Muscat, Oman Climate & Monthly Averages
Muscat has a tropical wet-and-dry climate. June is the hottest month, averaging 102° by day; January is the coldest at 76°.
Muscat's climate runs on sunshine and sparse rain
With 3.3 inches (84 mm) of annual precipitation, Muscat is one of the drier places we cover. October is the wettest month it gets, at 15 mm (0.6 in), and the year runs between 76°F (24°C) and 102°F (39°C) by day.
What the dry climate changes
Average highs hold at or above 30°C for 7 months of the year, April through October being the unbroken run. January is the coolest month, with highs of 76°F (24°C) and lows near 63°F (17°C). At its warmest, in June, Muscat runs to 102°F (39°C) in the afternoon and back to 87°F (31°C) by dawn. 12 months average under 20 mm of rain, the longest unbroken stretch running January through December.
The wettest month is October (15 mm (0.6 in) across 1 days) and the driest August. May is the brightest month at 11.9 hours of sun a day, against an annual average of 11.0 - sunnier than 95% of the 3496 cities in our dataset. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 116°F (47°C) and the lowest daily minimum 52°F (11°C).
More climate facts for Muscat
- Hottest month: June - highs near 102°F (39°C)
- Coldest month: January - highs near 76°F (24°C)
- Decade extremes (2015-2024): 116°F (47°C) high · 52°F (11°C) low
- Wettest month: October (1 rainy days) · Sunniest: May (11.9 h sun/day)
- Climate type: tropical wet-and-dry
- Annual swing: 14°C between the average warmest and coolest month · day to night: 8°C
- Months averaging 30°C or hotter: 7
- Average humidity: 51%
Heat, cold and scarce precipitation in the dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.
When the dry weather is easiest to use
Avoiding the hardest heat or cold
Aim for November to March if you get the choice: temperatures sit either side of the peak heat rather than in it, and highs average 81°F (27°C) against roughly 2 wet days a month. For the same question asked the other way round, see where else is warm in November.
Prepare for sun and cooler nights
Pack for Muscat with lightweight, breathable clothing and serious sun protection. Note the gap between afternoon and night: June pairs 102°F (39°C) with 87°F (31°C).
Monthly heat and rainfall table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 76° | 63° | 3 | 0.5 in | 10.1 h/day | 10.8 h | 9% | 60% |
| February | 79° | 65° | 1 | 0.3 in | 10.6 h/day | 11.3 h | 4% | 58% |
| March | 85° | 71° | 2 | 0.4 in | 10.8 h/day | 12.0 h | 6% | 51% |
| April | 93° | 78° | 1 | 0.3 in | 11.6 h/day | 12.7 h | 3% | 40% |
| May | 101° | 85° | 0 | 0.0 in | 11.9 h/day | 13.3 h | 1% | 34% |
| June | 102° | 87° | 0 | 0.0 in | 11.9 h/day | 13.6 h | 1% | 43% |
| July | 100° | 88° | 1 | 0.3 in | 10.9 h/day | 13.5 h | 3% | 52% |
| August | 98° | 84° | 0 | 0.0 in | 11.2 h/day | 12.9 h | 0% | 54% |
| September | 96° | 82° | 0 | 0.0 in | 11.7 h/day | 12.2 h | 0% | 51% |
| October | 92° | 78° | 1 | 0.6 in | 10.9 h/day | 11.6 h | 4% | 51% |
| November | 85° | 72° | 1 | 0.2 in | 10.2 h/day | 11.0 h | 4% | 56% |
| December | 78° | 66° | 1 | 0.5 in | 9.9 h/day | 10.7 h | 4% | 60% |
How daytime heat and cool nights change by month
Each card shows the average high and low. The bar places that month between Muscat's coldest night and warmest afternoon.
January
- Rain
- 3 days
- Sunshine
- 10.1 h
- Daylight
- 10.8 h
February
- Rain
- 1 day
- Sunshine
- 10.6 h
- Daylight
- 11.3 h
March
- Rain
- 2 days
- Sunshine
- 10.8 h
- Daylight
- 12.0 h
April
- Rain
- 1 day
- Sunshine
- 11.6 h
- Daylight
- 12.7 h
May
- Rain
- 0 days
- Sunshine
- 11.9 h
- Daylight
- 13.3 h
June
- Rain
- 0 days
- Sunshine
- 11.9 h
- Daylight
- 13.6 h
July
- Rain
- 1 day
- Sunshine
- 10.9 h
- Daylight
- 13.5 h
August
- Rain
- 0 days
- Sunshine
- 11.2 h
- Daylight
- 12.9 h
September
- Rain
- 0 days
- Sunshine
- 11.7 h
- Daylight
- 12.2 h
October
- Rain
- 1 day
- Sunshine
- 10.9 h
- Daylight
- 11.6 h
November
- Rain
- 1 day
- Sunshine
- 10.2 h
- Daylight
- 11.0 h
December
- Rain
- 1 day
- Sunshine
- 9.9 h
- Daylight
- 10.7 h
Looking for warmer alternatives? Browse warm places by month, or compare Muscat's coolest part of the year: January, December, February.
Heat and cold across the Muscat year
March through May
March through May in Muscat brings serious heat, with daytime highs averaging 93°F (34°C) and nights around 78°F (25°C); precipitation is sparse, near 20 mm (0.8 in) for the season. Daylight is generous - around 11.4 hours of sun a day.
June through August
June through August in Muscat is punishingly hot, with daytime highs averaging 100°F (38°C) and nights around 86°F (30°C); precipitation is sparse, near 9 mm (0.3 in) for the season. Daylight is generous - around 11.3 hours of sun a day.
September through November
Through September through November, Muscat brings hot afternoons: 91°F (33°C) by day, 77°F (25°C) after dark, and precipitation is sparse, near 21 mm (0.8 in) for the season. Daylight is generous - around 10.9 hours of sun a day.
December through February
December through February in Muscat is mild and warm, with daytime highs averaging 78°F (25°C) and nights around 65°F (18°C); precipitation is sparse, near 1.3 inches (33 mm) for the season. Daylight is generous - around 10.2 hours of sun a day.
How unusual is Muscat?
- Muscat averages 84°F (29°C) across the year - warmer than any other city in our 3496-city dataset.
- Rain or snow reaches the ground on 12 days a year - fewer wet days than almost every other city we track.
- Annual precipitation is 3.3 inches (84 mm) - drier than almost every other city we track.
These comparisons use the same ten-year window for every city in the dataset.