Hottest (avg)
#2 / 12
One of the warmer months.
May in context
How it compares to the rest of the year in Muscat.
Wettest (avg)
#11 / 12
One of the drier months.
Daylight Hours
#3 / 12
Long daylight hours.
Windiest (avg)
#1 / 12
The breeziest month of the year.
Highest UV
#3 / 12
UV runs high compared with most months.
Most Humid
#12 / 12
One of the less humid months.
Monthly climate breakdown
A detailed look at the typical climate conditions for May.
Thermal profile
Temperature
Typical daytime high
- Nighttime low
-
- Feels like (avg)
-
Light window
Sunshine
13.3 h
Average daylight
- UV index (max)
- 9
- Typical sun hours
- 05:24 - 18:40
Wet-day pattern
Rain & Snow
Typical rainfall
- Rainy days
- 0 days
- Cloud cover (avg)
- 11%
Air feel
Humidity & Wind
39%
Average humidity
- Wind (avg)
-
- Wind (max gusts)
-
Historical daily baseline
Daily climate explorer
Pick a day to inspect the usual conditions through May in Muscat. Based on a 30-year historical climate baseline, not a forecast.
Primary control
Select a day
Scroll to compare daily conditions. The summary updates with your selection.
Secondary context
Monthly trend
Median daytime highs across the month, with a softer low line.
Median temperatureMedian lowTypical range
Day 15 selected for May. Temperature 36.8°C.
Historical disruption baseline
Typical disruptions in May
Based on 30 years of historical data, these are the disruption patterns most likely to affect plans in May.
Heat High impact
Hot days Measures: Hot days (>=30C). Observed about 100% of days (31.0 days/month) in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
31.0 days / month
- Share of days
- ~100% of days
- Upper edge
- Up to ~41°C (P95)
Why this matters
Hot days are possible on ~31 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat High impact
Hot feels-like days Measures: Hot feels-like days (>=32C). Observed about 100% of days (30.9 days/month) in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
30.9 days / month
- Share of days
- ~100% of days
- Upper edge
- Up to ~43°C (P95)
Why this matters
Feels-like heat >=32C is possible on ~31 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat High impact
Very hot feels-like Measures: Very hot feels-like days (>=35C). Observed about 95% of days (29.5 days/month) in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
29.5 days / month
- Share of days
- ~95% of days
- Upper edge
- Up to ~43°C (P95)
Why this matters
Very hot feels-like conditions are possible on ~29 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat High impact
Very hot days Measures: Very hot days (>=35C). Observed about 81% of days (25.1 days/month) in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
25.1 days / month
- Share of days
- ~81% of days
- Upper edge
- Up to ~41°C (P95)
Why this matters
Very hot days are possible on ~25 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat High impact
Heat stress risk Measures: High heat stress days. Observed about 35% of days (10.7 days/month) in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
10.7 days / month
- Share of days
- ~35% of days
- Upper edge
- Up to ~44°C (P95)
Why this matters
Heat stress is possible on ~11 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Humidity High impact
Muggy days Measures: Muggy days (dew point >=20C). Observed about 19% of days (5.8 days/month) in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
5.8 days / month
- Share of days
- ~19% of days
- Upper edge
- Up to ~24°C (P95)
Why this matters
Muggy conditions are possible on ~6 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Show all disruptions (11 more)
Heat High impact
Extreme heat days Measures: Extreme heat days (>=40C). Observed about 10% of days (3.1 days/month) in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
3.1 days / month
- Share of days
- ~10% of days
- Upper edge
- Up to ~44°C (P95)
Why this matters
Extreme heat is possible on ~3 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat Moderate
Feels-like heatwave Measures: Feels-like heatwave runs (>=3 days). Observed about 1.0 days/month in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
1.0 days / month
- Share of days
- —
- Upper edge
- Up to ~41°C (P95)
Why this matters
Feels-like heatwave runs are possible on ~1 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat Moderate
Heatwave run Measures: Heatwave runs (>=3 hot days). Observed about 1.0 days/month in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
1.0 days / month
- Share of days
- —
- Upper edge
- Up to ~38°C (P95)
Why this matters
Heatwave runs are possible on ~1 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat Minor
Warm nights Measures: Warm nights (min >=22C). Observed about 99% of days (30.8 days/month) in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
30.8 days / month
- Share of days
- ~99% of days
- Upper edge
- Up to ~32°C (P95)
Why this matters
Warm nights are possible on ~31 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Heat Minor
Hot nights Measures: Hot nights (min >=25C). Observed about 93% of days (28.9 days/month) in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
28.9 days / month
- Share of days
- ~93% of days
- Upper edge
- Up to ~32°C (P95)
Why this matters
Hot nights are possible on ~29 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Wind Minor
Gusty days Measures: Gusty days (>=40 km/h). Observed about 39% of days (12.0 days/month) in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
12.0 days / month
- Share of days
- ~39% of days
- Upper edge
- Up to ~53km/h (P95)
Why this matters
Gusty conditions are possible on ~12 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Humidity Minor
Humid days Measures: Humid days (dew point >=18C). Observed about 35% of days (10.9 days/month) in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
10.9 days / month
- Share of days
- ~35% of days
- Upper edge
- Up to ~23°C (P95)
Why this matters
Humid conditions are possible on ~11 days. Comfort and pace can drop quickly, so plan shorter outdoor blocks with air-conditioned backup stops.
Cloud Minor
Cloudy days Measures: Cloudy days (cloud cover >=60%). Observed about 4% of days (1.4 days/month) in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
1.4 days / month
- Share of days
- ~4% of days
- Upper edge
- Up to ~95% (P95)
Why this matters
Cloudy skies are possible on ~1 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Rain Minor
Wet days Measures: Wet days (>=0.1mm). Observed about 3% of days (0.8 days/month) in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
0.8 days / month
- Share of days
- ~3% of days
- Upper edge
- Up to ~2.4mm (P95)
Why this matters
Measurable rain is possible on ~1 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Cloud Minor
Mostly cloudy days Measures: Mostly cloudy days (cloud cover >=80%). Observed about 2% of days (0.7 days/month) in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
0.7 days / month
- Share of days
- ~2% of days
- Upper edge
- Up to ~97% (P95)
Why this matters
Mostly cloudy skies are possible on ~1 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Humidity Minor
Oppressive humidity Measures: Oppressive humidity days (dew point >=24C). Observed about 1% of days (0.2 days/month) in May. Historical risk signal only, not a day-by-day forecast.
Likely frequency
0.2 days / month
- Share of days
- ~1% of days
- Upper edge
- Up to ~25°C (P95)
Why this matters
Oppressive humidity is possible on ~0 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Travel planning FAQ
Frequently asked questions
Quick answers to the weather questions you ask the most.
Is May a good time to visit Muscat?
Typical May days in Muscat reach highs of 37°C (99°F) with nights around 28°C (82°F). It usually feels very hot by day and warm after dark. It is one of the drier months, which suits outdoor exploring and sightseeing.
What are temperatures like in May?
In May, you can usually expect highs of 37°C (99°F) and lows near 28°C (82°F). That means very hot days and warm nights, so pack layers you can add or remove.
How much does it rain in May?
Rainfall in May averages 1 mm (0.04 in) across roughly 0 days. Overall it is a mostly dry time of year, so showers are usually brief rather than all-day downpours.
How many hours of daylight are there in May?
You can expect about 13 hours of daylight in May. Sunrise is typically around 05:24 and sunset near 18:40. You get long days with comfortable amounts of daylight.
How strong is the sun in May?
UV levels frequently reach very high levels (around 9), so strong sun protection is essential, especially around midday.
Is it windy in May?
In May, average wind speeds are around 10 km/h (6 mph), with gusts on the windiest days reaching about 47 km/h (29 mph). On the ground, it is it often feels breezy, especially in more exposed spots or along the coast.