WeatherJourney.com

Myeik weather by month: averages, rainfall & climate trends

Warmth in Myeik is remarkably steady: only 2.3°C separates the warmest month from the coolest, so there is no cold season to speak of. Most of the year's rain is packed into the months from May to October. Myeik weather by month: average temperatures, rainfall, extremes and how the climate has changed since 1940.

Today vs average

−0.1°Chigh near average

31° / 26°Today
31° / 24°Average
see today in detail →

How it's changed

+2.1°Caverage temperature, 2016–2025 vs 1940–1949average temperature vs 1940–49303days above 30°C a year now (2016–2025) · 187 in the 1940sdays above 30°C · 187 in the 1940s+2.1°C vs the 1940s · see how it's changed →
Weather by montha typical year, averaged over the full recordJanuary, rain 31 mmhigh 32°low 22°February, rain 51 mmhigh 33°low 23°March, rain 92 mmhigh 33°low 24°April, rain 157 mmhigh 33°low 25°May, rain 434 mmhigh 31°low 25°June, rain 605 mmhigh 30°low 25°July, rain 627 mmhigh 29°low 24°August, rain 648 mmhigh 29°low 24°September, rain 576 mmhigh 29°low 24°October, rain 354 mmhigh 31°low 24°November, rain 106 mmhigh 31°low 24°December, rain 27 mmhigh 32°low 22°wettest month August, 648 mm · 3,706 mm a yearsee month by month →

Right now

What it's doing today vs the historical average for this date.
Thunderstorm with hail

Right now

30.5°

37°feels like
76%humidity
26°dew point
3 km/hfrom S
UV index5.0
sunrise05:46sunset17:35day length11h 49m
TodayOvercast31°26°
TueOvercast33°26°
WedOvercast33°26°
ThuOvercast33°26°
FriMostly clear32°25°
SatShowers31°26°
SunOvercast32°26°

On this date: October 19

Today (forecast)
31° / 26°
Average for October 19
31° / 24°

High near average · −0.1°C

  • Highest since 1940: 33.7° · 2006
  • Lowest since 1940: 22.3° · 1941
  • One year ago: 32° / 25°

Every October 19 in history, coldest to hottest

▲ Daily highs▼ Daily lows

Dots show daily highs (top) and lows (bottom) for each October 19 on record (n = 87). 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 Myeik is sampled from the ECMWF ERA5 reanalysis at 12.44°N, 98.60°E, with daily records since 1940.

Coordinates
12.44°N, 98.60°E
Time zone
Asia/Yangon
Period
1940–2026
Data source
ERA5 (ECMWF)

Last 30 days

28 of the last 31 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 April, at around 33.0°C by mid-afternoon, with nights around 25.3°C. The coolest month is August, when afternoons reach about 29.0°C and overnight lows sit around 24.4°C.

In total, Myeik averages about 3,706 mm of precipitation a year; August is usually the wettest month (648 mm) and December the driest (27 mm).

Over the full record (since 1940), the annual mean temperature in Myeik has risen by 2.1°C between its first decade and its last. The count of days past 30°C has risen from roughly 185 a year to 305 between the record's first and last decades.

Climate graph (climograph)

April is the warmest month, August the coolest: a yearly swing of 2°C. Wettest month: August (~648 mm). Whole year averages ~3,706 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).

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.

Myeik 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 lowRainDaylightHighestLowest
January32.4°22.1°31 mm11.3 h37.8° (2016)14.9° (1940)
February32.8°23.1°51 mm11.6 h38.7° (2024)17.9° (1974)
March33.1°24.3°92 mm11.9 h39.7° (2016)18.8° (1986)
April33.0°25.3°157 mm12.3 h38.9° (2019)22.2° (1972)
May31.1°25.2°434 mm12.6 h39.6° (1998)22.5° (1975)
June29.6°24.8°605 mm12.7 h34.7° (2014)22.5° (1957)
July29.2°24.5°627 mm12.7 h33.9° (2022)22.5° (1960)
August29.0°24.4°648 mm12.4 h33.6° (2022)22.2° (1943)
September29.3°24.3°576 mm12.1 h34.4° (2018)22.1° (1966)
October30.5°24.3°354 mm11.7 h34.8° (2004)20.3° (1978)
November31.4°23.6°106 mm11.4 h36.0° (1979)16.7° (1971)
December31.9°22.2°27 mm11.3 h36.3° (2007)14.8° (1999)

How it's changed

Year-by-year signals from 1940 to today.

Climate stripes

Annual mean shifted from 1940–1949 to 2016–2025 by +2.1°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: +0.26°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

Dec–Feb is warming fastest: +0.27°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: 186.6 early in the record → 303.3 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 2016, coldest in 1999: 39.7°C / 14.8°C.

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

Annual rainfall

~3,706 mm/year on average. Last decade: +4% vs that average. Long-term trend: +3 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 Myeik

Which is the warmest month in Myeik?
On long-term average, the warmest month in Myeik is April (mean daily temperature of about 28.5°C) and the coolest is August (about 26.2°C).
How does today's temperature in Myeik compare to the historical average?
On October 19, 2026, Myeik is forecast to reach a high of 30.8°C and a low of 26.4°C. The long-term average for this date (the full record since 1940) is a high of 30.9°C and a low of 24.4°C, so today's high is about equal to that average.
How much has Myeik warmed since 1940?
Comparing the first decade of the record (1940–1949) with the most recent (2016–2025), the annual mean temperature in Myeik is about 2.1°C warmer.
How much does it rain in Myeik?
Myeik receives about 3,706 mm of precipitation per year on long-term average, with August typically the wettest month.
What is the average temperature in Myeik?
Over the full record (since 1940), the annual mean temperature in Myeik is about 27.0°C. The warmest month is April and the coolest is August.
What are the average temperatures in Myeik by month?
Average daily highs and lows for each month in Myeik (°C, full record since 1940): January 32°/22°, February 33°/23°, March 33°/24°, April 33°/25°, May 31°/25°, June 30°/25°, July 29°/24°, August 29°/24°, September 29°/24°, October 31°/24°, November 31°/24°, December 32°/22°.

Weather in nearby cities