Last updated: August 28, 2025
In May, the average temperature in Ulaan-Ereg, Mongolia hovers around 12°C (55°F), providing a mild climate. However, temperatures can dip to a chilling -7°C (20°F) or soar up to a sizzling 35°C (95°F). During this month, expect about 16 mm (0.6 in) of precipitation over 3 days, with an average humidity level of 52%.
In May in Ulaan-Ereg, the average temperature is 12°C (55°F), with maximums reaching up to 35°C (95°F) and minimums dipping as low as -7°C (20°F). It's advisable to pack a variety of clothing to accommodate the wide temperature range during your travels.
In Ulaan-Ereg in May, the precipitation amount is 16 mm (0.6 in), spread over a duration of 3 days.
In Ulaan-Ereg in May, humidity is 52%. With an average temperature of 12°C (55°F), this humidity feels like a crisp embrace, making it invigorating for traveling as the cool air refreshes you while exploring the sights.
In Ulaan-Ereg in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Ulaan-Ereg.
UV Risk Categories
Weather in Ulaan-Ereg varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Ulaan-Ereg, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -20°C (-4°F) | 2 mm (0.1 inches) | 90% | low |
| February Weather | -16°C (4°F) | 3 mm (0.1 inches) | 80% | moderate |
| March Weather | -3°C (26°F) | 3 mm (0.1 inches) | 64% | moderate |
| April Weather | 5°C (42°F) | 8 mm (0.3 inches) | 59% | high |
| May Weather | 12°C (55°F) | 16 mm (0.6 inches) | 52% | very high |
| June Weather | 19°C (67°F) | 27 mm (1.0 inches) | 53% | very high |
| July Weather | 21°C (71°F) | 56 mm (2.2 inches) | 59% | very high |
| August Weather | 18°C (64°F) | 74 mm (2.9 inches) | 61% | very high |
| September Weather | 12°C (54°F) | 26 mm (1.0 inches) | 67% | high |
| October Weather | 2°C (35°F) | 12 mm (0.5 inches) | 67% | moderate |
| November Weather | -9°C (17°F) | 8 mm (0.3 inches) | 67% | moderate |
| December Weather | -18°C (1°F) | 3 mm (0.1 inches) | 88% | low |