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Muscat weather by month: averages, rainfall & climate trends

Muscat has well-marked seasons, with 15.0°C between its warmest and coolest monthly means. Rain is a rare event here. Muscat weather by month: average temperatures, rainfall, extremes and how the climate has changed since 1940.

Today vs average

−2.0°Chigh below average

32° / 28°Today
34° / 25°Average
see today in detail →

How it's changed

+1.8°Caverage temperature, 2016–2025 vs 1940–1949average temperature vs 1940–49259days above 30°C a year now (2016–2025) · 239 in the 1940sdays above 30°C · 239 in the 1940s+1.8°C vs the 1940s · see how it's changed →
Weather by montha typical year, averaged over the full recordJanuary, rain 17 mmhigh 25°low 17°February, rain 15 mmhigh 26°low 18°March, rain 15 mmhigh 30°low 21°April, rain 9 mmhigh 34°low 25°May, rain 2 mmhigh 38°low 30°June, rain 4 mmhigh 40°low 31°July, rain 5 mmhigh 39°low 32°August, rain 2 mmhigh 38°low 31°September, rain 0 mmhigh 37°low 28°October, rain 2 mmhigh 34°low 25°November, rain 8 mmhigh 30°low 21°December, rain 16 mmhigh 26°low 18°wettest month January, 17 mm · 97 mm a yearsee month by month →

Right now

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

Right now

31.3°

37°feels like
67%humidity
24°dew point
7 km/hfrom N
UV index5.7
sunrise06:05sunset17:37day length11h 32m
TodayClear32°28°
TueMostly clear31°27°
WedClear32°26°
ThuClear33°26°
FriClear34°25°
SatClear35°26°
SunMostly clear33°25°

On this date: October 19

Today (forecast)
32° / 28°
Average for October 19
34° / 25°

High below average · −2.0°C

  • Highest since 1940: 38.9° · 2006
  • Lowest since 1940: 18.9° · 1955
  • One year ago: 34° / 26°

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 Muscat is sampled from the ECMWF ERA5 reanalysis at 23.58°N, 58.41°E, with daily records since 1940.

Coordinates
23.58°N, 58.41°E
Time zone
Asia/Muscat
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

June brings the year's peak warmth, with afternoons typically reaching 39.7°C and nights around 31.3°C. At the other extreme, January brings afternoon highs of about 24.7°C and typical overnight lows of 16.6°C.

The annual total in Muscat is just 97 mm or so, with January the most likely month to see any of it.

Over the full record (since 1940), the annual mean temperature in Muscat has risen by 1.8°C between its first decade and its last. Recent years have brought less rain as well. The last decade sits roughly 17% under the long-term average.

Climate graph (climograph)

June is the warmest month, January the coolest: a yearly swing of 15°C. Wettest month: January (~17 mm). Whole year averages ~97 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.

Muscat 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
January24.7°16.6°17 mm10.7 h33.1° (2016)8.0° (1949)
February26.3°17.9°15 mm11.2 h36.5° (2015)8.1° (1950)
March29.8°21.1°15 mm11.8 h39.4° (2003)11.9° (1940)
April34.1°25.2°9 mm12.6 h42.0° (2001)13.5° (1967)
May38.5°29.5°2 mm13.1 h46.5° (2009)19.8° (1967)
June39.7°31.3°4 mm13.4 h46.0° (2016)25.0° (1971)
July38.8°31.7°5 mm13.3 h45.8° (1990)25.7° (1958)
August37.8°30.6°2 mm12.8 h44.4° (2009)24.3° (1962)
September36.6°28.3°0 mm12.1 h42.6° (2001)19.3° (1962)
October34.3°25.0°2 mm11.4 h41.0° (2023)17.0° (1975)
November29.6°21.0°8 mm10.8 h36.6° (2006)13.5° (1966)
December26.0°18.0°16 mm10.6 h33.7° (1994)8.7° (1959)

How it's changed

Year-by-year signals from 1940 to today.

Climate stripes

Annual mean shifted from 1940–1949 to 2016–2025 by +1.8°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: +0.35°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: 239.2 early in the record → 259.1 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 2009, coldest in 1949: 46.5°C / 8.0°C.

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

Annual rainfall

~97 mm/year on average. Last decade: −17% vs that average. Long-term trend: −1 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 Muscat

Which is the warmest month in Muscat?
On long-term average, the warmest month in Muscat is June (mean daily temperature of about 35.7°C) and the coolest is January (about 20.7°C).
How does today's temperature in Muscat compare to the historical average?
On October 19, 2026, Muscat is forecast to reach a high of 32.0°C and a low of 28.0°C. The long-term average for this date (the full record since 1940) is a high of 34.0°C and a low of 24.5°C, so today's high is 2.0°C cooler than that average.
How much has Muscat warmed since 1940?
Comparing the first decade of the record (1940–1949) with the most recent (2016–2025), the annual mean temperature in Muscat is about 1.8°C warmer.
How much does it rain in Muscat?
Muscat receives about 97 mm of precipitation per year on long-term average, with January typically the wettest month.
What is the average temperature in Muscat?
Over the full record (since 1940), the annual mean temperature in Muscat is about 29.0°C. The warmest month is June and the coolest is January.
What are the average temperatures in Muscat by month?
Average daily highs and lows for each month in Muscat (°C, full record since 1940): January 25°/17°, February 26°/18°, March 30°/21°, April 34°/25°, May 38°/30°, June 40°/31°, July 39°/32°, August 38°/31°, September 37°/28°, October 34°/25°, November 30°/21°, December 26°/18°.
What is the weather like in Muscat in summer?
Summer in Muscat (June to August) is dry and really hot. Daytime highs sit at 38–40°C and nights at 31–32°C; June is the warmest month. Hardly any rain falls.
What is the weather like in Muscat in winter?
December to February is winter in Muscat, and it is dry and pleasantly warm. Afternoons run 25–26°C and nights 17–18°C; January is the coldest month. About 16 mm of rain a month.
What is the weather like in Muscat in spring?
Spring in Muscat (March to May) is dry and hot. March is still 30°C in the afternoon and 21°C at night, May already 38°C and 30°C. Hardly any rain falls.
What is the weather like in Muscat in autumn?
In autumn, September through November, Muscat is dry and hot. It cools from 37°C by day and 28°C at night in September to 30°C and 21°C in November. Almost no rain.

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