Mongolia in September

Golden larches, clear skies, cold nights; the Gobi is at its most comfortable.

No other month rates higher than September for Mongolia in this guide.

• Ulaanbaatar and the centre · Ulaanbaatar, Terelj, Kharkhorin, Orkhon valleybest weather

  Coldest capital in the world: January averages about −20 °C (−4 °F). Coal and ger-stove smoke make winter air among the worst anywhere Nov–Feb. Summer is 20–28 °C (68–82 °F) by day with afternoon showers in July–August.Coldest capital in the world: January averages about −4 °F (−20 °C). Coal and ger-stove smoke make winter air among the worst anywhere Nov–Feb. Summer is 68–82 °F (20–28 °C) by day with afternoon showers in July–August.

• Gobi · Dalanzadgad, Khongoryn Els, Bayanzag, Yolyn Ambest weather

  Summer days reach 35–40 °C (95–104 °F), nights stay cool; spring (Apr–May) brings wind and dust storms. September is the easy month.Summer days reach 95–104 °F (35–40 °C), nights stay cool; spring (Apr–May) brings wind and dust storms. September is the easy month.

• Khövsgöl and the north · Mörön, Khatgal, Darkhad valleybest weather

  Lake Khövsgöl stays frozen until late May or June; summer nights near freezing at 1,650 m. Ice Festival in early March.

• Western Altai · Ölgii, Khovd, Tavan Bogd, Uvsbest weather

  High mountains with snow possible any month; the Golden Eagle Festival in early October is the last good week before the cold.

• Eastern Mongolia: Eastern steppe · Dornod, Sükhbaatar, Khentiifine

  Short summer, June to early September. July and August are warmest and greenest; nights stay cold. Winter is extreme and not a visitor season.

• Gobi: South Gobi (Dalanzadgad) · Ömnögovi and the dune beltbest weather

  May–June and September are the sweet spots; July–August is hot and busy with domestic tourists. Winter is genuinely cold, not mild.

• Gobi: Northern Gobi edge (Bayanhongor, Sainshand) · Steppe-desert transitionbest weather

  Slightly cooler and greener than the south; dust storms peak in spring.

• Northern Mongolia: Northern Mongolia · Darkhan to Khövsgölfine

  Short summer: June–August are the workable months, July warmest. Lake Khövsgöl sits at 1,645 m and stays cool; winter is far below freezing.

• Western Mongolia: Altai and Bayan-Ölgii · Ölgii, Tavan Bogd, Tsambagaravfine

  Short summer; July–August are the only reliable trekking months. Early October is Eagle Festival weather — cold, with snow possible.

• Western Mongolia: Great Lakes Depression · Hovd, Uvs, Ulaangomfine

  Drier and lower than the Altai; Uvs Lake basin is one of the coldest places in Mongolia in winter.

• Western Mongolia: Zavkhan · Uliastai, Tosontsengelfine

  Khangai side is wetter and greener; July–August for the lakes and dunes.

• Ulaanbaatar16 °C (61 °F) / 3 °C (37 °F), 6 rain days61 °F (16 °C) / 37 °F (3 °C), 6 rain days
• Altai13.6 °C (56 °F) / 1.4 °C (35 °F), 16 rain days56 °F (13.6 °C) / 35 °F (1.4 °C), 16 rain days
• Arvayheer4.5 °C (40 °F) / 16.6 °C (62 °F), 16 rain days40 °F (4.5 °C) / 62 °F (16.6 °C), 16 rain days
• Baganuur17 °C (63 °F) / 1 °C (34 °F), 21 rain days63 °F (17 °C) / 34 °F (1 °C), 21 rain days
• Baruun-Urt19.7 °C (67 °F) / 5.9 °C (43 °F), 22 rain days67 °F (19.7 °C) / 43 °F (5.9 °C), 22 rain days
• Bayanhongor3.3 °C (38 °F) / 16.8 °C (62 °F), 17 rain days38 °F (3.3 °C) / 62 °F (16.8 °C), 17 rain days
• Bulgan17.1 °C (63 °F) / 1.2 °C (34 °F), 28 rain days63 °F (17.1 °C) / 34 °F (1.2 °C), 28 rain days
• Choibalsan20 °C (68 °F) / 6 °C (43 °F), 28 rain days68 °F (20 °C) / 43 °F (6 °C), 28 rain days
• Dalanzadgad8.7 °C (48 °F) / 21.2 °C (70 °F), 15 rain days48 °F (8.7 °C) / 70 °F (21.2 °C), 15 rain days
• Darkhan19.6 °C (67 °F) / 2.9 °C (37 °F), 34 rain days67 °F (19.6 °C) / 37 °F (2.9 °C), 34 rain days
• Erdenet16 °C (61 °F) / 3 °C (37 °F), 7 rain days61 °F (16 °C) / 37 °F (3 °C), 7 rain days
• Hovd18.6 °C (65 °F) / 4.7 °C (40 °F), 10 rain days65 °F (18.6 °C) / 40 °F (4.7 °C), 10 rain days
• Hutag-Ondor17 °C (63 °F) / 5 °C (41 °F), 5 rain days63 °F (17 °C) / 41 °F (5 °C), 5 rain days
• Karakorum16 °C (61 °F) / 3 °C (37 °F), 6 rain days61 °F (16 °C) / 37 °F (3 °C), 6 rain days
• Mandalgovĭ19 °C (66 °F) / 6 °C (43 °F), 8 rain days66 °F (19 °C) / 43 °F (6 °C), 8 rain days
• Mörön17.8 °C (64 °F) / 2.5 °C (37 °F), 21 rain days64 °F (17.8 °C) / 37 °F (2.5 °C), 21 rain days
• Ölgii16 °C (61 °F) / 3 °C (37 °F), 7 rain days61 °F (16 °C) / 37 °F (3 °C), 7 rain days
• Ondorkhaan19.4 °C (67 °F) / 3.3 °C (38 °F), 24 rain days67 °F (19.4 °C) / 38 °F (3.3 °C), 24 rain days
• Sainshand8.7 °C (48 °F) / 22.3 °C (72 °F), 12 rain days48 °F (8.7 °C) / 72 °F (22.3 °C), 12 rain days
• Sühbaatar13 °C (55 °F) / 2 °C (36 °F), 6 rain days55 °F (13 °C) / 36 °F (2 °C), 6 rain days
• Tsagaannuur14 °C (57 °F) / 0 °C (32 °F), 9 rain days57 °F (14 °C) / 32 °F (0 °C), 9 rain days
• Tsetserleg16.5 °C (62 °F) / 2.6 °C (37 °F), 27 rain days62 °F (16.5 °C) / 37 °F (2.6 °C), 27 rain days
• Ulaangom19 °C (66 °F) / 6 °C (43 °F), 7 rain days66 °F (19 °C) / 43 °F (6 °C), 7 rain days
• Uliastai-7 °C (19 °F) / 7.3 °C (45 °F), 7 rain days19 °F (-7 °C) / 45 °F (7.3 °C), 7 rain days
• Zamyn-Üüd16 °C (61 °F) / 5 °C (41 °F), 5 rain days61 °F (16 °C) / 41 °F (5 °C), 5 rain days
• Zuunmod16 °C (61 °F) / 4 °C (39 °F), 4 rain days61 °F (16 °C) / 39 °F (4 °C), 4 rain days

Crowds · Mongolia

Medium

Prices · Mongolia

Medium

Weather, crowds and prices for any two months in Mongolia, side by side.

Nothing unusual for the weather this month.

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Rated best or good this month

• Ulaanbaatar and the centre

  Best weather of the year (Ulaanbaatar, Terelj, Kharkhorin, Orkhon valley)

• Gobi

  Best weather of the year (Dalanzadgad, Khongoryn Els, Bayanzag, Yolyn Am)

• Khövsgöl and the north

  Best weather of the year (Mörön, Khatgal, Darkhad valley)

• Western Altai

  Best weather of the year (Ölgii, Khovd, Tavan Bogd, Uvs)

• Ulaanbaatar

  Clear and cool; good month.

• Altai

  Best months: Jun–Sep

• Arvayheer

  Best months: Jun–Sep

• Baganuur

  Best months: June–September

• Bayanhongor

  Best months: Jun–Sep

• Bulgan

  Best months: Jun–Sep

• Choibalsan

  Best months: Jun–Sep

• Dalanzadgad

  Best months: Jun–Sep