Erdenet weather in September

In September, Erdenet sees average daytime highs of 16°C and overnight lows near 4°C, with 38 mm of precipitation across 7.7 wet days and about 12.4 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 19°C in the first days to 12°C by the end. The sky is clear or mostly clear about 41% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Erdenet's 6th-clearest and 5th-windiest month. For the whole year in context, see Erdenet's year-round climate.

Daytime high: 16°; 5th warmest
Overnight low: 4°; 9th coldest
Precipitation: 38 mm; 7.7 wet days
Daylight: 12 h 24 min; 6:47 AM – 7:09 PM
Cloud cover: 51%; 6th clearest
Wind: 9 km/h; 5th windiest
Solar energy: 4.26 kWh/m²
Travel score: 5.2; out of 10

Erdenet is capital city of Orkhon Province, Mongolia.

Density: 470/km²; people per km²
Founded: 1975

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

← August Erdenet 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 19°C in the first days to 12°C by the end.

A typical September day in Erdenet reaches about 16°C in the afternoon and slips back to 4°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 22°C. Set against its neighbours, September runs about 5°C cooler than August and about 9°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)	19	19	19	18	18	18	18	17	17	17	17	17	16	16	16	16	16	15	15	15	15	14	14	14	13	13	13	13	12	12
Avg low (°C)	8	8	7	7	7	7	6	6	6	6	5	5	5	4	4	4	4	3	3	3	3	2	2	2	1	1	1	0	0	0

	Avg high (°C)	Avg low (°C)
1	19	8
2	19	8
3	19	7
4	18	7
5	18	7
6	18	7
7	18	6
8	17	6
9	17	6
10	17	6
11	17	5
12	17	5
13	16	5
14	16	4
15	16	4
16	16	4
17	16	4
18	15	3
19	15	3
20	15	3
21	15	3
22	14	2
23	14	2
24	14	2
25	13	1
26	13	1
27	13	1
28	13	0
29	12	0
30	12	0

How September really feels in Erdenet

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 10 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

The story in September is cold — wind chill drags the overnight "feels like" below the raw low.

Erdenet weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	-14° / -24°	2	0.4	0.9	8.5	0.0
Feb	-9° / -20°	3	0.8	1.4	9.8	0.0
Mar	1° / -12°	8	2.4	3	11.6	0.0
Apr	10° / -3°	21	5.5	4.1	13.4	2.4
May	17° / 4°	35	7.8	2.7	15	5.5
Jun	22° / 10°	63	11.2	0.1	15.9	6.3
Jul	23° / 13°	91	13.5	0	15.6	6.2
Aug	21° / 11°	86	12.1	0	14.2	6.2
Sep	16° / 4°	38	7.7	1.5	12.4	5.2
Oct	7° / -5°	17	4.3	3.7	10.5	1.3
Nov	-4° / -14°	8	2.6	3.2	8.9	0.0
Dec	-12° / -21°	3	1.2	1.7	8.1	0.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% 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 41%. Skies tend to open up 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 (%)	53	53	54	55	55	56	57	57	58	58	59	60	60	61	61	61	61	61	61	60	60	61	61	60	60	61	61	61	61	62
Cloudier (%)	47	47	46	45	45	44	43	43	42	42	41	40	40	39	39	39	39	39	39	40	40	39	39	40	40	39	39	39	39	38

	Clearer (%)	Cloudier (%)
1	53	47
2	53	47
3	54	46
4	55	45
5	55	45
6	56	44
7	57	43
8	57	43
9	58	42
10	58	42
11	59	41
12	60	40
13	60	40
14	61	39
15	61	39
16	61	39
17	61	39
18	61	39
19	61	39
20	60	40
21	60	40
22	61	39
23	61	39
24	60	40
25	60	40
26	61	39
27	61	39
28	61	39
29	61	39
30	62	38

Chance of precipitation in September

Any precipitationSnow

Erdenet gets around 38 mm of rain and snow over 7.7 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 25% and peaks near 32% on the wettest days, and about 2 days bring snow. The odds ease toward the end of the month.

	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 (%)	32	31	30	30	29	29	28	28	27	27	26	26	25	25	24	24	24	24	24	24	23	23	23	22	22	21	21	21	20	20
Snow chance (%)	1	1	1	1	1	2	2	2	2	3	3	3	3	4	4	5	5	6	6	7	7	8	8	8	9	9	10	10	10	10

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

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 (%)	99	99	99	99	99	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
Comfortable (%)	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	99	1
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 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)	8	8	8	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9
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	8	calm
2	8	calm
3	8	calm
4	9	calm
5	9	calm
6	9	calm
7	9	calm
8	9	calm
9	9	calm
10	9	calm
11	9	calm
12	9	calm
13	9	calm
14	9	calm
15	9	calm
16	9	calm
17	9	calm
18	9	calm
19	9	calm
20	9	calm
21	9	calm
22	9	calm
23	9	calm
24	9	calm
25	9	calm
26	9	calm
27	9	calm
28	9	calm
29	9	calm
30	9	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 18 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 108 minutes over September. Sunrise moves from 6:25 AM to 7:08 AM, and sunset from 7:42 PM to 6:38 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)	13.3	13.2	13.2	13.1	13.0	13.0	12.9	12.8	12.8	12.7	12.7	12.6	12.5	12.5	12.4	12.4	12.3	12.2	12.2	12.1	12.0	12.0	11.9	11.9	11.8	11.7	11.7	11.6	11.6	11.5
Sunrise (AM)	6:25	6:27	6:28	6:30	6:31	6:33	6:34	6:35	6:37	6:38	6:40	6:41	6:43	6:44	6:46	6:47	6:49	6:50	6:52	6:53	6:55	6:56	6:58	6:59	7:01	7:02	7:04	7:05	7:07	7:08
Sunset (PM)	7:42	7:39	7:37	7:35	7:33	7:31	7:29	7:26	7:24	7:22	7:20	7:18	7:15	7:13	7:11	7:09	7:06	7:04	7:02	7:00	6:58	6:55	6:53	6:51	6:49	6:46	6:44	6:42	6:40	6:38

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	13.3	6:25	7:42
2	13.2	6:27	7:39
3	13.2	6:28	7:37
4	13.1	6:30	7:35
5	13.0	6:31	7:33
6	13.0	6:33	7:31
7	12.9	6:34	7:29
8	12.8	6:35	7:26
9	12.8	6:37	7:24
10	12.7	6:38	7:22
11	12.7	6:40	7:20
12	12.6	6:41	7:18
13	12.5	6:43	7:15
14	12.5	6:44	7:13
15	12.4	6:46	7:11
16	12.4	6:47	7:09
17	12.3	6:49	7:06
18	12.2	6:50	7:04
19	12.2	6:52	7:02
20	12.1	6:53	7:00
21	12.0	6:55	6:58
22	12.0	6:56	6:55
23	11.9	6:58	6:53
24	11.9	6:59	6:51
25	11.8	7:01	6:49
26	11.7	7:02	6:46
27	11.7	7:04	6:44
28	11.6	7:05	6:42
29	11.6	7:07	6:40
30	11.5	7:08	6:38

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.26 kWh/m².

For context, solar energy here swings from a low near 1.38 kWh/m² to a high of 6.45 kWh/m² in June across the year — September's 4.26 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)	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	4.3	4.3	4.3	4.2	4.2	4.1	4.1	4.1	4.0	4.0	3.9	3.9	3.8	3.8	3.7	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	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

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

Planning a trip in September

Is September a good time to visit Erdenet?

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

5.2

Sightseeing

5th-best month of the year

0.9

Beach & pool

5th-best month of the year

September is a reasonable time to visit Erdenet for sightseeing.

What to pack for Erdenet in September

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

In September, Erdenet sees daytime highs around 16°C and nights near 4°C. Worth packing: a warm layer. About 8 days see rain.

a warm layer

UV index in Erdenet in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Erdenet peaks around July 15 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	2	3	6	6	7	8	7	4	2	1	1
Level	Low	Low	Moderate	High	High	High	Very high	High	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	2	Low
Mar	3	Moderate
Apr	6	High
May	6	High
Jun	7	High
Jul	8	Very high
Aug	7	High
Sep	4	Moderate
Oct	2	Moderate
Nov	1	Low
Dec	1	Low

Location & terrain

Where is Erdenet?

Erdenet sits at 49.0°N, 104.1°E, 1,307 m above sea level, in Mongolia. The nearest listed city is Bulgan, 47 km away.

Topography around Erdenet

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

Within 3 km, the terrain around Erdenet has significant variations in elevation — a maximum elevation change of 319 m around an average of 1,356 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 653 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,364 m.

The land around Erdenet is covered by grassland (73%) within 3 km, grassland (75%) within 16 km, and grassland (69%) and trees (28%) within 80 km.

3 km

319 m

grassland 73%

16 km

653 m

grassland 75%

80 km

1,364 m

grassland 69%

treesgrasslandcroplandartificial surfacesbare terrainwater

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

September weather nearby: Bulgan 47 km · Darhan 143 km · Dzüünharaa 175 km · Sühbaatar 203 km · Kyakhta 225 km · Ulaanbaatar 241 km · Zuunmod 258 km · Dzuunmod 258 km

Mongolia travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type C / E / F; 220 V · 50 Hz
Prices: ≈ 34% of US; price level, 2025
GDP per capita: $7,108; 2025
Happiness: 5.9 / 10; World Happiness, 2025
Safe drinking water: 43%; of population, 2024
Homicide rate: 5.9; per 100k, 2023
Road deaths: 21; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Very low; EF EPI 447
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 Erdenet (49.0333°, 104.0833°, elevation 1,307 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	19	8
2	19	8
3	19	7
4	18	7
5	18	7
6	18	7
7	18	6
8	17	6
9	17	6
10	17	6
11	17	5
12	17	5
13	16	5
14	16	4
15	16	4
16	16	4
17	16	4
18	15	3
19	15	3
20	15	3
21	15	3
22	14	2
23	14	2
24	14	2
25	13	1
26	13	1
27	13	1
28	13	0
29	12	0
30	12	0

	Clearer (%)	Cloudier (%)
1	53	47
2	53	47
3	54	46
4	55	45
5	55	45
6	56	44
7	57	43
8	57	43
9	58	42
10	58	42
11	59	41
12	60	40
13	60	40
14	61	39
15	61	39
16	61	39
17	61	39
18	61	39
19	61	39
20	60	40
21	60	40
22	61	39
23	61	39
24	60	40
25	60	40
26	61	39
27	61	39
28	61	39
29	61	39
30	62	38

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

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	99	1
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0

	Avg high (°C)	Avg low (°C)
1	19	8
2	19	8
3	19	7
4	18	7
5	18	7
6	18	7
7	18	6
8	17	6
9	17	6
10	17	6
11	17	5
12	17	5
13	16	5
14	16	4
15	16	4
16	16	4
17	16	4
18	15	3
19	15	3
20	15	3
21	15	3
22	14	2
23	14	2
24	14	2
25	13	1
26	13	1
27	13	1
28	13	0
29	12	0
30	12	0

	Clearer (%)	Cloudier (%)
1	53	47
2	53	47
3	54	46
4	55	45
5	55	45
6	56	44
7	57	43
8	57	43
9	58	42
10	58	42
11	59	41
12	60	40
13	60	40
14	61	39
15	61	39
16	61	39
17	61	39
18	61	39
19	61	39
20	60	40
21	60	40
22	61	39
23	61	39
24	60	40
25	60	40
26	61	39
27	61	39
28	61	39
29	61	39
30	62	38

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

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	99	1
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0

	Avg high (°C)	Avg low (°C)
1	19	8
2	19	8
3	19	7
4	18	7
5	18	7
6	18	7
7	18	6
8	17	6
9	17	6
10	17	6
11	17	5
12	17	5
13	16	5
14	16	4
15	16	4
16	16	4
17	16	4
18	15	3
19	15	3
20	15	3
21	15	3
22	14	2
23	14	2
24	14	2
25	13	1
26	13	1
27	13	1
28	13	0
29	12	0
30	12	0

	Clearer (%)	Cloudier (%)
1	53	47
2	53	47
3	54	46
4	55	45
5	55	45
6	56	44
7	57	43
8	57	43
9	58	42
10	58	42
11	59	41
12	60	40
13	60	40
14	61	39
15	61	39
16	61	39
17	61	39
18	61	39
19	61	39
20	60	40
21	60	40
22	61	39
23	61	39
24	60	40
25	60	40
26	61	39
27	61	39
28	61	39
29	61	39
30	62	38

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

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	99	1
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0