Weather in Trashigang

To ensure your journey to Trashigang is as comfortable as possible, it is important to learn about the climatic conditions in advance. This section presents up-to-date reports and forecasts that will help you properly prepare for your trip.

The climate in the city of Trashigang can be characterised as temperate mountain, without extreme temperature fluctuations. Thanks to its location in the eastern part of Bhutan, the weather here is quite mild: even in the coldest months, the thermometer rarely drops below zero, and in summer there is no exhausting heat, making a stay here comfortable for those who wish to escape sweltering temperatures.

The influence of monsoons is clearly traceable throughout the year. The summer period, from June to August, is the warmest time of the year with average temperatures around +17...+18°C, but simultaneously the wettest. During these months, the number of rainy days is at its maximum, so travellers should be prepared for frequent precipitation and high humidity.

Winter, on the contrary, is distinguished by dryness and coolness. From November to February, very little precipitation falls, and the average temperature hovers around +5...+7°C. Spring and autumn represent pleasant transitional periods when the air gradually warms up, and the amount of rain has not yet reached its summer peak or has already begun to decline, creating favourable conditions for exploring the region.

The climate in the city of Trashigang is distinguished by pronounced seasonality, offering travellers diverse weather conditions depending on the time of year. The coldest period is winter: in January, the average temperature is only about +5.5°C. At this time, nights can be quite chilly, with the thermometer dropping almost to zero (+0.6°C); however, during the day the air often warms up to +10...+11°C, making walks quite comfortable provided you have warm clothing.

Summer months, conversely, bring mild and pleasant warmth to the region without extreme heat. The warmest time usually falls in July and August, when daytime maximums reach the +20...+21°C mark. During this period, night temperatures also remain high, staying at the level of +15°C, which creates a very comfortable atmosphere. However, it is worth remembering that summer here is not only warm but also humid, which may affect the perceived temperature.

A feature of the local climate is noticeable daily temperature fluctuations, which are most clearly manifested in the transitional seasons — spring and autumn. For example, in March and April, the difference between night and day readings can be about 10 degrees: from morning coolness of +4...+7°C, the air quickly warms up to +14...+16°C by noon. Travellers are recommended to consider this factor and dress in layers to easily adapt to weather changes throughout the day.

The pattern of precipitation in the city of Trashigang has a clearly pronounced seasonality. Nature gifts this region the greatest amount of moisture during the summer period, while late autumn and early winter remain relatively dry. Travellers should take into account that even in the off-season, the probability of precipitation remains, but its intensity varies significantly.

The wettest time of the year is summer, especially July and August. During these months, statistics record the maximum frequency of precipitation — up to 31 days with rain, which means a high probability of overcast weather daily. However, despite the frequency, the average volume of precipitation (about 21–23 mm) indicates that this is more likely frequent drizzle or short-term rains rather than prolonged tropical downpours.

The most comfortable and dry period falls on November and December. At this time, only about 1 mm of precipitation falls, and the number of wet days decreases to a minimum (8–9 days). In winter, especially in January, when night temperatures drop almost to zero, frost or light snow is possible, but heavy snowfalls are not the norm for this period.

When planning a trip to Trashigang, it is important to remember the changeable mountain climate of this region. A universal rule for any season is the principle of layering in clothing. Even in the warmest summer months, the temperature rarely exceeds +20°C, so along with light items, be sure to take fleece jackets, sweaters, and a windbreaker. This will allow you to regulate heat exchange throughout the day, removing or adding layers as necessary.

Special attention should be paid to protection from moisture. According to statistics, from spring to early autumn, a large number of rainy days are observed here, so a high-quality waterproof raincoat, a membrane jacket, or a sturdy umbrella will become your main companions. If you are planning a trip in winter, when the temperature at night and in the morning drops almost to zero, a warm jacket, hat, scarf, and gloves should be in your suitcase so that walks around the city remain comfortable.

Since the city is located on rugged terrain, comfortable footwear is the key to a successful journey. It is best to choose broken-in trekking boots or sneakers with non-slip soles, which are suitable for long walks on slopes. Also, do not forget sunscreen and sunglasses: the mountain sun in Bhutan can be very active even in cool or cloudy weather.