Łomża weather in August

In August, Łomża sees average daytime highs of 23°C and overnight lows near 13°C, with 69 mm of rain across 10.8 wet days and about 14.5 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 21°C by the end. The sky is clear or mostly clear about 28% of the time in August, and the air most often feels dry.

Daylight stretches from about 15 h 30 min at the start of August to 13 h 30 min by month's end. Set against the rest of the year, August is Łomża's 1st-clearest and 12th-windiest month. For the whole year in context, see Łomża's year-round climate.

Daytime high: 23°; 2nd warmest
Overnight low: 13°; 11th coldest
Rainfall: 69 mm; 10.8 wet days
Daylight: 14 h 36 min; 4:19 AM – 6:53 PM
Cloud cover: 59%; 1st clearest
Wind: 11 km/h; 12th windiest
Solar energy: 4.4 kWh/m²
Travel score: 6.7; 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.

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

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 24°C in the first days to 21°C by the end.

A typical August 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 28°C. Set against its neighbours, August runs on par with July and about 5°C warmer than September.

	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)	24	24	24	24	24	24	24	24	24	24	24	24	24	24	23	23	23	23	23	23	23	22	22	22	22	22	21	21	21	21	21
Avg low (°C)	14	14	14	14	14	14	14	14	14	14	13	13	13	13	13	13	13	13	13	12	12	12	12	12	12	12	12	11	11	11	11

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

How August really feels in Łomża

Once humidity and wind are folded in, August 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

August 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 August compares with the rest of the year at a glance. August is the 2nd-warmest and 3rd-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 53%. Skies tend to cloud over as the month goes on.

	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 (%)	47	48	47	48	48	47	47	47	48	48	49	48	49	50	49	50	49	50	49	49	48	48	48	47	46	45	44	43	43	42	42
Cloudier (%)	53	52	53	52	52	53	53	53	52	52	51	52	51	50	51	50	51	50	51	51	52	52	52	53	54	55	56	57	57	58	58

	Clearer (%)	Cloudier (%)
1	47	53
2	48	52
3	47	53
4	48	52
5	48	52
6	47	53
7	47	53
8	47	53
9	48	52
10	48	52
11	49	51
12	48	52
13	49	51
14	50	50
15	49	51
16	50	50
17	49	51
18	50	50
19	49	51
20	49	51
21	48	52
22	48	52
23	48	52
24	47	53
25	46	54
26	45	55
27	44	56
28	43	57
29	43	57
30	42	58
31	42	58

Chance of precipitation in August

Any precipitation

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

Day to day, the chance of measurable rain averages around 36% and peaks near 39% 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 (%)	36	36	36	36	36	35	35	35	35	35	34	34	34	34	34	34	34	34	34	34	35	35	36	36	37	38	38	39	39	39	39

	Rain chance (%)
1	36
2	36
3	36
4	36
5	36
6	35
7	35
8	35
9	35
10	35
11	34
12	34
13	34
14	34
15	34
16	34
17	34
18	34
19	34
20	34
21	35
22	35
23	36
24	36
25	37
26	38
27	38
28	39
29	39
30	39
31	39

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 54% 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 (%)	38	39	40	41	42	43	44	45	47	48	49	50	51	52	52	54	55	57	58	58	59	60	62	62	64	64	65	68	68	70	71
Comfortable (%)	32	32	32	31	31	31	31	31	31	31	31	31	31	31	31	30	30	29	29	29	29	29	28	28	27	27	27	26	26	25	25
Humid (%)	25	25	25	24	23	22	21	20	19	18	17	16	15	14	14	13	12	12	11	11	10	10	9	9	8	8	7	6	6	5	4
Muggy (%)	4	4	4	4	4	4	4	4	3	3	3	3	3	3	3	3	3	2	2	2	2	1	1	1	1	1	1	0	0	0	0

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	38	32	25	4
2	39	32	25	4
3	40	32	25	4
4	41	31	24	4
5	42	31	23	4
6	43	31	22	4
7	44	31	21	4
8	45	31	20	4
9	47	31	19	3
10	48	31	18	3
11	49	31	17	3
12	50	31	16	3
13	51	31	15	3
14	52	31	14	3
15	52	31	14	3
16	54	30	13	3
17	55	30	12	3
18	57	29	12	2
19	58	29	11	2
20	58	29	11	2
21	59	29	10	2
22	60	29	10	1
23	62	28	9	1
24	62	28	9	1
25	64	27	8	1
26	64	27	8	1
27	65	27	7	1
28	68	26	6	0
29	68	26	6	0
30	70	25	5	0
31	71	25	4	0

Wind in August

Winds average 11 km/h in August, the calmest month.

Across August, 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)	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	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	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	11	calm
2	11	calm
3	11	calm
4	11	calm
5	11	calm
6	11	calm
7	11	calm
8	11	calm
9	11	calm
10	11	calm
11	11	calm
12	11	calm
13	11	calm
14	11	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	12	calm
26	12	calm
27	12	calm
28	12	calm
29	12	calm
30	12	calm
31	12	calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 30 min at the start of August to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 120 minutes over August. Sunrise moves from 3:53 AM to 4:45 AM, and sunset from 7:22 PM to 6:18 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)	15.5	15.4	15.4	15.3	15.2	15.2	15.1	15.1	15.0	14.9	14.9	14.8	14.8	14.7	14.6	14.6	14.5	14.4	14.4	14.3	14.2	14.2	14.1	14.0	14.0	13.9	13.8	13.8	13.7	13.6	13.5
Sunrise (AM)	3:53	3:55	3:57	3:58	4:00	4:02	4:03	4:05	4:07	4:09	4:10	4:12	4:14	4:15	4:17	4:19	4:21	4:22	4:24	4:26	4:28	4:29	4:31	4:33	4:35	4:36	4:38	4:40	4:42	4:44	4:45
Sunset (PM)	7:22	7:20	7:19	7:17	7:15	7:13	7:11	7:09	7:07	7:05	7:03	7:01	6:59	6:57	6:55	6:53	6:51	6:48	6:46	6:44	6:42	6:39	6:37	6:35	6:33	6:30	6:28	6:25	6:23	6:21	6:18

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	15.5	3:53	7:22
2	15.4	3:55	7:20
3	15.4	3:57	7:19
4	15.3	3:58	7:17
5	15.2	4:00	7:15
6	15.2	4:02	7:13
7	15.1	4:03	7:11
8	15.1	4:05	7:09
9	15.0	4:07	7:07
10	14.9	4:09	7:05
11	14.9	4:10	7:03
12	14.8	4:12	7:01
13	14.8	4:14	6:59
14	14.7	4:15	6:57
15	14.6	4:17	6:55
16	14.6	4:19	6:53
17	14.5	4:21	6:51
18	14.4	4:22	6:48
19	14.4	4:24	6:46
20	14.3	4:26	6:44
21	14.2	4:28	6:42
22	14.2	4:29	6:39
23	14.1	4:31	6:37
24	14.0	4:33	6:35
25	14.0	4:35	6:33
26	13.9	4:36	6:30
27	13.8	4:38	6:28
28	13.8	4:40	6:25
29	13.7	4:42	6:23
30	13.6	4:44	6:21
31	13.5	4:45	6:18

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.4 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 — August's 4.4 kWh/m² falls in the middle.

	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)	4.9	4.9	4.9	4.8	4.8	4.8	4.8	4.7	4.7	4.7	4.6	4.6	4.5	4.5	4.5	4.4	4.4	4.4	4.3	4.3	4.2	4.2	4.1	4.0	4.0	3.9	3.9	3.8	3.8	3.7	3.6
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	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	4.9	Bright
2	4.9	Bright
3	4.9	Bright
4	4.8	Bright
5	4.8	Bright
6	4.8	Bright
7	4.8	Bright
8	4.7	Bright
9	4.7	Bright
10	4.7	Bright
11	4.6	Bright
12	4.6	Bright
13	4.5	Bright
14	4.5	Bright
15	4.5	Bright
16	4.4	Bright
17	4.4	Bright
18	4.4	Bright
19	4.3	Bright
20	4.3	Bright
21	4.2	Bright
22	4.2	Bright
23	4.1	Bright
24	4.0	Bright
25	4.0	Moderate
26	3.9	Moderate
27	3.9	Moderate
28	3.8	Moderate
29	3.8	Moderate
30	3.7	Moderate
31	3.6	Moderate

Planning a trip in August

Is August a good time to visit Łomża?

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

6.7

Sightseeing

1st-best month of the year

5.1

Beach & pool

2nd-best month of the year

August is a reasonable time to visit Łomża for sightseeing.

What to pack for Łomża in August

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

In August, Łomża sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes and rain gear. About 11 days see rain.

light clothesrain gear

UV index in Łomża in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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

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

August 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	24	14
2	24	14
3	24	14
4	24	14
5	24	14
6	24	14
7	24	14
8	24	14
9	24	14
10	24	14
11	24	13
12	24	13
13	24	13
14	24	13
15	23	13
16	23	13
17	23	13
18	23	13
19	23	13
20	23	12
21	23	12
22	22	12
23	22	12
24	22	12
25	22	12
26	22	12
27	21	12
28	21	11
29	21	11
30	21	11
31	21	11

	Clearer (%)	Cloudier (%)
1	47	53
2	48	52
3	47	53
4	48	52
5	48	52
6	47	53
7	47	53
8	47	53
9	48	52
10	48	52
11	49	51
12	48	52
13	49	51
14	50	50
15	49	51
16	50	50
17	49	51
18	50	50
19	49	51
20	49	51
21	48	52
22	48	52
23	48	52
24	47	53
25	46	54
26	45	55
27	44	56
28	43	57
29	43	57
30	42	58
31	42	58

	Rain chance (%)
1	36
2	36
3	36
4	36
5	36
6	35
7	35
8	35
9	35
10	35
11	34
12	34
13	34
14	34
15	34
16	34
17	34
18	34
19	34
20	34
21	35
22	35
23	36
24	36
25	37
26	38
27	38
28	39
29	39
30	39
31	39

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	38	32	25	4
2	39	32	25	4
3	40	32	25	4
4	41	31	24	4
5	42	31	23	4
6	43	31	22	4
7	44	31	21	4
8	45	31	20	4
9	47	31	19	3
10	48	31	18	3
11	49	31	17	3
12	50	31	16	3
13	51	31	15	3
14	52	31	14	3
15	52	31	14	3
16	54	30	13	3
17	55	30	12	3
18	57	29	12	2
19	58	29	11	2
20	58	29	11	2
21	59	29	10	2
22	60	29	10	1
23	62	28	9	1
24	62	28	9	1
25	64	27	8	1
26	64	27	8	1
27	65	27	7	1
28	68	26	6	0
29	68	26	6	0
30	70	25	5	0
31	71	25	4	0

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

	Clearer (%)	Cloudier (%)
1	47	53
2	48	52
3	47	53
4	48	52
5	48	52
6	47	53
7	47	53
8	47	53
9	48	52
10	48	52
11	49	51
12	48	52
13	49	51
14	50	50
15	49	51
16	50	50
17	49	51
18	50	50
19	49	51
20	49	51
21	48	52
22	48	52
23	48	52
24	47	53
25	46	54
26	45	55
27	44	56
28	43	57
29	43	57
30	42	58
31	42	58

	Rain chance (%)
1	36
2	36
3	36
4	36
5	36
6	35
7	35
8	35
9	35
10	35
11	34
12	34
13	34
14	34
15	34
16	34
17	34
18	34
19	34
20	34
21	35
22	35
23	36
24	36
25	37
26	38
27	38
28	39
29	39
30	39
31	39

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	38	32	25	4
2	39	32	25	4
3	40	32	25	4
4	41	31	24	4
5	42	31	23	4
6	43	31	22	4
7	44	31	21	4
8	45	31	20	4
9	47	31	19	3
10	48	31	18	3
11	49	31	17	3
12	50	31	16	3
13	51	31	15	3
14	52	31	14	3
15	52	31	14	3
16	54	30	13	3
17	55	30	12	3
18	57	29	12	2
19	58	29	11	2
20	58	29	11	2
21	59	29	10	2
22	60	29	10	1
23	62	28	9	1
24	62	28	9	1
25	64	27	8	1
26	64	27	8	1
27	65	27	7	1
28	68	26	6	0
29	68	26	6	0
30	70	25	5	0
31	71	25	4	0

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

	Clearer (%)	Cloudier (%)
1	47	53
2	48	52
3	47	53
4	48	52
5	48	52
6	47	53
7	47	53
8	47	53
9	48	52
10	48	52
11	49	51
12	48	52
13	49	51
14	50	50
15	49	51
16	50	50
17	49	51
18	50	50
19	49	51
20	49	51
21	48	52
22	48	52
23	48	52
24	47	53
25	46	54
26	45	55
27	44	56
28	43	57
29	43	57
30	42	58
31	42	58

	Rain chance (%)
1	36
2	36
3	36
4	36
5	36
6	35
7	35
8	35
9	35
10	35
11	34
12	34
13	34
14	34
15	34
16	34
17	34
18	34
19	34
20	34
21	35
22	35
23	36
24	36
25	37
26	38
27	38
28	39
29	39
30	39
31	39

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	38	32	25	4
2	39	32	25	4
3	40	32	25	4
4	41	31	24	4
5	42	31	23	4
6	43	31	22	4
7	44	31	21	4
8	45	31	20	4
9	47	31	19	3
10	48	31	18	3
11	49	31	17	3
12	50	31	16	3
13	51	31	15	3
14	52	31	14	3
15	52	31	14	3
16	54	30	13	3
17	55	30	12	3
18	57	29	12	2
19	58	29	11	2
20	58	29	11	2
21	59	29	10	2
22	60	29	10	1
23	62	28	9	1
24	62	28	9	1
25	64	27	8	1
26	64	27	8	1
27	65	27	7	1
28	68	26	6	0
29	68	26	6	0
30	70	25	5	0
31	71	25	4	0