Muscat Temperature by Month

The average annual maximum temperature in Muscat, Ad Dakhiliyah, Oman is 31°C (88°F), with daytime highs ranging from 25°C (77°F) in January to 37°C (99°F) in June. This page covers monthly averages, day-night differences, and how Muscat compares to cities worldwide.

In Muscat, temperatures differ significantly between summer and winter months. Nighttime lows reflect this range, dropping from 31°C (88°F) in June to 19°C (66°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Muscat by month:

Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. June, the warmest month, sees 326 hours of sunshine.

The chart below shows the average temperature throughout the year:

Muscat's average annual maximum temperature is 31°C (88°F). To put that in context, here's how it compares to a few well-known destinations:

Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.

On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.

Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In Muscat, January is the coolest month, with average highs of 25°C (77°F) and humidity around 63%, considered high. In June, the warmest month, temperatures average 37°C (99°F) with 49% humidity, conditions that feel moderate. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.

Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.

For more on Muscat's weather, including monthly rainfall, sunshine hours, and humidity, visit our Muscat climate page.