Ostrołęka weather in June

In June, Ostrołęka sees average daytime highs of 22°C and overnight lows near 11°C, with 70 mm of rain across 11.8 wet days and about 16.6 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 21% of the time in June, and the air most often feels dry.

Daylight stretches from about 16 h 18 min at the start of June to 16 h 42 min by month's end. Set against the rest of the year, June is Ostrołęka's 5th-clearest and 10th-windiest month. For the whole year in context, see Ostrołęka's year-round climate.

Daytime high: 22°; 3rd warmest
Overnight low: 11°; 10th coldest
Rainfall: 70 mm; 11.8 wet days
Daylight: 16 h 42 min; 3:14 AM – 7:54 PM
Cloud cover: 63%; 5th clearest
Wind: 12 km/h; 10th windiest
Solar energy: 5.46 kWh/m²
Travel score: 6.2; out of 10

Ostrołęka is city with powiat rights of Poland.

Density: 1,919/km²; people per km²
Founded: 1050

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

← May Ostrołęka year-round climate July →Best places to visit in June

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 22°C through the month.

A typical June day in Ostrołęka reaches about 22°C in the afternoon and slips back to 11°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 28°C. Set against its neighbours, June runs about 3°C warmer than May and about 2°C cooler than July.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	21	21	21	21	21	21	21	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	23
Avg low (°C)	10	10	10	10	11	11	11	11	11	11	11	11	11	11	11	12	12	12	12	12	12	12	12	12	12	12	12	12	12	13

	Avg high (°C)	Avg low (°C)
1	21	10
2	21	10
3	21	10
4	21	10
5	21	11
6	21	11
7	21	11
8	22	11
9	22	11
10	22	11
11	22	11
12	22	11
13	22	11
14	22	11
15	22	11
16	22	12
17	22	12
18	22	12
19	22	12
20	22	12
21	22	12
22	22	12
23	22	12
24	22	12
25	22	12
26	22	12
27	22	12
28	22	12
29	22	12
30	23	13

How June really feels in Ostrołęka

Once humidity and wind are folded in, June 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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

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

Ostrołęka weather by month

How June compares with the rest of the year at a glance. June is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	0° / -4°	39	10.3	6.3	7.9	0.0
Feb	2° / -4°	36	9.1	5.5	9.5	0.0
Mar	6° / -1°	39	10	3.2	11.5	0.6
Apr	13° / 3°	44	10.1	0.9	13.6	3.6
May	19° / 8°	66	11.9	0	15.5	5.7
Jun	22° / 11°	70	11.8	0	16.6	6.2
Jul	24° / 14°	79	12.2	0	16.2	6.6
Aug	23° / 13°	62	10.6	0	14.5	6.7
Sep	18° / 9°	57	9.7	0	12.4	5.7
Oct	12° / 5°	47	9.6	0.3	10.3	3.1
Nov	6° / 1°	39	9.6	2.5	8.4	0.4
Dec	2° / -3°	42	9.7	4.7	7.4	0.0

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 21% of June, with mostly cloudy or overcast conditions the remaining 59%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	45	45	46	45	45	45	45	45	45	44	44	42	42	42	40	39	38	37	37	37	37	37	37	38	39	39	40	40	42	42
Cloudier (%)	55	55	54	55	55	55	55	55	55	56	56	58	58	58	60	61	62	63	63	63	63	63	63	62	61	61	60	60	58	58

	Clearer (%)	Cloudier (%)
1	45	55
2	45	55
3	46	54
4	45	55
5	45	55
6	45	55
7	45	55
8	45	55
9	45	55
10	44	56
11	44	56
12	42	58
13	42	58
14	42	58
15	40	60
16	39	61
17	38	62
18	37	63
19	37	63
20	37	63
21	37	63
22	37	63
23	37	63
24	38	62
25	39	61
26	39	61
27	40	60
28	40	60
29	42	58
30	42	58

Chance of precipitation in June

Any precipitation

Ostrołęka gets around 70 mm of rain over 11.8 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 40% and peaks near 42% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	38	38	38	38	37	37	37	38	38	38	38	39	39	40	40	41	41	42	42	42	42	42	42	42	42	41	41	41	41	40

	Rain chance (%)
1	38
2	38
3	38
4	38
5	37
6	37
7	37
8	38
9	38
10	38
11	38
12	39
13	39
14	40
15	40
16	41
17	41
18	42
19	42
20	42
21	42
22	42
23	42
24	42
25	42
26	41
27	41
28	41
29	41
30	40

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the dry band about 71% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	80	79	78	78	75	75	75	74	74	74	73	73	71	71	71	71	70	70	70	69	69	68	68	66	65	64	64	63	61	60
Comfortable (%)	15	16	16	16	17	17	17	17	17	17	17	17	18	18	18	18	19	19	19	20	20	21	21	22	23	24	24	25	26	26
Humid (%)	5	5	6	6	7	7	7	8	8	8	9	9	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	11
Muggy (%)	0	0	0	0	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	2	2	3	3

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	80	15	5	0
2	79	16	5	0
3	78	16	6	0
4	78	16	6	0
5	75	17	7	1
6	75	17	7	1
7	75	17	7	1
8	74	17	8	1
9	74	17	8	1
10	74	17	8	1
11	73	17	9	1
12	73	17	9	1
13	71	18	10	1
14	71	18	10	1
15	71	18	10	1
16	71	18	10	1
17	70	19	10	1
18	70	19	10	1
19	70	19	10	1
20	69	20	10	1
21	69	20	10	1
22	68	21	10	1
23	68	21	10	1
24	66	22	10	2
25	65	23	10	2
26	64	24	10	2
27	64	24	10	2
28	63	25	10	2
29	61	26	10	3
30	60	26	11	3

Wind in June

Winds average 12 km/h in June.

Across June, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (km/h)	Feels
1	12	calm
2	12	calm
3	12	calm
4	12	calm
5	12	calm
6	12	calm
7	12	calm
8	12	calm
9	12	calm
10	12	calm
11	12	calm
12	12	calm
13	12	calm
14	12	calm
15	12	calm
16	12	calm
17	12	calm
18	12	calm
19	12	calm
20	12	calm
21	12	light breeze
22	12	light breeze
23	12	light breeze
24	12	light breeze
25	12	light breeze
26	12	light breeze
27	12	light breeze
28	12	light breeze
29	12	light breeze
30	12	light breeze

Sunrise & sunset in June

DaylightNight

Daylight runs from about 16 h 18 min at the start of June to 16 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over June. Sunrise moves from 3:22 AM to 3:17 AM, and sunset from 7:40 PM to 7:56 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	16.3	16.3	16.4	16.4	16.4	16.5	16.5	16.5	16.5	16.6	16.6	16.6	16.6	16.6	16.7	16.7	16.7	16.7	16.7	16.7	16.7	16.7	16.7	16.7	16.7	16.7	16.7	16.7	16.7	16.7
Sunrise (AM)	3:22	3:21	3:20	3:20	3:19	3:18	3:18	3:17	3:16	3:16	3:15	3:15	3:15	3:14	3:14	3:14	3:14	3:14	3:14	3:14	3:14	3:14	3:14	3:15	3:15	3:15	3:16	3:16	3:17	3:17
Sunset (PM)	7:40	7:41	7:43	7:44	7:45	7:46	7:47	7:48	7:49	7:50	7:50	7:51	7:52	7:53	7:53	7:54	7:54	7:55	7:55	7:56	7:56	7:56	7:56	7:57	7:57	7:57	7:57	7:57	7:57	7:56

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	16.3	3:22	7:40
2	16.3	3:21	7:41
3	16.4	3:20	7:43
4	16.4	3:20	7:44
5	16.4	3:19	7:45
6	16.5	3:18	7:46
7	16.5	3:18	7:47
8	16.5	3:17	7:48
9	16.5	3:16	7:49
10	16.6	3:16	7:50
11	16.6	3:15	7:50
12	16.6	3:15	7:51
13	16.6	3:15	7:52
14	16.6	3:14	7:53
15	16.7	3:14	7:53
16	16.7	3:14	7:54
17	16.7	3:14	7:54
18	16.7	3:14	7:55
19	16.7	3:14	7:55
20	16.7	3:14	7:56
21	16.7	3:14	7:56
22	16.7	3:14	7:56
23	16.7	3:14	7:56
24	16.7	3:15	7:57
25	16.7	3:15	7:57
26	16.7	3:15	7:57
27	16.7	3:16	7:57
28	16.7	3:16	7:57
29	16.7	3:17	7:57
30	16.7	3:17	7:56

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.46 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 0.48 kWh/m² to a high of 5.46 kWh/m² in June across the year — June's 5.46 kWh/m² sits near the top of that range.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.5	5.5	5.5	5.5	5.5	5.4	5.4	5.4	5.4	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.4	5.4	5.4
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.6	Bright
2	5.6	Bright
3	5.6	Bright
4	5.6	Bright
5	5.6	Bright
6	5.6	Bright
7	5.6	Bright
8	5.6	Bright
9	5.6	Bright
10	5.5	Bright
11	5.5	Bright
12	5.5	Bright
13	5.5	Bright
14	5.5	Bright
15	5.4	Bright
16	5.4	Bright
17	5.4	Bright
18	5.4	Bright
19	5.3	Bright
20	5.3	Bright
21	5.3	Bright
22	5.3	Bright
23	5.3	Bright
24	5.3	Bright
25	5.3	Bright
26	5.3	Bright
27	5.3	Bright
28	5.4	Bright
29	5.4	Bright
30	5.4	Bright

Planning a trip in June

Is June a good time to visit Ostrołęka?

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

6.2

Sightseeing

3rd-best month of the year

4.1

Beach & pool

3rd-best month of the year

June is a reasonable time to visit Ostrołęka for sightseeing.

What to pack for Ostrołęka in June

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

In June, Ostrołęka sees daytime highs around 22°C and nights near 11°C. Worth packing: rain gear and sun protection. About 12 days see rain.

rain gearsun protection

UV index in Ostrołęka in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June 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 Ostrołęka peaks around June 20 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	1	3	4	5	6	6	6	4	2	1	0
Level	Low	Low	Moderate	Moderate	High	High	High	High	Moderate	Low	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	1	Low
Mar	3	Moderate
Apr	4	Moderate
May	5	High
Jun	6	High
Jul	6	High
Aug	6	High
Sep	4	Moderate
Oct	2	Low
Nov	1	Low
Dec	0	Low

Location & terrain

Where is Ostrołęka?

Ostrołęka sits at 53.1°N, 21.6°E, 97 m above sea level, in Poland. The nearest listed city is Łomża, 34 km away.

Topography around Ostrołęka

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

Within 3 km, the terrain around Ostrołęka has only modest variations in elevation — a maximum elevation change of 32 m around an average of 100 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 58 m; within 80 km, only modest variations in elevation — a maximum elevation change of 168 m.

The land around Ostrołęka is covered by trees (39%), grassland (30%) and artificial surfaces (26%) within 3 km, trees (42%) and grassland (36%) within 16 km, and trees (39%), cropland (30%) and grassland (28%) within 80 km.

3 km

32 m

trees 39%

16 km

58 m

trees 42%

80 km

168 m

trees 39%

treesgrasslandcroplandartificial surfaceswaterwetland

← May Ostrołęka year-round climate July →Best places to visit in June

June weather nearby: Łomża 34 km · Ostrów Mazowiecka 38 km · Zambrów 46 km · Przasnysz 47 km · Pułtusk 54 km · Wyszków 55 km · Pisz 62 km · Szczytno 66 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

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 Ostrołęka (53.0862°, 21.5757°, elevation 97 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).

	Avg high (°C)	Avg low (°C)
1	21	10
2	21	10
3	21	10
4	21	10
5	21	11
6	21	11
7	21	11
8	22	11
9	22	11
10	22	11
11	22	11
12	22	11
13	22	11
14	22	11
15	22	11
16	22	12
17	22	12
18	22	12
19	22	12
20	22	12
21	22	12
22	22	12
23	22	12
24	22	12
25	22	12
26	22	12
27	22	12
28	22	12
29	22	12
30	23	13

	Clearer (%)	Cloudier (%)
1	45	55
2	45	55
3	46	54
4	45	55
5	45	55
6	45	55
7	45	55
8	45	55
9	45	55
10	44	56
11	44	56
12	42	58
13	42	58
14	42	58
15	40	60
16	39	61
17	38	62
18	37	63
19	37	63
20	37	63
21	37	63
22	37	63
23	37	63
24	38	62
25	39	61
26	39	61
27	40	60
28	40	60
29	42	58
30	42	58

	Rain chance (%)
1	38
2	38
3	38
4	38
5	37
6	37
7	37
8	38
9	38
10	38
11	38
12	39
13	39
14	40
15	40
16	41
17	41
18	42
19	42
20	42
21	42
22	42
23	42
24	42
25	42
26	41
27	41
28	41
29	41
30	40

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	80	15	5	0
2	79	16	5	0
3	78	16	6	0
4	78	16	6	0
5	75	17	7	1
6	75	17	7	1
7	75	17	7	1
8	74	17	8	1
9	74	17	8	1
10	74	17	8	1
11	73	17	9	1
12	73	17	9	1
13	71	18	10	1
14	71	18	10	1
15	71	18	10	1
16	71	18	10	1
17	70	19	10	1
18	70	19	10	1
19	70	19	10	1
20	69	20	10	1
21	69	20	10	1
22	68	21	10	1
23	68	21	10	1
24	66	22	10	2
25	65	23	10	2
26	64	24	10	2
27	64	24	10	2
28	63	25	10	2
29	61	26	10	3
30	60	26	11	3

	Avg high (°C)	Avg low (°C)
1	21	10
2	21	10
3	21	10
4	21	10
5	21	11
6	21	11
7	21	11
8	22	11
9	22	11
10	22	11
11	22	11
12	22	11
13	22	11
14	22	11
15	22	11
16	22	12
17	22	12
18	22	12
19	22	12
20	22	12
21	22	12
22	22	12
23	22	12
24	22	12
25	22	12
26	22	12
27	22	12
28	22	12
29	22	12
30	23	13

	Clearer (%)	Cloudier (%)
1	45	55
2	45	55
3	46	54
4	45	55
5	45	55
6	45	55
7	45	55
8	45	55
9	45	55
10	44	56
11	44	56
12	42	58
13	42	58
14	42	58
15	40	60
16	39	61
17	38	62
18	37	63
19	37	63
20	37	63
21	37	63
22	37	63
23	37	63
24	38	62
25	39	61
26	39	61
27	40	60
28	40	60
29	42	58
30	42	58

	Rain chance (%)
1	38
2	38
3	38
4	38
5	37
6	37
7	37
8	38
9	38
10	38
11	38
12	39
13	39
14	40
15	40
16	41
17	41
18	42
19	42
20	42
21	42
22	42
23	42
24	42
25	42
26	41
27	41
28	41
29	41
30	40

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	80	15	5	0
2	79	16	5	0
3	78	16	6	0
4	78	16	6	0
5	75	17	7	1
6	75	17	7	1
7	75	17	7	1
8	74	17	8	1
9	74	17	8	1
10	74	17	8	1
11	73	17	9	1
12	73	17	9	1
13	71	18	10	1
14	71	18	10	1
15	71	18	10	1
16	71	18	10	1
17	70	19	10	1
18	70	19	10	1
19	70	19	10	1
20	69	20	10	1
21	69	20	10	1
22	68	21	10	1
23	68	21	10	1
24	66	22	10	2
25	65	23	10	2
26	64	24	10	2
27	64	24	10	2
28	63	25	10	2
29	61	26	10	3
30	60	26	11	3

	Avg high (°C)	Avg low (°C)
1	21	10
2	21	10
3	21	10
4	21	10
5	21	11
6	21	11
7	21	11
8	22	11
9	22	11
10	22	11
11	22	11
12	22	11
13	22	11
14	22	11
15	22	11
16	22	12
17	22	12
18	22	12
19	22	12
20	22	12
21	22	12
22	22	12
23	22	12
24	22	12
25	22	12
26	22	12
27	22	12
28	22	12
29	22	12
30	23	13

	Clearer (%)	Cloudier (%)
1	45	55
2	45	55
3	46	54
4	45	55
5	45	55
6	45	55
7	45	55
8	45	55
9	45	55
10	44	56
11	44	56
12	42	58
13	42	58
14	42	58
15	40	60
16	39	61
17	38	62
18	37	63
19	37	63
20	37	63
21	37	63
22	37	63
23	37	63
24	38	62
25	39	61
26	39	61
27	40	60
28	40	60
29	42	58
30	42	58

	Rain chance (%)
1	38
2	38
3	38
4	38
5	37
6	37
7	37
8	38
9	38
10	38
11	38
12	39
13	39
14	40
15	40
16	41
17	41
18	42
19	42
20	42
21	42
22	42
23	42
24	42
25	42
26	41
27	41
28	41
29	41
30	40

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	80	15	5	0
2	79	16	5	0
3	78	16	6	0
4	78	16	6	0
5	75	17	7	1
6	75	17	7	1
7	75	17	7	1
8	74	17	8	1
9	74	17	8	1
10	74	17	8	1
11	73	17	9	1
12	73	17	9	1
13	71	18	10	1
14	71	18	10	1
15	71	18	10	1
16	71	18	10	1
17	70	19	10	1
18	70	19	10	1
19	70	19	10	1
20	69	20	10	1
21	69	20	10	1
22	68	21	10	1
23	68	21	10	1
24	66	22	10	2
25	65	23	10	2
26	64	24	10	2
27	64	24	10	2
28	63	25	10	2
29	61	26	10	3
30	60	26	11	3