Climate and monthly weather forecastRuwi, Oman
Climate and monthly weather forecast
The climate of Ruwi
Located in the heart of Oman, Ruwi is classified under the Köppen climate classification as BWh, a subtropical desert. The city's geographical position near the coast but shielded from the sea by a ridge of hills contributes to its weather pattern. Weather data reveals a year-round pattern marked by consistently high temperatures and a relatively low level of rainfall. Variations in weather parameters are apparent over the course of the year, yet remain minimal.Average monthly temperatures in Ruwi vary from 19°C (66.2°F) to 31.5°C (88.7°F), with a range of from 19°C (66.2°F) to 36.6°C (97.9°F) for high temperatures and from 20.1°C (68.2°F) to 31.5°C (88.7°F) for low temperatures. Rainfall in Ruwi is sparse and irregular, with a yearly distribution varying from no rainfall in September to a peak of 8mm (0.31") in June. It is noteworthy to mention that the days with rainfall in Ruwi are also sporadic, ranging from no rainy days in September to 3.6 rainy days in March.
Humidity levels fluctuate from 42%, in May, to as high as 59% in January. In terms of sun exposure, Ruwi captures an impressive average of from 10.9 daylight hours in January to 13.6 daylight hours in June, with sunshine hours ranging from 7.5 hours in January and December to 12.3 hours in May, June, and August.
The best time to visit Ruwi
Visitors seeking to experience Ruwi at its best should consider scheduling their trip between November to March. During these months, the average temperatures hover between 23.4°C (74.1°F) to 28.1°C (82.6°F), offering a more comfortable climate for touring and outdoor activities. Although these months also register the highest number of rainy days, rainfall remains minimal and unlikely to disrupt plans. Additionally, the winter daylight hours are plentiful, and the intensity of UV radiation is relatively moderate, enhancing the overall quality of the visit.The worst time to visit Ruwi
May to September mark the peak of summer in Ruwi, with temperatures soaring up to an average high of 36°C (96.8°F). The extreme heat can be overwhelming for visitors not accustomed to such weather conditions. During these months, it is common to experience days with zero rainfall, which also contribute to the enduring heat and dryness. Therefore, these months are arguably not the best time to visit, especially for those intolerant to high temperatures and low humidity.Spring weather in Ruwi
Spring, spanning from March to May, greets Ruwi with a rapid rise in average temperatures, from 27.8°C (82°F) in March to 36°C (96.8°F) in May. The high temperature comes about hand in hand with low humidity, which decreases gradually from 51% in March to 42% in May. Concurrently, the daylight hours extend from 12 hours in March to 13.3 hours in May, and the city enjoys from 9.8 hours to 12.3 hours of sunshine per day. Rainfall throughout spring remains minimal, making these months ideal for outdoor excursions.Summer weather in Ruwi
Ruwi experiences an intense summer from June to September, characterized by high temperatures, high UV index, and max number of daylight and sunshine hours. Peak temperatures occur in June, with the monthly average recorded as 36.6°C (97.9°F). Marginally lower temperatures are noted from July to September ranging between 34.1°C (93.4°F) and 35.7°C (96.3°F). Humidity levels begin to rise again, with the highest noted at 57% in August. Despite the humidity, these months register significantly low rainfall, with June receiving the highest volume of 8mm (0.31"), marking a unique summer weather pattern.Autumn weather in Ruwi
Autumn, from October to November, brings relief from summer's scorching heat. The temperatures cool down, ranging between 32.5°C (90.5°F) and 28.1°C (82.6°F). Humidity levels remain more or less consistent at 55% in both months. Additionally, rainfall starts to pick up gradually from just 1mm (0.04") in October to 6mm (0.24") in November. Days continue to shorten, with daylight hours reducing from 11.6 hours in October to 11 hours in November.Winter weather in Ruwi
The winter months, from December to February, showcase the coldest temperatures in Ruwi, with an average varying between 19°C (66.2°F) in January and 24.7°C (76.5°F) in December. January also records the highest humidity at 59%. However, the term "coldest" is relative, as the climate remains comfortably warm by most standards. With daylight hours ranging from 10.7 hours to 10.9 hours and UV index dropping to 6, winter provides a climate more mellow yet amenable for visitors. It also marks the period with the highest rainfall, although the average rainfall of 7mm (0.28") in January is considerably low compared to other regions.Weather in January
Despite showing the lowest recorded temperatures from 19°C (66.2°F) to 23.4°C (74.1°F), January presents comfortable conditions for outdoor activities in Ruwi, Oman. Noticeably warmer days than in December coupled with visible sunbeams accentuate the cool breath of breezes. Weather in January »Weather in February
Featuring temperatures from 20.1°C (68.2°F) to 24.8°C (76.6°F), February in Ruwi, Oman, signals the continuous rise in mercury levels from January. With an average of 11.4 daylight hours and mild winter breezes, days feel somewhat longer and brighter. Weather in February »Weather in March
Experiencing temperatures from 23°C (73.4°F) to 27.8°C (82°F), March marks a notable shift in the climatological pattern in Ruwi, Oman. The transitional nature of weather becomes visible with a reduction in relative humidity to 51%, which changes the feel of the air. Weather in March »Weather in April
April's average temperature ranges from 26.9°C (80.4°F) to 31.8°C (89.2°F), marking the official onset of summer in Ruwi, Oman. With 12 daylight hours, clear skies, and higher UV Index of 8, precautionary measures for skin protection during midday are noteworthy. Weather in April »Weather in May
Notably, increasing to 30.7°C (87.3°F) to 36°C (96.8°F), May temperatures in Ruwi, Oman, sail on the high side. Longer days coupled with abundant sunshine introduce the city to an intensified summer season. Remarkably, the UV Index climbs to 9, making it the highest throughout the year, hence, extra caution against sun-exposure becomes paramount. Weather in May »Weather in June
June temperature extremes from 31.5°C (88.7°F) to 36.6°C (97.9°F) exhibit the city's hottest climate. In Ruwi the summer season reaches its peak, displaying the highest recorded temperatures of the year. Erratic weather patterns, however, are almost absent, and predictability of weather remains intact. Weather in June »Weather in July
July sees temperatures fluctuating between 31°C (87.8°F) and 35.7°C (96.3°F), indicating a slight drop from the previous month. With Ruwi, Oman experiencing elongated daylight hours of 13.4 hours, oftentimes, locals resort to indoor activities to escape the midday heat. Weather in July »Weather in August
August average temperature records range from 29.8°C (85.6°F) to 34.4°C (93.9°F), exhibiting slight relent in Ruwi, Oman's summer heat. Extended sunshine hours and high UV index make afternoons intensely hot, but the heat is partially alleviated by evening breezes. Weather in August »Weather in September
September witnesses a further decrease in temperatures from 28.7°C (83.7°F) to 34.1°C (93.4°F), signaling the impending end of Ruwi, Oman's hot season. Marking the onset of the post-summer phase, the climate starts to cool down, with a recorder zero rainfall over the month. Weather in September »Weather in October
October in Ruwi, Oman observes temperatures ranging from 27.1°C (80.8°F) to 32.5°C (90.5°F), welcoming pleasant weather after the scorching summer season. As the month progresses, a decrease in daylight hours and increased wind speed contribute to creating a comfortable atmosphere. Weather in October »Weather in November
With temperatures hovering from 23.5°C (74.3°F) to 28.1°C (82.6°F), November suits the tastes of winter enthusiasts in Ruwi, Oman. Shortening daylight hours, moderating warmth, a drop in the UV index to 6, and an increase in rainfall to 6mm (0.24"), it marks a departure from the summer pattern. Weather in November »Weather in December
Arriving with temperatures spiking from 20.5°C (68.9°F) to 24.7°C (76.5°F), December is the coldest month in Ruwi, Oman. It becomes more receptive to the winter chill, with early dusk and fewer daylight hours signaling shorter days ahead. Weather in December »Updated: Feb 7, 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
The coldest period in Ruwi, Oman, is January, when temperatures fluctuate between an average high of 23.4°C (74.1°F) and a low of 19°C (66.2°F).
January is the most humid month, with an average relative humidity of 59%.
In Ruwi, during the entire year, the rain falls for 21.4 days and collects up to 43mm (1.69") of precipitation.
January and December, with an average of 7.5h of sunshine, are months with the least sunshine.
The months with the lowest UV index in Ruwi are January, February, November and December, with an average maximum UV index of 6.
May is the least humid month in Ruwi, Oman, with an average relative humidity of 42%.
The months with the most sunshine are May and August, with an average of 12.3h of sunshine.
With an average maximum UV index of 9, May is the month with the highest UV index.
The temperatures in Ruwi, Oman, reach their highest averages in June, with highs of 36.6°C (97.9°F) and lows of 31.5°C (88.7°F).
The month with the most rainfall is June, when the rain falls for 0.4 days and typically aggregates up to 8mm (0.31") of precipitation.
The month with the longest days in Ruwi is June, with an average of 13h and 36min of daylight.
September is the only month when rain does not fall.
Months with rainfall are January through August, October through December.
December has the shortest days of the year in Ruwi, Oman, with an average of 10h and 42min of daylight.
Ruwi, Oman, does not observe Daylight Saving Time (DST). +04 timezone is used throughout the entire year.
Average temperature
Ruwi, Oman
The warmest month (with the highest average high temperature) is June (36.6°C).
The month with the lowest average high temperature is January (23.4°C).
The month with the highest average low temperature is June (31.5°C).
The coldest month (with the lowest average low temperature) is January (19°C).
Average pressure
Ruwi, Oman
- Average pressure in January:
1017.3mbar - Average pressure in February:
1015.5mbar - Average pressure in March:
1013mbar - Average pressure in April:
1009.9mbar - Average pressure in May:
1005.8mbar - Average pressure in June:
1000mbar
- Average pressure in July:
997.9mbar - Average pressure in August:
1000.4mbar - Average pressure in September:
1005.2mbar - Average pressure in October:
1011.2mbar - Average pressure in November:
1015.1mbar - Average pressure in December:
1017.1mbar
The month with the highest atmospheric pressure is January (1017.3mbar).
The month with the lowest atmospheric pressure is July (997.9mbar).
Average wind speed
Ruwi, Oman
- Average wind speed in January:
10.5km/h - Average wind speed in February:
11.6km/h - Average wind speed in March:
11.5km/h - Average wind speed in April:
10.9km/h - Average wind speed in May:
11.6km/h - Average wind speed in June:
11.5km/h
- Average wind speed in July:
10.9km/h - Average wind speed in August:
10.9km/h - Average wind speed in September:
9.5km/h - Average wind speed in October:
9.5km/h - Average wind speed in November:
9.7km/h - Average wind speed in December:
9.7km/h
The windiest months (with the highest average wind speed) are February and May (11.6km/h).
The calmest months (with the lowest average wind speed) are September and October (9.5km/h).
Average humidity
Ruwi, Oman
The month with the highest relative humidity is January (59%).
The month with the lowest relative humidity is May (42%).
Average rainfall
Ruwi, Oman
The wettest month (with the highest rainfall) is June (8mm).
The driest month (with the least rainfall) is September (0mm).
Average rainfall days
Ruwi, Oman
- Average rainfall days in January:
3.4 days - Average rainfall days in February:
1.5 days - Average rainfall days in March:
3.6 days - Average rainfall days in April:
2.9 days - Average rainfall days in May:
0.9 days - Average rainfall days in June:
0.4 days
- Average rainfall days in July:
1 days - Average rainfall days in August:
1.5 days - Average rainfall days in September:
0 days - Average rainfall days in October:
0.8 days - Average rainfall days in November:
2.9 days - Average rainfall days in December:
2.5 days
The month with the highest number of rainy days is March (3.6 days).
The month with the least rainy days is September (0 days).
Average daylight / Average sunshine
Ruwi, 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:
8h and 48min - Average sunshine in March:
9h and 48min - Average sunshine in April:
12h and 0min - Average sunshine in May:
12h and 18min - Average sunshine in June:
12h and 12min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
12h and 18min - Average sunshine in September:
11h and 42min - Average sunshine in October:
8h and 6min - Average sunshine in November:
7h and 36min - Average sunshine in December:
7h and 30min
The months with the most sunshine are May and August (Average sunshine: 12h and 18min).
The months with the least sunshine are January and December (Average sunshine: 7h and 30min).
Average sunshine days
Ruwi, Oman
- Average sunshine days in January:
26.8 days - Average sunshine days in February:
26.2 days - Average sunshine days in March:
27.4 days - Average sunshine days in April:
27.2 days - Average sunshine days in May:
29.5 days - Average sunshine days in June:
29.3 days
- Average sunshine days in July:
29.6 days - Average sunshine days in August:
29.4 days - Average sunshine days in September:
30 days - Average sunshine days in October:
30 days - Average sunshine days in November:
26.5 days - Average sunshine days in December:
27.3 days
The months with the most sunshine days are September and October (30 days).
The month with the least sunshine days is February (26.2 days).
Average UV index
Ruwi, Oman
The month with the highest UV index is May (UV index 9).
The months with the lowest UV index are January, February, November and December (UV index 6).
Average cloud cover
Ruwi, Oman
The month with the most cloud cover is March (Cloud cover 9).
The month with the least cloud cover is September (Cloud cover 2).
Average visibility
Ruwi, 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).
