Hayma climate
Hayma (Oman) has a hot desert climate (Köppen BWh). The average temperature over the year is 28 °C83 °F, and about 73 mm2.9 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Hayma climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2679 | 1355 | 1967 | 40.1 |
| Feb | 2984 | 1457 | 2170 | 90.4 |
| Mar | 3391 | 1763 | 2577 | 271.1 |
| Apr | 3799 | 2170 | 2985 | 80.3 |
| May | 41105 | 2576 | 3391 | 60.2 |
| Jun | 42108 | 2780 | 3594 | 40.1 |
| Jul | 42108 | 2882 | 3595 | 30.1 |
| Aug | 42107 | 2781 | 3494 | 30.1 |
| Sep | 39103 | 2475 | 3289 | 20.1 |
| Oct | 3696 | 2170 | 2883 | 30.1 |
| Nov | 3188 | 1865 | 2577 | 30.1 |
| Dec | 2781 | 1558 | 2170 | 20.1 |
| Year | 42108 | 1355 | 2883 | 732.9 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 52% | 15% | 5.2 | 11:03 |
| Feb | 50% | 15% | 6.0 | 11:28 |
| Mar | 45% | 21% | 6.8 | 11:59 |
| Apr | 40% | 22% | 7.3 | 12:35 |
| May | 40% | 19% | 7.5 | 13:04 |
| Jun | 35% | 31% | 7.2 | 13:20 |
| Jul | 36% | 37% | 6.7 | 13:14 |
| Aug | 40% | 32% | 6.7 | 12:48 |
| Sep | 45% | 22% | 6.8 | 12:14 |
| Oct | 45% | 16% | 6.3 | 11:39 |
| Nov | 51% | 15% | 5.4 | 11:10 |
| Dec | 53% | 15% | 4.9 | 10:56 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Hayma is like
The warmest month is July, with an average high of 42 °C108 °F and a low of 28 °C82 °F. The coldest is January, when highs average 26 °C79 °F and lows 13 °C55 °F. There is a clear seasonal cycle, with 15.7 °C28.3 °F between the average temperature of the warmest and the coolest month.
It is very dry, with only 73 mm2.9 in of precipitation in an average year. The wettest three-month stretch is February–April, which brings 60% of the annual total. Months with less than 20 mm0.8 in on average: April–February. The wettest month is March (27 mm1.1 in), the driest is September (2 mm0.1 in).
Relative humidity ranges from 35% in June to 53% in December. The clearest skies (lowest average cloud amount, 15%) are typical of December. Average wind speed near the ground ranges from 8 km/h (5 mph) in November to 15 km/h (9 mph) in July. Daylight lasts from about 10.9 hours in December to 13.3 hours in June.
Best time to visit Hayma
Based on these averages, the most comfortable months for sightseeing and outdoor activities are December–February: average highs of 26 °C79 °F to 29 °C84 °F with 2 mm0.1 in to 9 mm0.4 in of precipitation per month.
The most challenging month is June, which is hot, with average highs of 42 °C108 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Hayma
- Wetter months (February–April) — highs 2984 to 37 °C99 °F, lows 1457 to 21 °C70 °F, about 15 mm0.6 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an extra layer for the cooler mornings and evenings.
- Drier months (May–January) — highs 2679 to 42 °C108 °F, lows 1355 to 28 °C82 °F, about 3 mm0.1 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Hayma compares
Compared with Masirah, about 282 km to the east, Hayma is on average 1.9 °C3.4 °F warmer and receives 7% more precipitation (73 mm2.9 in vs 68 mm2.7 in). The difference is largest in August (8.4 °C15.1 °F warmer).
Of the 32 places in Oman covered by World Climates, Hayma is the 17th warmest by annual mean temperature and the 28th wettest by annual precipitation. See all of them on the Oman climate page.
Places in other countries with the most similar temperature and rainfall pattern: Al Ain City (United Arab Emirates, BWh), Abu Dhabi (United Arab Emirates, BWh) and Warisan (United Arab Emirates, BWh).
Nearby places
- Duqm 153 km · 27 °C80 °F · 69 mm2.7 in
- Mahout 213 km · 27 °C81 °F · 46 mm1.8 in
- Marmul 234 km · 26 °C80 °F · 163 mm6.4 in
- Fahud 267 km · 30 °C86 °F · 76 mm3.0 in
- Al Hallaniyat Islands 274 km · 26 °C78 °F · 194 mm7.6 in
- Masirah 282 km · 26 °C79 °F · 68 mm2.7 in
- Adam 299 km · 30 °C85 °F · 134 mm5.3 in
- Jabal Samhan 347 km · 25 °C77 °F · 301 mm12 in
Frequently asked questions
What is the warmest month in Hayma?
July is the warmest month in Hayma, with an average high of 42 °C (108 °F) and an average low of 28 °C (82 °F).
What is the coldest month in Hayma?
January is the coldest month, with an average high of 26 °C (79 °F) and an average low of 13 °C (55 °F).
When does it rain the most in Hayma?
March is the wettest month with about 27 mm (1.1 in) of precipitation; September is the driest with about 2 mm (0.1 in).
What is the best time to visit Hayma?
Judging by long-term averages, the most comfortable months are December–February.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.