Jermuk weather in September

In September, Jermuk sees average daytime highs of 17°C and overnight lows near 6°C, with 36 mm of precipitation across 8.7 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 20°C in the first days to 15°C by the end. The sky is clear or mostly clear about 69% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Jermuk's 2nd-clearest and 7th-windiest month. For the whole year in context, see Jermuk's year-round climate.

Daytime high: 17°; 3rd warmest
Overnight low: 6°; 9th coldest
Precipitation: 36 mm; 8.7 wet days
Daylight: 12 h 18 min; 6:44 AM – 6:59 PM
Cloud cover: 31%; 2nd clearest
Wind: 7 km/h; 7th windiest
Solar energy: 5.18 kWh/m²
Travel score: 6.0; out of 10

Jermuk is city or town in Armenia.

Density: 74/km²; people per km²
Founded: 1250

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

← August Jermuk year-round climate October →Best places to visit in September

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 20°C in the first days to 15°C by the end.

A typical September day in Jermuk reaches about 17°C in the afternoon and slips back to 6°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 21°C. Set against its neighbours, September runs about 4°C cooler than August and about 7°C warmer than October.

	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)	20	20	20	19	19	19	19	19	19	18	18	18	18	18	17	17	17	17	17	16	16	16	16	16	15	15	15	15	14	14
Avg low (°C)	8	8	8	8	7	7	7	7	7	7	7	6	6	6	6	6	6	6	5	5	5	5	5	5	4	4	4	4	4	4

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

How September really feels in Jermuk

Once humidity and wind are folded in, September 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

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

Jermuk weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 12th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	-5° / -13°	43	7.3	8.7	9.5	0.0
Feb	-3° / -11°	50	8.8	9.6	10.4	0.0
Mar	1° / -6°	82	14	14	11.7	0.0
Apr	6° / -2°	92	16.4	9.5	13	0.5
May	12° / 3°	95	20.4	2	14.2	2.6
Jun	17° / 7°	70	15.8	0.1	14.8	5.0
Jul	20° / 9°	63	14.3	0	14.5	6.2
Aug	21° / 9°	45	11.5	0	13.6	6.9
Sep	17° / 6°	36	8.7	0.2	12.3	6.0
Oct	11° / 1°	43	10.1	2.5	10.9	2.7
Nov	3° / -6°	43	7.9	7.4	9.8	0.1
Dec	-3° / -12°	41	8.1	9	9.2	0.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 69% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 13%. 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
Clearer (%)	90	90	89	89	90	90	90	90	90	89	89	89	88	88	88	88	88	87	87	87	86	85	84	84	82	82	80	80	79	78
Cloudier (%)	10	10	11	11	10	10	10	10	10	11	11	11	12	12	12	12	12	13	13	13	14	15	16	16	18	18	20	20	21	22

	Clearer (%)	Cloudier (%)
1	90	10
2	90	10
3	89	11
4	89	11
5	90	10
6	90	10
7	90	10
8	90	10
9	90	10
10	89	11
11	89	11
12	89	11
13	88	12
14	88	12
15	88	12
16	88	12
17	88	12
18	87	13
19	87	13
20	87	13
21	86	14
22	85	15
23	84	16
24	84	16
25	82	18
26	82	18
27	80	20
28	80	20
29	79	21
30	78	22

Chance of precipitation in September

Any precipitationSnow

Jermuk gets around 36 mm of rain and snow over 8.7 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 30% and peaks near 33% on the wettest days, and about 0 day brings snow.

	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 (%)	31	30	29	28	28	27	27	27	27	27	27	28	28	28	29	29	29	30	30	30	31	31	32	32	32	33	33	33	33	33
Snow chance (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1	1	1	1	2	2	2	2	2	3

	Rain chance (%)	Snow chance (%)
1	31	0
2	30	0
3	29	0
4	28	0
5	28	0
6	27	0
7	27	0
8	27	0
9	27	0
10	27	0
11	27	0
12	28	0
13	28	0
14	28	1
15	29	1
16	29	1
17	29	1
18	30	1
19	30	1
20	30	1
21	31	1
22	31	1
23	32	1
24	32	1
25	32	2
26	33	2
27	33	2
28	33	2
29	33	2
30	33	3

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 100% 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 (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 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)	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6
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

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

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over September. Sunrise moves from 6:29 AM to 6:58 AM, and sunset from 7:25 PM to 6:36 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)	12.9	12.9	12.8	12.8	12.7	12.7	12.7	12.6	12.6	12.5	12.5	12.4	12.4	12.3	12.3	12.3	12.2	12.2	12.1	12.1	12.0	12.0	11.9	11.9	11.9	11.8	11.8	11.7	11.7	11.6
Sunrise (AM)	6:29	6:30	6:31	6:32	6:33	6:34	6:35	6:36	6:37	6:38	6:39	6:40	6:41	6:42	6:43	6:44	6:45	6:46	6:47	6:48	6:49	6:50	6:51	6:52	6:53	6:54	6:55	6:56	6:57	6:58
Sunset (PM)	7:25	7:23	7:21	7:20	7:18	7:16	7:15	7:13	7:11	7:10	7:08	7:06	7:05	7:03	7:01	6:59	6:58	6:56	6:54	6:53	6:51	6:49	6:47	6:46	6:44	6:42	6:41	6:39	6:37	6:36

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.9	6:29	7:25
2	12.9	6:30	7:23
3	12.8	6:31	7:21
4	12.8	6:32	7:20
5	12.7	6:33	7:18
6	12.7	6:34	7:16
7	12.7	6:35	7:15
8	12.6	6:36	7:13
9	12.6	6:37	7:11
10	12.5	6:38	7:10
11	12.5	6:39	7:08
12	12.4	6:40	7:06
13	12.4	6:41	7:05
14	12.3	6:42	7:03
15	12.3	6:43	7:01
16	12.3	6:44	6:59
17	12.2	6:45	6:58
18	12.2	6:46	6:56
19	12.1	6:47	6:54
20	12.1	6:48	6:53
21	12.0	6:49	6:51
22	12.0	6:50	6:49
23	11.9	6:51	6:47
24	11.9	6:52	6:46
25	11.9	6:53	6:44
26	11.8	6:54	6:42
27	11.8	6:55	6:41
28	11.7	6:56	6:39
29	11.7	6:57	6:37
30	11.6	6:58	6:36

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.18 kWh/m².

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 6.96 kWh/m² in June across the year — September's 5.18 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
Solar energy (kWh/m²)	5.8	5.8	5.7	5.7	5.7	5.6	5.6	5.5	5.5	5.4	5.4	5.3	5.3	5.3	5.2	5.2	5.1	5.1	5.0	5.0	4.9	4.9	4.8	4.8	4.8	4.7	4.7	4.6	4.6	4.5
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	5.8	Bright
2	5.8	Bright
3	5.7	Bright
4	5.7	Bright
5	5.7	Bright
6	5.6	Bright
7	5.6	Bright
8	5.5	Bright
9	5.5	Bright
10	5.4	Bright
11	5.4	Bright
12	5.3	Bright
13	5.3	Bright
14	5.3	Bright
15	5.2	Bright
16	5.2	Bright
17	5.1	Bright
18	5.1	Bright
19	5.0	Bright
20	5.0	Bright
21	4.9	Bright
22	4.9	Bright
23	4.8	Bright
24	4.8	Bright
25	4.8	Bright
26	4.7	Bright
27	4.7	Bright
28	4.6	Bright
29	4.6	Bright
30	4.5	Bright

Planning a trip in September

Is September a good time to visit Jermuk?

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

6.0

Sightseeing

3rd-best month of the year

1.7

Beach & pool

3rd-best month of the year

September is a reasonable time to visit Jermuk for sightseeing.

What to pack for Jermuk in September

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

In September, Jermuk sees daytime highs around 17°C and nights near 6°C. Worth packing: a warm layer, rain gear and sun protection. About 9 days see rain.

a warm layerrain gearsun protection

UV index in Jermuk in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Jermuk peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	3	4	5	6	9	11	11	10	7	5	3	2
Level	Moderate	Moderate	Moderate	High	Very high	Extreme	Extreme	Extreme	Very high	Moderate	Moderate	Moderate

	UV index (midday)	Level
Jan	3	Moderate
Feb	4	Moderate
Mar	5	Moderate
Apr	6	High
May	9	Very high
Jun	11	Extreme
Jul	11	Extreme
Aug	10	Extreme
Sep	7	Very high
Oct	5	Moderate
Nov	3	Moderate
Dec	2	Moderate

Air quality in Jermuk in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

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

Modeled monthly averages (CAMS reanalysis, 2015–2024).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	10	13	17	20	22	19	18	16	16	13	10	10
Level	Good	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good

	PM2.5 (µg/m³)	Level
Jan	10	Good
Feb	13	Moderate
Mar	17	Moderate
Apr	20	Moderate
May	22	Moderate
Jun	19	Moderate
Jul	18	Moderate
Aug	16	Moderate
Sep	16	Moderate
Oct	13	Moderate
Nov	10	Good
Dec	10	Good

Location & terrain

Where is Jermuk?

Jermuk sits at 39.8°N, 45.7°E, 0 m above sea level, in Armenia. The nearest listed city is Goris, 68 km away.

Topography around Jermuk

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

Within 3 km, the terrain around Jermuk has significant variations in elevation — a maximum elevation change of 536 m around an average of 2,237 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,058 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,181 m.

The land around Jermuk is covered by grassland (78%) within 3 km, grassland (90%) within 16 km, and grassland (75%) within 80 km.

3 km

536 m

grassland 78%

16 km

2,058 m

grassland 90%

80 km

3,181 m

grassland 75%

treesgrasslandcroplandartificial surfacesbare terrainwatermoss and lichen

← August Jermuk year-round climate October →Best places to visit in September

September weather nearby: Goris 68 km · Nakhchivan 74 km · Gavar 74 km · Poldasht 75 km · Nehram 82 km · Ararat 83 km · Shusha 93 km · Kapan 94 km

Armenia travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / F; 230 V · 50 Hz
Prices: ≈ 38% of US; price level, 2025
GDP per capita: $9,474; 2025
Happiness: 5.6 / 10; World Happiness, 2025
Safe drinking water: 82%; of population, 2024
Homicide rate: 2.2; per 100k, 2023
Road deaths: 20; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Moderate; EF EPI 515
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 Jermuk (39.8395°, 45.6711°, elevation 0 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).

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

	Clearer (%)	Cloudier (%)
1	90	10
2	90	10
3	89	11
4	89	11
5	90	10
6	90	10
7	90	10
8	90	10
9	90	10
10	89	11
11	89	11
12	89	11
13	88	12
14	88	12
15	88	12
16	88	12
17	88	12
18	87	13
19	87	13
20	87	13
21	86	14
22	85	15
23	84	16
24	84	16
25	82	18
26	82	18
27	80	20
28	80	20
29	79	21
30	78	22

	Rain chance (%)	Snow chance (%)
1	31	0
2	30	0
3	29	0
4	28	0
5	28	0
6	27	0
7	27	0
8	27	0
9	27	0
10	27	0
11	27	0
12	28	0
13	28	0
14	28	1
15	29	1
16	29	1
17	29	1
18	30	1
19	30	1
20	30	1
21	31	1
22	31	1
23	32	1
24	32	1
25	32	2
26	33	2
27	33	2
28	33	2
29	33	2
30	33	3

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

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

	Clearer (%)	Cloudier (%)
1	90	10
2	90	10
3	89	11
4	89	11
5	90	10
6	90	10
7	90	10
8	90	10
9	90	10
10	89	11
11	89	11
12	89	11
13	88	12
14	88	12
15	88	12
16	88	12
17	88	12
18	87	13
19	87	13
20	87	13
21	86	14
22	85	15
23	84	16
24	84	16
25	82	18
26	82	18
27	80	20
28	80	20
29	79	21
30	78	22

	Rain chance (%)	Snow chance (%)
1	31	0
2	30	0
3	29	0
4	28	0
5	28	0
6	27	0
7	27	0
8	27	0
9	27	0
10	27	0
11	27	0
12	28	0
13	28	0
14	28	1
15	29	1
16	29	1
17	29	1
18	30	1
19	30	1
20	30	1
21	31	1
22	31	1
23	32	1
24	32	1
25	32	2
26	33	2
27	33	2
28	33	2
29	33	2
30	33	3

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

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

	Clearer (%)	Cloudier (%)
1	90	10
2	90	10
3	89	11
4	89	11
5	90	10
6	90	10
7	90	10
8	90	10
9	90	10
10	89	11
11	89	11
12	89	11
13	88	12
14	88	12
15	88	12
16	88	12
17	88	12
18	87	13
19	87	13
20	87	13
21	86	14
22	85	15
23	84	16
24	84	16
25	82	18
26	82	18
27	80	20
28	80	20
29	79	21
30	78	22

	Rain chance (%)	Snow chance (%)
1	31	0
2	30	0
3	29	0
4	28	0
5	28	0
6	27	0
7	27	0
8	27	0
9	27	0
10	27	0
11	27	0
12	28	0
13	28	0
14	28	1
15	29	1
16	29	1
17	29	1
18	30	1
19	30	1
20	30	1
21	31	1
22	31	1
23	32	1
24	32	1
25	32	2
26	33	2
27	33	2
28	33	2
29	33	2
30	33	3

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100