Average Weather at Shahjalal International Airport Bangladesh
At Shahjalal International Airport, the wet season is hot, oppressive, and mostly cloudy and the dry season is warm and mostly clear. Over the course of the year, the temperature typically varies from 58°F to 93°F and is rarely below 53°F or above 99°F.
Based on the beach/pool score, the best times of year to visit Shahjalal International Airport for hot-weather activities are from late February to early April and from late October to late November.
The hot season lasts for 3.8 months, from March 14 to July 9, with an average daily high temperature above 89°F. The hottest day of the year is April 16, with an average high of 93°F and low of 76°F.
The cool season lasts for 1.6 months, from December 13 to February 2, with an average daily high temperature below 80°F. The coldest day of the year is January 12, with an average low of 58°F and high of 77°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
At Shahjalal International Airport, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.
The clearer part of the year at Shahjalal International Airport begins around October 10 and lasts for 7.4 months, ending around May 22. On February 17, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 88% of the time, and overcast or mostly cloudy 12% of the time.
The cloudier part of the year begins around May 22 and lasts for 4.6 months, ending around October 10. On July 30, the cloudiest day of the year, the sky is overcast or mostly cloudy 90% of the time, and clear, mostly clear, or partly cloudy 10% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Shahjalal International Airport varies very significantly throughout the year.
The wetter season lasts 5.9 months, from April 17 to October 12, with a greater than 38% chance of a given day being a wet day. The chance of a wet day peaks at 73% on July 31.
The drier season lasts 6.1 months, from October 12 to April 17. The smallest chance of a wet day is 2% on December 11.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 73% on July 31.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Shahjalal International Airport experiences extreme seasonal variation in monthly rainfall.
The rainy period of the year lasts for 9.5 months, from February 13 to November 29, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around July 3, with an average total accumulation of 9.7 inches.
The rainless period of the year lasts for 2.5 months, from November 29 to February 13. The least rain falls around January 8, with an average total accumulation of 0.2 inches.
Average Monthly Rainfall
The length of the day at Shahjalal International Airport varies over the course of the year. In 2017, the shortest day is December 21, with 10 hours, 40 minutes of daylight; the longest day is June 21, with 13 hours, 37 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:10 AM on June 9, and the latest sunrise is 1 hour, 33 minutes later at 6:43 AM on January 14. The earliest sunset is at 5:10 PM on November 28, and the latest sunset is 1 hour, 39 minutes later at 6:49 PM on July 3.
Daylight saving time (DST) is not observed at Shahjalal International Airport during 2017.
Sunrise & Sunset with Twilight
Shahjalal International Airport experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 8.7 months, from March 5 to November 27, during which time the comfort level is muggy, oppressive, or miserable at least 26% of the time. The muggiest day of the year is August 5, with muggy conditions 100% of the time.
The least muggy day of the year is January 9, with muggy conditions 1% of the time.
Humidity Comfort Levels
The average hourly wind speed at Shahjalal International Airport experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 5.3 months, from March 29 to September 7, with average wind speeds of more than 7.3 miles per hour. The windiest day of the year is July 7, with an average hourly wind speed of 10.1 miles per hour.
The calmer time of year lasts for 6.7 months, from September 7 to March 29. The calmest day of the year is November 25, with an average hourly wind speed of 4.4 miles per hour.
Average Wind Speed
The predominant average hourly wind direction at Shahjalal International Airport varies throughout the year.
The wind is most often from the west for 3.7 weeks, from February 19 to March 17, with a peak percentage of 41% on March 7. The wind is most often from the south for 6.8 months, from March 17 to October 10, with a peak percentage of 86% on July 9. The wind is most often from the north for 4.3 months, from October 10 to February 19, with a peak percentage of 62% on January 1.
Shahjalal International Airport is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average water temperature experiences some seasonal variation over the course of the year.
The time of year with warmer water lasts for 5.2 months, from May 12 to October 19, with an average temperature above 80°F. The day of the year with the warmest water is June 26, with an average temperature of 83°F.
The time of year with cooler water lasts for 2.8 months, from December 18 to March 10, with an average temperature below 71°F. The day of the year with the coolest water is January 27, with an average temperature of 67°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is at Shahjalal International Airport throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Shahjalal International Airport for general outdoor tourist activities is from mid November to early March, with a peak score in the first week of December.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best times of year to visit Shahjalal International Airport for hot-weather activities are from late February to early April and from late October to late November, with a peak score in the first week of November.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
Temperatures at Shahjalal International Airport are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.
Time Spent in Various Temperature Bands and the Growing Season
Growing Degree Days
The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year.
The brighter period of the year lasts for 2.2 months, from March 6 to May 13, with an average daily incident shortwave energy per square meter above 6.0 kWh. The brightest day of the year is April 16, with an average of 6.5 kWh.
The darker period of the year lasts for 1.7 months, from August 22 to October 11, with an average daily incident shortwave energy per square meter below 4.6 kWh. The darkest day of the year is September 23, with an average of 4.2 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Shahjalal International Airport are 23.843 deg latitude, 90.398 deg longitude, and 36 ft elevation.
The topography within 2 miles of Shahjalal International Airport contains only modest variations in elevation, with a maximum elevation change of 118 feet and an average elevation above sea level of 36 feet. Within 10 miles also contains only modest variations in elevation (174 feet). Within 50 miles also contains only modest variations in elevation (285 feet).
The area within 2 miles of Shahjalal International Airport is covered by cropland (50%) and grassland (50%), within 10 miles by grassland (47%) and cropland (47%), and within 50 miles by grassland (41%) and cropland (40%).
This report illustrates the typical weather at Shahjalal International Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
Shahjalal International Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.
In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.
In this case, the only station close and reliable enough to use as a fallback is Agartala Airport.
Time zones for aiports and weather stations are provided by AskGeo.com .