46
3016.33:277:47
3116.43:267:49

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.21 kWh/m².

For context, solar energy here swings from a low near 0.45 kWh/m² to a high of 5.38 kWh/m² in June across the year — May's 5.21 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.1Bright
125.1Bright
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
265.4Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in May

Is May a good time to visit Ostróda?

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
1.5
Beach & pool
5th-best month of the year

May is a reasonable time to visit Ostróda for sightseeing.

What to pack for Ostróda in May

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

In May, Ostróda sees daytime highs around 17°C and nights near 8°C. Worth packing: a warm layer, rain gear and sun protection. About 12 days see rain.

a warm layerrain gearsun protection

UV index in Ostróda 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 Ostróda peaks around June 22 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 22UV 6Dec 19UV 0
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec0Low

Air quality in Ostróda 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 Ostróda is worst in March — around 22 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 10 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Ostróda's WHO annual average of 15.7 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 2222 µg/m³Dec 1510 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb15Moderate
Mar22Moderate
Apr20Moderate
May17Moderate
Jun18Moderate
Jul18Moderate
Aug17Moderate
Sep15Moderate
Oct12Moderate
Nov11Good
Dec10Good
Location & terrain

Where is Ostróda?

Ostróda sits at 53.7°N, 20.0°E, 111 m above sea level, in Poland. The nearest listed city is Iława, 28 km away.

DziałdowoBrodnicaElblągLidzbark WarmińskiKwidzynSzczytno

Topography around Ostróda

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

Within 3 km, the terrain around Ostróda has only modest variations in elevation — a maximum elevation change of 63 m around an average of 110 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 238 m; within 80 km, significant variations in elevation — a maximum elevation change of 325 m.

The land around Ostróda is covered by trees (37%) within 3 km, trees (55%) and cropland (24%) within 16 km, and cropland (39%) and trees (37%) within 80 km.

3 km
63 m
16 km
238 m
80 km
325 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Iława 28 km · Olsztyn 36 km · Działdowo 53 km · Brodnica 61 km · Elbląg 62 km · Lidzbark Warmiński 62 km · Kwidzyn 68 km · Szczytno 69 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 Ostróda (53.6967°, 19.9649°, elevation 111 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).