Country Overview For Bhutan
The climate in Bhutan is typically varies; tropical in southern plains; cool winters and hot summers in central valleys; severe winters and cool summers in Himalayas. The terrain: mostly mountainous with some fertile valleys and savanna. For Thimphu in January the daily average maximum temperatures is 1°C with the average minimum -17°C, while in June the average maximum is 12°C with a minimum of 3°C. The wettest month for Thimphu is August with an average of 106.2mm of precipitation falling while the driest month is December with 2.2mm falling.
HISTORICAL MONTHLY AVERAGES FOR SEPTEMBER
The information presented below gives detailed historical monthly average weather conditions along with exceptional weather occurrences. To maintain relevance to current weather trends the displayed information has been calculated using data collected over the past two decades. The climate profile is taken from closest available data source to Thimphu.
Throughout the month of September daytime temperatures will generally reach highs of around 12°C that's about 53°F. At night the average minimum temperature drops down to around 2°C, that's 36°F.
In recent times the highest recorded temperature in September has been 17°C that's 63°F, with the lowest recorded temperature -6°C, about 22°F.
The average daily relative humidity for September is around 79%.
The Heat Index is a measure of how hot it feels when relative humidity is added to actual air temperature. From this a comfort level is calculated providing categories on how heat conditions might adversely affect someone.
Comfort Levels: Given average maximum temperatures and humidity levels generally you should not anticipate any discomfort from heat (see heat index for more information).
The average monthly amount of precipitation has been recorded at around 61 mm, that's 2 inches. Throughout the month you can expect to see rain or drizzle falling on 21 days of the month, with snow falling on 1 days.
Estimated Hours of Sunshine per Day
We calculate sunshine hours per day using our past forecast data. For September expect the sun to shine for an average of 7 hours per day. This represents the average number of hours in the daytime that the sun is visible and not obscured by cloud e.g. the average number of hours the sun is actually out and shining. Note we calculate hours of sunshine per day using our past forecast data, not observation data, thus it is an estimate and not actual.
The average daily wind speed in September has been around 11 km/h, that’s the equivalent to about 7 mph, or 6 knots. In recent years the maximum sustained wind speed has reached 57 km/h, that’s the equivalent of around 36 mph, or 31 knots.
On average the month of September is not affected by foggy conditions.
YEARLY TRENDS: WEATHER AVERAGES & EXTREMES
The following charts show yearly weather trends with information on monthly weather averages and extremes.
The chart below plots the average high and low temperature for each month of the year. It also shows the maximum and minimum recorded temperatures.
The chart below plots the average monthly precipitation amount.
The chart below plots the average number of days in any month that you can expect to see rain falling.
The chart below plots the average number of days in any month that you can expect to see snow falling.
The chart below plots the average daily wind speed you can expect for any month. It also shows the maximum recorded sustained wind speed for each month.