Climate and monthly weather forecastAr Rustaq, Oman
Ar Rustaq, Oman - Climate and weather forecast by month. Detailed climate information with charts - average monthly weather with temperature, pressure, humidity, precipitation, wind, daylight, sunshine, visibility, and UV index data. Given the climatic conditions, the best time to visit Ar Rustaq would be during the cooler months from November to February, when temperatures vary between 12°C (53.6°F) and 26.3°C (79.3°F), providing a respite from the intense heat prevalent for most of the year. The number of rainfall days per month also follows a similar pattern, being highest from July to August, with an above average of 7 days, and reaching the low point in September with just 1.6 days.
Climate and monthly weather forecast
The climate of Ar Rustaq
Ar Rustaq, situated in the Sultanate of Oman, experiences a climate that falls under the Köppen classification BWh, also known as the Subtropical Desert Climate. An overarching feature of this climate zone is the low annual rainfall and high temperatures, largely due to its location in the subtropics.Analyzing the climatological data, temperature patterns in Ar Rustaq reveal a trend of extreme heat during the summer months, typically peaking at about 39.1°C (102.4°F) in June and further rising to 39°C (102.2°F) in July. The lowest temperatures are seen in January, ranging from 12°C (53.6°F) to 22°C (71.6°F). Relative humidity is highest in December and January, reaching 50% and 49% respectively, and it dips to its lowest in the month of May at 23%.
Rainfall in Ar Rustaq is an infrequent event. Amounts peak at 18mm (0.71") in August and are lowest at 1mm (0.04") in September. The number of rainfall days per month also follows a similar pattern, being highest from July to August, with an above average of 7 days, and reaching the low point in September with just 1.6 days. Sunshine hours also fluctuate with the highest recorded at 13.6 hours in June and the lowest at 10.7 hours in December. Meanwhile, wind speed ranges from a minimum of 4.4km/h (2.7mph) in November and a maximum of 7km/h (4.3mph) in June.
The best time to visit Ar Rustaq
Given the climatic conditions, the best time to visit Ar Rustaq would be during the cooler months from November to February, when temperatures vary between 12°C (53.6°F) and 26.3°C (79.3°F), providing a respite from the intense heat prevalent for most of the year.This period also presents a reasonable time to explore this historic city, thanks to the warmer daytime temperatures and cooler evenings. Moreover, the relative humidity is at its annual high, providing for improved comfort levels. The wind speeds also decrease during this period, averaging between 4.4km/h (2.7mph) and 4.6km/h (2.9mph), providing ideal conditions for outdoor activities.
The worst time to visit Ar Rustaq
In sharp contrast to the cooler months, the period from June to August proves to be a challenging time to visit Ar Rustaq. Daytime temperatures soar, often reaching above 39°C (102.2°F). Despite the significant sunshine hours, the extreme heat during these months makes outdoor activities and sightseeing relatively uncomfortable.The relative humidity, although rising to 28-33%, does little to mitigate the intense heat. The wind speeds are also at their annual maximum, averaging up to 7km/h (4.3mph) in June, further complicating conditions for outdoor exploration.
Spring weather in Ar Rustaq
Spring weather in Ar Rustaq, encompassing March, April, and May, is characterized by rising temperatures starting from 28.3°C (82.9°F) in March to 36.8°C (98.2°F) in May. The relative humidity drops significantly during these months, from 34% down to a minimum of 23% in May, one of the lowest recorded through the year.During this period, rainfall is also scant, ranging from 8mm (0.31") in March to as low as 8mm (0.31") again in May. However, the city experiences increased sunshine hours, reaching an impressive 13.3 hours a day in May, coupled with a substantial amount of sunny days.
Summer weather in Ar Rustaq
Summers in Ar Rustaq, spanning June through August, are characterized by extremely high temperatures, regularly peaking between 36.8°C (98.2°F) and 39°C (102.2°F). This season also records the lowest relative humidity of 25% to 33%.The rainfall during these sweltering months is slightly higher than other periods, marking numbers between 13mm (0.51") in July and 18mm (0.71") in August. Despite the high temperatures, there are 13.6 hours of daylight in June, the most throughout the year.
Autumn weather in Ar Rustaq
Autumn in Ar Rustaq runs from September through November. Temperature-wise, this season experiences a gradual decline from 36°C (96.8°F) in September to 26.3°C (79.3°F) by November. During this season, rainfall is irregular with a significant reduction noted from 18mm (0.71") in August to just 1mm (0.04") in September.Despite the declining temperatures, the extended daylight hours starting at 12.3 hours in September and ending at 11 hours by November prove advantageous for outdoor activities.
Winter weather in Ar Rustaq
During the winter months of December through February, temperatures in Ar Rustaq are relatively lower, ranging dramatically from a low of 12°C (53.6°F) to a high of 24.1°C (75.4°F). Rainfall during these months is fairly moderate, hitting 6mm (0.24") in January and February. The relative humidity during winter reaches its peak at 50% in December and 49% in February, representing the highest annual mark.Despite the lower temperatures, there remains ample daylight with approximately 10.7 to 11.4 hours, ensuring plenty of opportunities for exploring the city's attractions. The lower wind speed also adds to the comfort during this season.
Weather in January
In January, the weather in Ar Rustaq, Oman, is typically characterized by fair temperatures and a moderate amount of cloud cover. With the pressure standing at 1017.5mb, skies stay largely clear while daytime temperatures range between 12°C (53.6°F) and 22°C (71.6°F). Weather in January »Weather in February
In February, Ar Rustaq, Oman, sees an incremental rise in temperatures compared to January, while the relative humidity drops to 44%. As temperatures mop up from 14°C (57.2°F) to 24.1°C (75.4°F), the daylight hours stretch to 11.4, with 9.4 hours abundant in sunlight. Weather in February »Weather in March
Come March, and the weather in Ar Rustaq, Oman, takes a notable shift, gradually warming up while also bearing slightly increased rainfall. The temperatures navigate 17.7°C (63.9°F) up to 28.3°C (82.9°F), marking the beginning of noticeable heat in the area. Weather in March »Weather in April
As April descends on Ar Rustaq, Oman, one can expect a marked escalation in temperatures and a reduction in relative humidity. With a significant range in temperatures from 22°C (71.6°F) to 32.9°C (91.2°F), April stands out for the high levels of atmospheric heat. Weather in April »Weather in May
Ar Rustaq, Oman, experiences a complex blend of weather elements in May, with a distinct leap in temperature and an accompanying drop in humidity figures. Temperatures fluctuating from 25.5°C (77.9°F) to 36.8°C (98.2°F) combined with a UV index of 8 underpin the escalating intensity of the sun. Weather in May »Weather in June
The weather in Ar Rustaq, Oman, peaks to summer heights in June, setting the scene with amplified sunlight and amplified temperatures. The average maximum wind gust intensity this month elevates to 10.1km/h (6.3mph), a figure not exceeded in any other month. Weather in June »Weather in July
July presents itself as a slightly cooler respite amid the summer months in Ar Rustaq, Oman. Despite the amplified rainfall averaging at 13mm (0.51"), the moisture barely makes a dent in the prevailing heat. The climb down from July to August sees a minor alleviation from the heat even when the cloud cover rises. Weather in July »Weather in August
August establishes itself as another month reflecting summer's full throttle in Ar Rustaq, Oman. The highest recorded humidity levels of the year, at 33%, come into play this month. The change towards September bears mostly consistent weather patterns, albeit with reduced rainfall incidents. Weather in August »Weather in September
September in Ar Rustaq, Oman, presents an interesting contrast between gradually falling temperatures and declining rainfall. Notably, the lowest rainfall of the year occurs this month, standing at just 1mm (0.04"). A taper in temperatures resonates through the transition from September to October, along with increased cloud cover. Weather in September »Weather in October
The weather during October in Ar Rustaq, Oman, marks a shift towards the city's cooler months, with falling temperatures and a relative increase in rainfall. With a substantially improved visibility of 10km (6.2mi) throughout the month, the cityscape views are exceptionally vivid. Weather in October »Weather in November
November weather in Ar Rustaq, Oman, demonstrates the city's transit into winter, establishing lower temperatures and a hint of an increased downpour. As temperatures take a dip from 17°C (62.6°F) to 26.3°C (79.3°F), the weather begins to feel significantly cooler. Weather in November »Weather in December
December signifies the dawn of winter in Ar Rustaq, Oman, exhibiting even cooler temperatures and marginally higher cloud cover. The barometric pressure increases back up to its yearly high of 1017.2mb, bringing consistency to the weather pattern. Weather in December »Updated: Aug 29, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the month when Ar Rustaq experiences its coldest temperatures, averaging a high of 22°C (71.6°F) and a low of 12°C (53.6°F).
With an average relative humidity of 50%, January is the most humid month.
Throughout the year, in Ar Rustaq, there are 47.9 rainfall days, and 113mm (4.45") of precipitation is accumulated.
The month with the least sunshine is January, with an average of 7.5h of sunshine.
January and December, with an average maximum UV index of 5, are months with the lowest UV index.
April through August, with an average maximum UV index of 8, are months with the highest UV index.
With an average relative humidity of 23%, May is the least humid month.
In Ar Rustaq, the peak temperatures are generally noted in June, averaging a high of 39.1°C (102.4°F) and a low of 27.3°C (81.1°F).
With an average of 13h and 36min of daylight, June has the longest days of the year.
June and August, with an average of 12.2h of sunshine, are months with the most sunshine.
August is the month with the most rainfall. Rain falls for 7.2 days and accumulates 18mm (0.71") of precipitation.
The month with the least rainfall is September, when the rain falls for 1.6 days and typically collects 1mm (0.04") of precipitation.
December has the shortest days of the year, with an average of 10h and 42min of daylight.
Ar Rustaq does not utilize Daylight Saving Time (DST). +04 timezone is used over the entire year.
Average temperature
Ar Rustaq, Oman
The warmest month (with the highest average high temperature) is June (39.1°C).
The month with the lowest average high temperature is January (22°C).
The month with the highest average low temperature is July (28.3°C).
The coldest month (with the lowest average low temperature) is January (12°C).
Average pressure
Ar Rustaq, Oman
- Average pressure in January:
1017.5mbar - Average pressure in February:
1015.8mbar - Average pressure in March:
1013.4mbar - Average pressure in April:
1010.4mbar - Average pressure in May:
1006.5mbar - Average pressure in June:
1000.6mbar
- Average pressure in July:
998.4mbar - Average pressure in August:
1000.8mbar - Average pressure in September:
1005.6mbar - Average pressure in October:
1011.5mbar - Average pressure in November:
1015.3mbar - Average pressure in December:
1017.2mbar
The month with the highest atmospheric pressure is January (1017.5mbar).
The month with the lowest atmospheric pressure is July (998.4mbar).
Average wind speed
Ar Rustaq, Oman
- Average wind speed in January:
4.7km/h - Average wind speed in February:
5.8km/h - Average wind speed in March:
6.1km/h - Average wind speed in April:
6.3km/h - Average wind speed in May:
6.6km/h - Average wind speed in June:
7km/h
- Average wind speed in July:
6.1km/h - Average wind speed in August:
5.7km/h - Average wind speed in September:
5.3km/h - Average wind speed in October:
4.8km/h - Average wind speed in November:
4.4km/h - Average wind speed in December:
4.6km/h
The windiest month (with the highest average wind speed) is June (7km/h).
The calmest month (with the lowest average wind speed) is November (4.4km/h).
Average humidity
Ar Rustaq, Oman
The month with the highest relative humidity is January (50%).
The month with the lowest relative humidity is May (23%).
Average rainfall
Ar Rustaq, Oman
The wettest month (with the highest rainfall) is August (18mm).
The driest month (with the least rainfall) is September (1mm).
Average rainfall days
Ar Rustaq, Oman
- Average rainfall days in January:
2.8 days - Average rainfall days in February:
1.8 days - Average rainfall days in March:
5.2 days - Average rainfall days in April:
5.7 days - Average rainfall days in May:
3.3 days - Average rainfall days in June:
2.3 days
- Average rainfall days in July:
7.2 days - Average rainfall days in August:
7.2 days - Average rainfall days in September:
1.6 days - Average rainfall days in October:
3.4 days - Average rainfall days in November:
3.9 days - Average rainfall days in December:
3.5 days
The months with the highest number of rainy days are July and August (7.2 days).
The month with the least rainy days is September (1.6 days).
Average daylight / Average sunshine
Ar Rustaq, Oman
- Average daylight in January:
10h and 54min - Average daylight in February:
11h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 42min - Average daylight in May:
13h and 18min - Average daylight in June:
13h and 36min
- Average daylight in July:
13h and 24min - Average daylight in August:
12h and 54min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 36min - Average daylight in November:
11h and 0min - Average daylight in December:
10h and 42min
The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 42min).
- Average sunshine in January:
7h and 30min - Average sunshine in February:
9h and 24min - Average sunshine in March:
9h and 42min - Average sunshine in April:
11h and 36min - Average sunshine in May:
12h and 6min - Average sunshine in June:
12h and 12min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
12h and 12min - Average sunshine in September:
11h and 36min - Average sunshine in October:
7h and 36min - Average sunshine in November:
7h and 36min - Average sunshine in December:
7h and 36min
The months with the most sunshine are June and August (Average sunshine: 12h and 12min).
The month with the least sunshine is January (Average sunshine: 7h and 30min).
Average sunshine days
Ar Rustaq, Oman
- Average sunshine days in January:
27.8 days - Average sunshine days in February:
25.6 days - Average sunshine days in March:
25.3 days - Average sunshine days in April:
22.8 days - Average sunshine days in May:
26.5 days - Average sunshine days in June:
26.8 days
- Average sunshine days in July:
22.7 days - Average sunshine days in August:
22.5 days - Average sunshine days in September:
28.1 days - Average sunshine days in October:
27.3 days - Average sunshine days in November:
25.5 days - Average sunshine days in December:
27.4 days
The month with the most sunshine days is September (28.1 days).
The month with the least sunshine days is August (22.5 days).
Average UV index
Ar Rustaq, Oman
The months with the highest UV index are April, May, June, July and August (UV index 8).
The months with the lowest UV index are January and December (UV index 5).
Average cloud cover
Ar Rustaq, Oman
The month with the most cloud cover is July (Cloud cover 13).
The month with the least cloud cover is September (Cloud cover 4).
Average visibility
Ar Rustaq, Oman
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
