Olgiy, Mongolia experiences a harsh and varied climate throughout the year. Winters are extremely cold, with temperatures often plummeting below -30°C in January and February, but gradually warming up towards March and April. Spring brings moderate temperatures, ranging from around 0°C to 10°C, before summer arrives with warm days reaching up to 27-32°C in June and July. Autumn is similar to spring, with temperatures fluctuating between cool and mild, while winter returns with its biting chill by December.