Łomża weather in July

In July, Łomża sees average daytime highs of 23°C and overnight lows near 13°C, with 83 mm of rain across 12.7 wet days and about 16.2 hours of daylight. It is the 1st-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 23°C in the first days to 24°C by the end. The sky is clear or mostly clear about 23% of the time in July, and the air most often feels dry.

Daylight stretches from about 16 h 42 min at the start of July to 15 h 30 min by month's end. Set against the rest of the year, July is Łomża's 2nd-clearest and 11th-windiest month. For the whole year in context, see Łomża's year-round climate.

Daytime high: 23°; 1st warmest
Overnight low: 13°; 12th coldest
Rainfall: 83 mm; 12.7 wet days
Daylight: 16 h 12 min; 3:30 AM – 7:45 PM
Cloud cover: 61%; 2nd clearest
Wind: 11 km/h; 11th windiest
Solar energy: 5.24 kWh/m²
Travel score: 6.5; out of 10

Łomża is City with powiat rights of Poland.

Density: 1,879/km²; people per km²
Founded: ~850 CE

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

← June Łomża year-round climate August →Best places to visit in July

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 23°C in the first days to 24°C by the end.

A typical July day in Łomża reaches about 23°C in the afternoon and slips back to 13°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 29°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.

	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	31
Avg high (°C)	22	22	23	23	23	23	23	23	23	23	23	23	23	23	23	23	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24
Avg low (°C)	12	12	13	13	13	13	13	13	13	13	13	13	13	13	13	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14

	Avg high (°C)	Avg low (°C)
1	22	12
2	22	12
3	23	13
4	23	13
5	23	13
6	23	13
7	23	13
8	23	13
9	23	13
10	23	13
11	23	13
12	23	13
13	23	13
14	23	13
15	23	13
16	23	14
17	24	14
18	24	14
19	24	14
20	24	14
21	24	14
22	24	14
23	24	14
24	24	14
25	24	14
26	24	14
27	24	14
28	24	14
29	24	14
30	24	14
31	24	14

How July really feels in Łomża

Once humidity and wind are folded in, July 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

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

Łomża weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 1st-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° / -5°	40	10.6	6.8	7.9	0.0
Feb	1° / -4°	38	8.9	5.8	9.4	0.0
Mar	6° / -1°	41	9.9	3.6	11.5	0.5
Apr	13° / 3°	44	9.7	1.1	13.6	3.5
May	18° / 8°	65	12.1	0	15.6	5.6
Jun	21° / 11°	75	12	0	16.6	6.1
Jul	23° / 13°	83	12.7	0	16.2	6.5
Aug	23° / 13°	69	10.8	0	14.5	6.7
Sep	18° / 9°	59	9.8	0	12.4	5.6
Oct	11° / 5°	49	9.3	0.6	10.3	2.9
Nov	5° / 1°	40	9.6	2.8	8.4	0.4
Dec	1° / -3°	44	10	5.3	7.4	0.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 21% of July, with mostly cloudy or overcast conditions the remaining 56%.

	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	31
Clearer (%)	42	43	44	44	44	44	44	44	44	43	43	42	43	43	42	42	41	42	43	43	44	45	45	46	46	46	46	47	46	48	48
Cloudier (%)	58	57	56	56	56	56	56	56	56	57	57	58	57	57	58	58	59	58	57	57	56	55	55	54	54	54	54	53	54	52	52

	Clearer (%)	Cloudier (%)
1	42	58
2	43	57
3	44	56
4	44	56
5	44	56
6	44	56
7	44	56
8	44	56
9	44	56
10	43	57
11	43	57
12	42	58
13	43	57
14	43	57
15	42	58
16	42	58
17	41	59
18	42	58
19	43	57
20	43	57
21	44	56
22	45	55
23	45	55
24	46	54
25	46	54
26	46	54
27	46	54
28	47	53
29	46	54
30	48	52
31	48	52

Chance of precipitation in July

Any precipitation

Łomża gets around 83 mm of rain over 12.7 wet days in July, the wettest month. 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	31
Rain chance (%)	42	42	42	41	41	41	41	41	41	41	41	41	41	41	41	41	41	41	41	41	41	40	40	40	39	39	38	38	37	37	37

	Rain chance (%)
1	42
2	42
3	42
4	41
5	41
6	41
7	41
8	41
9	41
10	41
11	41
12	41
13	41
14	41
15	41
16	41
17	41
18	41
19	41
20	41
21	41
22	40
23	40
24	40
25	39
26	39
27	38
28	38
29	37
30	37
31	37

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 46% 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	31
Dry (%)	60	60	58	58	56	55	53	52	51	50	49	49	48	47	46	45	44	43	43	42	41	40	40	39	39	38	38	38	38	38	38
Comfortable (%)	26	26	27	27	28	29	29	30	30	30	30	31	31	31	32	32	33	33	34	34	34	34	34	34	34	34	33	33	33	33	32
Humid (%)	11	11	12	12	13	13	14	14	15	16	16	16	17	17	17	18	18	18	19	19	20	20	21	22	23	23	24	25	25	25	26
Muggy (%)	3	3	3	3	3	3	4	4	4	4	4	4	4	4	4	5	5	5	5	5	5	5	5	5	5	5	4	4	4	4	4

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	60	26	11	3
2	60	26	11	3
3	58	27	12	3
4	58	27	12	3
5	56	28	13	3
6	55	29	13	3
7	53	29	14	4
8	52	30	14	4
9	51	30	15	4
10	50	30	16	4
11	49	30	16	4
12	49	31	16	4
13	48	31	17	4
14	47	31	17	4
15	46	32	17	4
16	45	32	18	5
17	44	33	18	5
18	43	33	18	5
19	43	34	19	5
20	42	34	19	5
21	41	34	20	5
22	40	34	20	5
23	40	34	21	5
24	39	34	22	5
25	39	34	23	5
26	38	34	23	5
27	38	33	24	4
28	38	33	25	4
29	38	33	25	4
30	38	33	25	4
31	38	32	26	4

Wind in July

Winds average 11 km/h in July.

Across July, daily wind ranges from about 11 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	31
Wind speed (km/h)	12	12	12	12	12	12	12	12	12	12	12	12	12	12	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11
Feels	light breeze	light breeze	light breeze	light breeze	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	12	light breeze
2	12	light breeze
3	12	light breeze
4	12	light breeze
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	11	calm
16	11	calm
17	11	calm
18	11	calm
19	11	calm
20	11	calm
21	11	calm
22	11	calm
23	11	calm
24	11	calm
25	11	calm
26	11	calm
27	11	calm
28	11	calm
29	11	calm
30	11	calm
31	11	calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 16 h 42 min at the start of July to 15 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over July. Sunrise moves from 3:15 AM to 3:52 AM, and sunset from 7:55 PM to 7:24 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	31
Daylight (h)	16.7	16.6	16.6	16.6	16.6	16.6	16.5	16.5	16.5	16.4	16.4	16.4	16.4	16.3	16.3	16.2	16.2	16.2	16.1	16.1	16.0	16.0	15.9	15.9	15.8	15.8	15.7	15.7	15.6	15.6	15.5
Sunrise (AM)	3:15	3:16	3:17	3:18	3:18	3:19	3:20	3:21	3:22	3:23	3:24	3:25	3:26	3:28	3:29	3:30	3:31	3:33	3:34	3:35	3:37	3:38	3:40	3:41	3:43	3:44	3:46	3:47	3:49	3:50	3:52
Sunset (PM)	7:55	7:54	7:54	7:54	7:53	7:53	7:52	7:52	7:51	7:50	7:49	7:49	7:48	7:47	7:46	7:45	7:44	7:43	7:41	7:40	7:39	7:38	7:36	7:35	7:33	7:32	7:30	7:29	7:27	7:26	7:24

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	16.7	3:15	7:55
2	16.6	3:16	7:54
3	16.6	3:17	7:54
4	16.6	3:18	7:54
5	16.6	3:18	7:53
6	16.6	3:19	7:53
7	16.5	3:20	7:52
8	16.5	3:21	7:52
9	16.5	3:22	7:51
10	16.4	3:23	7:50
11	16.4	3:24	7:49
12	16.4	3:25	7:49
13	16.4	3:26	7:48
14	16.3	3:28	7:47
15	16.3	3:29	7:46
16	16.2	3:30	7:45
17	16.2	3:31	7:44
18	16.2	3:33	7:43
19	16.1	3:34	7:41
20	16.1	3:35	7:40
21	16.0	3:37	7:39
22	16.0	3:38	7:38
23	15.9	3:40	7:36
24	15.9	3:41	7:35
25	15.8	3:43	7:33
26	15.8	3:44	7:32
27	15.7	3:46	7:30
28	15.7	3:47	7:29
29	15.6	3:49	7:27
30	15.6	3:50	7:26
31	15.5	3:52	7:24

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.24 kWh/m².

For context, solar energy here swings from a low near 0.46 kWh/m² to a high of 5.46 kWh/m² in June across the year — July's 5.24 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	31
Solar energy (kWh/m²)	5.4	5.4	5.4	5.4	5.4	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.1	5.1	5.1	5.1	5.1	5.1	5.0	5.0	5.0	5.0	5.0
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	Bright

	Solar energy (kWh/m²)	Level
1	5.4	Bright
2	5.4	Bright
3	5.4	Bright
4	5.4	Bright
5	5.4	Bright
6	5.3	Bright
7	5.3	Bright
8	5.3	Bright
9	5.3	Bright
10	5.3	Bright
11	5.3	Bright
12	5.3	Bright
13	5.3	Bright
14	5.2	Bright
15	5.2	Bright
16	5.2	Bright
17	5.2	Bright
18	5.2	Bright
19	5.2	Bright
20	5.2	Bright
21	5.1	Bright
22	5.1	Bright
23	5.1	Bright
24	5.1	Bright
25	5.1	Bright
26	5.1	Bright
27	5.0	Bright
28	5.0	Bright
29	5.0	Bright
30	5.0	Bright
31	5.0	Bright

Planning a trip in July

Is July a good time to visit Łomża?

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

6.5

Sightseeing

2nd-best month of the year

5.2

Beach & pool

1st-best month of the year

July is a reasonable time to visit Łomża for sightseeing.

What to pack for Łomża in July

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

In July, Łomża sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in Łomża in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 Łomża peaks around June 20 at about 6 (high) — a little sun protection helps at midday. It bottoms out near December 18 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 Łomża?

Łomża sits at 53.2°N, 22.1°E, 103 m above sea level, in Poland. The nearest listed city is Zambrów, 25 km away.

Topography around Łomża

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

Within 3 km, the terrain around Łomża has only modest variations in elevation — a maximum elevation change of 51 m around an average of 112 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 144 m; within 80 km, only modest variations in elevation — a maximum elevation change of 159 m.

The land around Łomża is covered by grassland (39%) and artificial surfaces (29%) within 3 km, cropland (41%), trees (30%) and grassland (25%) within 16 km, and trees (38%), grassland (30%) and cropland (28%) within 80 km.

3 km

51 m

grassland 39%

16 km

144 m

cropland 41%

80 km

159 m

trees 38%

treesgrasslandcroplandartificial surfaceswaterwetland

← June Łomża year-round climate August →Best places to visit in July

July weather nearby: Zambrów 25 km · Ostrołęka 34 km · Ostrów Mazowiecka 43 km · Pisz 53 km · Grajewo 58 km · Łapy 59 km · Białystok 74 km · Ełk 75 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 Łomża (53.1781°, 22.0593°, elevation 103 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	22	12
2	22	12
3	23	13
4	23	13
5	23	13
6	23	13
7	23	13
8	23	13
9	23	13
10	23	13
11	23	13
12	23	13
13	23	13
14	23	13
15	23	13
16	23	14
17	24	14
18	24	14
19	24	14
20	24	14
21	24	14
22	24	14
23	24	14
24	24	14
25	24	14
26	24	14
27	24	14
28	24	14
29	24	14
30	24	14
31	24	14

	Clearer (%)	Cloudier (%)
1	42	58
2	43	57
3	44	56
4	44	56
5	44	56
6	44	56
7	44	56
8	44	56
9	44	56
10	43	57
11	43	57
12	42	58
13	43	57
14	43	57
15	42	58
16	42	58
17	41	59
18	42	58
19	43	57
20	43	57
21	44	56
22	45	55
23	45	55
24	46	54
25	46	54
26	46	54
27	46	54
28	47	53
29	46	54
30	48	52
31	48	52

	Rain chance (%)
1	42
2	42
3	42
4	41
5	41
6	41
7	41
8	41
9	41
10	41
11	41
12	41
13	41
14	41
15	41
16	41
17	41
18	41
19	41
20	41
21	41
22	40
23	40
24	40
25	39
26	39
27	38
28	38
29	37
30	37
31	37

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	60	26	11	3
2	60	26	11	3
3	58	27	12	3
4	58	27	12	3
5	56	28	13	3
6	55	29	13	3
7	53	29	14	4
8	52	30	14	4
9	51	30	15	4
10	50	30	16	4
11	49	30	16	4
12	49	31	16	4
13	48	31	17	4
14	47	31	17	4
15	46	32	17	4
16	45	32	18	5
17	44	33	18	5
18	43	33	18	5
19	43	34	19	5
20	42	34	19	5
21	41	34	20	5
22	40	34	20	5
23	40	34	21	5
24	39	34	22	5
25	39	34	23	5
26	38	34	23	5
27	38	33	24	4
28	38	33	25	4
29	38	33	25	4
30	38	33	25	4
31	38	32	26	4

	Avg high (°C)	Avg low (°C)
1	22	12
2	22	12
3	23	13
4	23	13
5	23	13
6	23	13
7	23	13
8	23	13
9	23	13
10	23	13
11	23	13
12	23	13
13	23	13
14	23	13
15	23	13
16	23	14
17	24	14
18	24	14
19	24	14
20	24	14
21	24	14
22	24	14
23	24	14
24	24	14
25	24	14
26	24	14
27	24	14
28	24	14
29	24	14
30	24	14
31	24	14

	Clearer (%)	Cloudier (%)
1	42	58
2	43	57
3	44	56
4	44	56
5	44	56
6	44	56
7	44	56
8	44	56
9	44	56
10	43	57
11	43	57
12	42	58
13	43	57
14	43	57
15	42	58
16	42	58
17	41	59
18	42	58
19	43	57
20	43	57
21	44	56
22	45	55
23	45	55
24	46	54
25	46	54
26	46	54
27	46	54
28	47	53
29	46	54
30	48	52
31	48	52

	Rain chance (%)
1	42
2	42
3	42
4	41
5	41
6	41
7	41
8	41
9	41
10	41
11	41
12	41
13	41
14	41
15	41
16	41
17	41
18	41
19	41
20	41
21	41
22	40
23	40
24	40
25	39
26	39
27	38
28	38
29	37
30	37
31	37

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	60	26	11	3
2	60	26	11	3
3	58	27	12	3
4	58	27	12	3
5	56	28	13	3
6	55	29	13	3
7	53	29	14	4
8	52	30	14	4
9	51	30	15	4
10	50	30	16	4
11	49	30	16	4
12	49	31	16	4
13	48	31	17	4
14	47	31	17	4
15	46	32	17	4
16	45	32	18	5
17	44	33	18	5
18	43	33	18	5
19	43	34	19	5
20	42	34	19	5
21	41	34	20	5
22	40	34	20	5
23	40	34	21	5
24	39	34	22	5
25	39	34	23	5
26	38	34	23	5
27	38	33	24	4
28	38	33	25	4
29	38	33	25	4
30	38	33	25	4
31	38	32	26	4

	Avg high (°C)	Avg low (°C)
1	22	12
2	22	12
3	23	13
4	23	13
5	23	13
6	23	13
7	23	13
8	23	13
9	23	13
10	23	13
11	23	13
12	23	13
13	23	13
14	23	13
15	23	13
16	23	14
17	24	14
18	24	14
19	24	14
20	24	14
21	24	14
22	24	14
23	24	14
24	24	14
25	24	14
26	24	14
27	24	14
28	24	14
29	24	14
30	24	14
31	24	14

	Clearer (%)	Cloudier (%)
1	42	58
2	43	57
3	44	56
4	44	56
5	44	56
6	44	56
7	44	56
8	44	56
9	44	56
10	43	57
11	43	57
12	42	58
13	43	57
14	43	57
15	42	58
16	42	58
17	41	59
18	42	58
19	43	57
20	43	57
21	44	56
22	45	55
23	45	55
24	46	54
25	46	54
26	46	54
27	46	54
28	47	53
29	46	54
30	48	52
31	48	52

	Rain chance (%)
1	42
2	42
3	42
4	41
5	41
6	41
7	41
8	41
9	41
10	41
11	41
12	41
13	41
14	41
15	41
16	41
17	41
18	41
19	41
20	41
21	41
22	40
23	40
24	40
25	39
26	39
27	38
28	38
29	37
30	37
31	37

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	60	26	11	3
2	60	26	11	3
3	58	27	12	3
4	58	27	12	3
5	56	28	13	3
6	55	29	13	3
7	53	29	14	4
8	52	30	14	4
9	51	30	15	4
10	50	30	16	4
11	49	30	16	4
12	49	31	16	4
13	48	31	17	4
14	47	31	17	4
15	46	32	17	4
16	45	32	18	5
17	44	33	18	5
18	43	33	18	5
19	43	34	19	5
20	42	34	19	5
21	41	34	20	5
22	40	34	20	5
23	40	34	21	5
24	39	34	22	5
25	39	34	23	5
26	38	34	23	5
27	38	33	24	4
28	38	33	25	4
29	38	33	25	4
30	38	33	25	4
31	38	32	26	4