Last updated: August 28, 2025
In October, the average temperature in Arvayheer, Mongolia is a brisk 1°C (34°F). Be prepared for a wide range in temperatures; the minimum can dip to a chilly -13°C (9°F), while the maximum can reach a comfortable 22°C (72°F). This month sees a modest precipitation total of 9 mm (0.4 in), typically spread over just 1 day, and the average humidity hovers around 65%, adding to the cool atmosphere.
In October in Arvayheer, the average temperature is 1°C (34°F). Maximum temperatures can reach 22°C (72°F), while minimums can drop as low as -13°C (9°F). Travelers should be prepared for a wide range of temperatures during this time of year.
In Arvayheer in October, the precipitation amount is 9 mm (0.4 in) over the course of 1 day.
In Arvayheer in October, humidity is 65%. With an average temperature of 1°C (34°F), this humidity feels like a biting chill that seeps into your bones, making every step outside a struggle against the cold, damp air—perfect for cozy indoor activities, but challenging for outdoor adventures.
In Arvayheer in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Arvayheer.
UV Risk Categories
Weather in Arvayheer varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Arvayheer, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -16°C (3°F) | 2 mm (0.1 inches) | 89% | low |
| February Weather | -13°C (8°F) | 7 mm (0.3 inches) | 78% | moderate |
| March Weather | -4°C (25°F) | 12 mm (0.5 inches) | 66% | moderate |
| April Weather | 3°C (38°F) | 17 mm (0.7 inches) | 64% | very high |
| May Weather | 10°C (50°F) | 17 mm (0.7 inches) | 52% | very high |
| June Weather | 16°C (61°F) | 24 mm (0.9 inches) | 59% | very high |
| July Weather | 18°C (65°F) | 63 mm (2.5 inches) | 63% | very high |
| August Weather | 15°C (60°F) | 62 mm (2.5 inches) | 62% | very high |
| September Weather | 10°C (51°F) | 22 mm (0.9 inches) | 65% | high |
| October Weather | 1°C (34°F) | 9 mm (0.4 inches) | 65% | moderate |
| November Weather | -7°C (19°F) | 5 mm (0.2 inches) | 69% | moderate |
| December Weather | -15°C (5°F) | 4 mm (0.2 inches) | 86% | low |