WeatherJourney.com

Mymensingh weather by month: averages, rainfall & climate trends

Mymensingh has well-marked seasons, with 10.3°C between its warmest and coolest monthly means. Rainfall is strongly seasonal: the bulk of the year's rain falls between April and September. Mymensingh weather by month: average temperatures, rainfall, extremes and how the climate has changed since 1940.

Today vs average

+1.7°Chigh above average

32° / 23°Today
30° / 22°Average
see today in detail →

How it's changed

+1.0°Caverage temperature, 2016–2025 vs 1940–1949average temperature vs 1940–49220days above 30°C a year now (2016–2025) · 167 in the 1940sdays above 30°C · 167 in the 1940s+1.0°C vs the 1940s · see how it's changed →
Weather by montha typical year, averaged over the full recordJanuary, rain 11 mmhigh 25°low 12°February, rain 24 mmhigh 28°low 14°March, rain 75 mmhigh 31°low 19°April, rain 244 mmhigh 32°low 22°May, rain 462 mmhigh 31°low 24°June, rain 505 mmhigh 31°low 25°July, rain 451 mmhigh 31°low 26°August, rain 395 mmhigh 32°low 26°September, rain 338 mmhigh 31°low 25°October, rain 168 mmhigh 30°low 23°November, rain 28 mmhigh 28°low 17°December, rain 9 mmhigh 26°low 13°wettest month June, 505 mm · 2,710 mm a yearsee month by month →

Right now

What it's doing today vs the historical average for this date.
Mostly clear

Right now

28.9°

34°feels like
70%humidity
23°dew point
3 km/hfrom W
UV index0.1
sunrise05:59sunset17:26day length11h 27m
TodayMostly clear32°23°
ThuPartly cloudy31°23°
FriMostly clear32°23°
SatMostly clear31°21°
SunClear31°21°
MonMostly clear31°21°
TueClear32°21°

On this date: October 21

Today (forecast)
32° / 23°
Average for October 21
30° / 22°

High above average · +1.7°C

  • Highest since 1940: 34.1° · 2025
  • Lowest since 1940: 17.2° · 1987
  • One year ago: 34° / 24°

Every October 21 in history, coldest to hottest

▲ Daily highs▼ Daily lows

Dots show daily highs (top) and lows (bottom) for each October 21 on record (n = 86). Outlined dots are today's forecast.

Area we sample

Each city's history comes from one ERA5 grid cell, about 28 km across, shown by the dashed box. Near mountains or coasts, conditions can vary across the cell.

Location & data

Historical weather for Mymensingh is sampled from the ECMWF ERA5 reanalysis at 24.76°N, 90.41°E, with daily records since 1940.

Coordinates
24.76°N, 90.41°E
Time zone
Asia/Dhaka
Period
1940–2026
Data source
ERA5 (ECMWF)

Last 30 days

28 of the last 30 days were warmer than the historical average for that date. Average difference: +1.4°C.

Each bar is one day, from morning low to afternoon high. Warm-colored bars are days whose mean ran above average; cool bars ran below. The dot inside the bar is the daily mean. The shaded band is the typical 10–90% range expected for that date. Average = the day's mean temperature averaged across every year of record (1940–2026) for that calendar date.

This date over the years

One dot per year, showing the mean temperature on this calendar date. Dots are warmer or cooler than the long-term average (dashed line); the shaded band is the typical 10–90% range, and the highlighted dot is today's forecast. Based on ERA5 reanalysis: modelled estimates, not station readings.

Weather by month

Average temperatures and rainfall for each month: a typical year, from the full record.

Climate overview

The year peaks in August, at around 31.5°C by mid-afternoon, with nights around 25.7°C. Around 230 nights a year stay above 20°C. The coolest month is January, when afternoons reach about 25.0°C and overnight lows sit around 11.9°C.

The yearly total for Mymensingh comes to about 2,710 mm; monthly amounts range from 9 mm in December up to 505 mm in June. A typical year brings rain or snow on around 177 days.

Over the full record (since 1940), the annual mean temperature in Mymensingh has risen by 1.0°C between its first decade and its last. That last decade has also been the warmest in the record.

Climate graph (climograph)

August is the warmest month, January the coolest: a yearly swing of 10°C. Wettest month: June (~505 mm). Whole year averages ~2,710 mm of rain.

Bars = average monthly rainfall (right axis). Lines = average daily high and low (left axis). Average = each month's value averaged across every year of record (1940–2026).

Rainy days by month

About 177 rainy days a year: most in July (~30), fewest in December (~1).

Bars = average number of days with ≥ 2 mm per month. Hover for the monthly rainfall total.

Monthly wind

Average daily peak wind at 10 m, by month.

Monthly solar energy

Average daily incoming solar energy in megajoules per square metre: the record's own proxy for how sunny the month is.

Mymensingh month by month: what to expect

Typical conditions for each month, averaged across the full record (since 1940). Daylight is the time from sunrise to sunset. Highest and Lowest are the most extreme values in the ERA5 dataset (modelled since 1940), so they can differ from official weather-station readings.

MonthAvg highAvg lowRainRainy daysDaylightHighestLowest
January25.0°11.9°11 mm110.6 h30.5° (1990)4.1° (2013)
February27.8°14.2°24 mm211.2 h35.8° (1964)6.4° (1968)
March31.3°18.5°75 mm611.8 h39.6° (1963)10.0° (1979)
April32.0°22.1°244 mm1512.6 h43.9° (1957)13.8° (1968)
May31.5°23.7°462 mm2413.2 h42.4° (1957)17.8° (2012)
June31.4°25.3°505 mm2813.5 h38.9° (1979)21.7° (1993)
July31.3°25.7°451 mm3013.4 h37.7° (2024)23.1° (1965)
August31.5°25.7°395 mm2912.9 h37.0° (2023)22.8° (1981)
September31.2°25.1°338 mm2612.1 h37.6° (2024)21.0° (1994)
October30.2°22.5°168 mm1211.4 h36.2° (2021)15.8° (1967)
November28.3°17.4°28 mm210.8 h33.7° (2023)10.6° (1967)
December25.8°13.3°9 mm110.5 h30.3° (2023)6.1° (1983)

How it's changed

Year-by-year signals from 1940 to today.

Climate stripes

Annual mean shifted from 1940–1949 to 2016–2025 by +1.0°C.

Each vertical stripe is one year. Color encodes how much that year's annual mean differed from the long-term average. Average = each year's annual mean compared to the average of all years (1940–2026). cooler ← → warmer

Annual mean temperature

Long-term trend: +0.11°C per decade.

One point per year, showing the temperature averaged across the whole year. The dashed line is the least-squares long-term trend. Based on ERA5 reanalysis: modelled estimates, not station readings.

Seasonal warming

Sep–Nov is warming fastest: +0.23°C per decade.

Each faint line is one three-month period's average per year; the bold dashed line is its long-term trend. Different parts of the year often warm at different rates. Based on ERA5 reanalysis: modelled estimates, not station readings.

Hot days vs frost days

Days ≥ 30°C per year: 166.9 early in the record → 219.5 recently. Frost days: 0 → 0.

Thin lines are raw yearly counts; thick lines are the smoothed trend that removes year-to-year noise. The hot-day threshold is auto-picked per city so the line actually moves. Average = a centered 5-year rolling average to smooth weather noise.

Yearly hot & cold extremes

Hottest day since 1940 in 1957, coldest in 2013: 43.9°C / 4.1°C.

One point per year: the single hottest and coldest day recorded that year.

Annual rainfall

~2,710 mm/year on average. Last decade: −3% vs that average. Long-term trend: +12 mm per decade.

One bar per year of total rainfall. Dashed line is the long-term average. Average = the average annual rainfall across every year of record (1940–2026).

Day-by-day grid

Each tiny square is one calendar day across the full record, about 30,000 days per city. Use the mode switch above the chart: Anomaly colors each day by how far it ran from the historical average for that date (red = warmer, blue = cooler), Daily mean temp shows the absolute mean temperature for the day (useful to see seasons and heatwaves), and Precipitation shows daily rainfall (useful to spot wet/dry seasons and droughts). Average = the long-term average for that calendar date (1940–2026).

Frequently asked questions about Mymensingh

Which is the warmest month in Mymensingh?
On long-term average, the warmest month in Mymensingh is August (mean daily temperature of about 28.1°C) and the coolest is January (about 17.8°C).
How does today's temperature in Mymensingh compare to the historical average?
On October 21, 2026, Mymensingh is forecast to reach a high of 31.6°C and a low of 22.6°C. The long-term average for this date (the full record since 1940) is a high of 29.9°C and a low of 21.7°C, so today's high is 1.7°C warmer than that average.
How much has Mymensingh warmed since 1940?
Comparing the first decade of the record (1940–1949) with the most recent (2016–2025), the annual mean temperature in Mymensingh is about 1.0°C warmer.
How much does it rain in Mymensingh?
Mymensingh receives about 2,710 mm of precipitation per year on long-term average, with June typically the wettest month.
What is the average temperature in Mymensingh?
Over the full record (since 1940), the annual mean temperature in Mymensingh is about 24.7°C. The warmest month is August and the coolest is January.
What are the average temperatures in Mymensingh by month?
Average daily highs and lows for each month in Mymensingh (°C, full record since 1940): January 25°/12°, February 28°/14°, March 31°/19°, April 32°/22°, May 31°/24°, June 31°/25°, July 31°/26°, August 32°/26°, September 31°/25°, October 30°/23°, November 28°/17°, December 26°/13°.
What is the weather like in Mymensingh in summer?
In summer, June through August, Mymensingh is wet and hot. Daytime highs sit at 31–32°C and nights at 25–26°C; August is the warmest month. Rain falls on about 29 days a month, adding up to around 451 mm. It is the wettest season of the year.
What is the weather like in Mymensingh in winter?
In winter, December through February, Mymensingh is dry and warm. Afternoons run 25–28°C and nights 12–14°C; January is the coldest month. Rain rises from 9 mm on 1 day in December to 24 mm on 2 days in February. No season is drier.
What is the weather like in Mymensingh in spring?
In spring, March through May, Mymensingh is wet and hot. Expect 31–32°C by day and 19–24°C at night, with April the warmest month. Rain picks up through the season: 6 rainy days and 75 mm in March, 24 days and 462 mm in May.
What is the weather like in Mymensingh in autumn?
September to November is autumn in Mymensingh, and it is wet and warm. Daytime highs sit at 28–31°C and nights at 17–25°C; November is the coldest month. Rain eases through the season: 26 rainy days and 338 mm in September, 2 days and 28 mm in November.
How many days a year does it rain in Mymensingh?
On long-term average, Mymensingh has about 177 days a year with at least 2 mm of rain or snow. The annual total is roughly 2,710 mm.

Weather in nearby cities