Ḩarmah Weather in May (1981–2025)

📍 25.93°N, 45.33°E •
📊

May at a Glance in Ḩarmah

(1981–2025)
Avg High
🔥
38.6°C
Avg Low
❄️
22.6°C
Avg Temp
🌡️
30.6°C
Avg Rain
🌧️
2 mm
Avg Humidity
💧
18%
Avg Wind
🌬️
3.1 m/s
Avg Solar
☀️
7.3
kWh/m²/day
vs Annual
📈
+5.5°C
temp difference
🔥Hot afternoons🌙Mild mornings☀️Very sunny💧Dry month💨Breezy🏜️Low humidity

Ḩarmah May Weather Overview

May is one of the warmer months of the year in Ḩarmah, with average highs near 38.6°C and lows around 22.6°C (mean 30.6°C). It is about average for rainfall, averaging 2 mm of rainfall and 18% relative humidity across the period.

Ḩarmah May Temperature History (1981–2025)

Range

May is one of the warmer months of the year in Ḩarmah. Across 45 years of records, the warmest Mays in Ḩarmah were 2012 and 2017 — when the month averaged 32.1°C — while the coldest was 1993 at 28.8°C. Typical May days reach 38.6°C with nights near 22.6°C. The long-term trend is warming, about 0.2°C per decade.

1981–1985 vs 2021–2025

Avg Temp30.0°C→30.7°C+0.7°C
Max Temp37.9°C→38.9°C+1°C
Min Temp22.0°C→22.5°C+0.5°C

Trend (per decade)

Avg Temp+0.2°C/decade ↗
Max Temp+0.2°C/decade ↗
Min Temp+0.2°C/decade ↗

Distribution of Avg Temp

28.0°C–29.3°C2 yr (4%)
29.3°C–30.5°C17 yr (38%)
30.5°C–31.8°C22 yr (49%)
31.8°C–33.0°C4 yr (9%)

Ḩarmah May Rainfall History (1981–2025)

Range

May is about average for rainfall in Ḩarmah, averaging 2 mm of rainfall. The wettest May on record was 1993 with 16 mm, while the driest were 2018, 2021 and 2022, among others at 0 mm.

Ḩarmah May Humidity History (1981–2025)

Range

Relative humidity in Ḩarmah during May averages 18%. The most humid May was 1983 at 34%, and the least humid was 2002 at 13%.

Ḩarmah May Solar History (1981–2025)

Range

May receives about 7.3 kWh/m²/day of solar energy in Ḩarmah. The sunniest Mays were 2001 and 2004 at 8 kWh/m²/day, and the cloudiest was 1987 at 6.2.

Ḩarmah May Wind History (1981–2025)

Range

Average wind speed in Ḩarmah during May is 3.1 m/s. The windiest May was 1986 at 3.9 m/s, while the calmest was 2019 at 2.6 m/s.

What May Feels Like in Ḩarmah

🌅
Mild
Morning
🌞
Hot
Afternoon
🌆
Warm
Evening
Rain chanceVery Low
Outdoor comfort★★★☆☆

How May Ranks in Ḩarmah

🔥5th warmest month of the year
🌵6th driest month of the year
☀️4th sunniest month of the year

Ranked against the other 11 months using 1981–2025 averages.

Explore Ḩarmah Weather by Month

Ḩarmah May Averages by Decade

Metric1980s1990s2000s2010s2020sChange
Avg Temp30.3°C30.2°C30.8°C31.0°C30.6°C+0.3°C
Avg High38.3°C38.2°C39.1°C38.8°C38.8°C+0.5°C
Avg Low22.3°C22.2°C22.6°C23.2°C22.5°C+0.2°C
Avg Rain3 mm2 mm1 mm1 mm3 mm+0 mm

Extreme May Records in Ḩarmah

🔥Warmest May44.9°C1998
🧊Coldest May13.6°C2005
🌧️Wettest May16 mm1993
🏜️Driest May0 mm1982
🌬️Windiest May3.9 m/s1986

Key Insights for May

✅

May temperatures in Ḩarmah have risen by about 0.7°C between 1981–1985 and 2021–2025.

✅

May has ranged from a record low of 13.6°C (2005) to a record high of 44.9°C (1998).

✅

Rainfall in May is about average for rainfall, averaging 2 mm, with a wettest year of 16 mm.

Is May a Good Time to Visit Ḩarmah?

A good time to visit Ḩarmah

May is a good time to visit Ḩarmah, with days averaging 38.6°C and nights around 22.6°C (mean 30.6°C, warmer than Ḩarmah's yearly average) and low rainfall. November and March are marginally more temperate, but May still suits most travellers.

See Ḩarmah's complete weather history All 12 months side by side, 1981–2025 records, annual trends and long-term averages in one place. View full history →

Ḩarmah Weather in May — In Depth

☀️ May climate overview

May is one of the warmer months of the year in Ḩarmah, with average highs near 38.6°C and lows around 22.6°C (mean 30.6°C). It is about average for rainfall, averaging 2 mm of rainfall and 18% relative humidity across the period.

🌧️ Rain, humidity & wind in May

May averages 2 mm of rainfall in Ḩarmah, about average for rainfall compared with the rest of the year. The wettest May on record saw 16 mm (1993), and the driest just 0 mm (1982). Humidity sits around 18% and average wind speed is 3.1 m/s, with solar radiation averaging 7.3 kWh/m²/day.

📈 How May has changed

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 0.7°C. Daytime highs moved from 37.9°C to 38.9°C and overnight lows from 22°C to 22.5°C over the same span.
May Weather in Ḩarmah, Year by Year
🔥 warmest❄️ coldest🌧️ wettest
YearAvg HighAvg TempAvg LowHottest DayColdest DayRainfallHumidityWindSolar
202540.1°C31.7°C23.4°C44.6°C17.7°C2 mm15%3.3 m/s7.6
202438.1°C30.1°C22.1°C44.9°C15.6°C12 mm25%3.2 m/s7.5
202337.7°C30.0°C22.2°C42.6°C15.8°C3 mm24%3.5 m/s6.9
202238.6°C29.9°C21.2°C43.3°C16.8°C0 mm15%3.1 m/s7.3
202140.1°C31.9°C23.7°C44.1°C19.1°C0 mm13%2.8 m/s7.8
202037.9°C30.2°C22.5°C42.7°C16.6°C1 mm19%2.9 m/s7.3
201938.7°C31.1°C23.4°C42.7°C19.8°C1 mm19%2.6 m/s7.2
201838.3°C30.3°C22.3°C41.9°C17.8°C0 mm19%3.1 m/s7.3
201739.7°C32.1°C24.6°C43.7°C20.9°C0 mm18%3 m/s7.1
201639.2°C30.9°C22.6°C43.0°C17.7°C0 mm19%3.2 m/s7.8
201539.2°C31.6°C24.0°C44.1°C20.1°C0 mm17%3.1 m/s7.1
201438.4°C30.6°C22.8°C43.9°C18.3°C0 mm17%3.2 m/s7.5
201337.1°C29.0°C21.0°C42.2°C15.2°C0 mm22%3 m/s7.6
2012 🔥39.8°C32.1°C24.4°C43.1°C19.5°C0 mm15%3.3 m/s7.3
201139.1°C31.3°C23.4°C42.7°C16.7°C1 mm20%3.1 m/s7.4
201038.7°C30.9°C23.1°C43.4°C19.9°C7 mm23%3.3 m/s7.2
200939.7°C31.4°C23.2°C44.1°C17.3°C0 mm18%3.2 m/s7.2
200839.0°C30.9°C22.8°C43.3°C18.4°C1 mm16%3.2 m/s7.3
200739.3°C31.6°C23.8°C43.0°C19.1°C1 mm16%3.2 m/s7.4
200638.8°C31.2°C23.6°C42.4°C20.2°C0 mm19%3 m/s7.1
200537.6°C29.7°C21.8°C41.9°C13.6°C0 mm17%3 m/s7.4
200439.0°C30.2°C21.3°C43.5°C15.9°C0 mm14%3 m/s8
200339.1°C30.9°C22.7°C43.2°C16.4°C1 mm16%3.2 m/s7.3
200240.2°C31.0°C21.9°C44.0°C15.9°C0 mm13%3.4 m/s7.8
200139.1°C30.6°C22.1°C43.8°C18.1°C0 mm13%3.3 m/s8
200039.3°C31.0°C22.6°C44.1°C16.9°C6 mm16%2.7 m/s7.4
199939.7°C31.5°C23.3°C43.7°C19.7°C0 mm13%3.2 m/s7.8
199839.0°C30.7°C22.5°C44.9°C18.6°C0 mm18%2.8 m/s7.7
199736.7°C29.4°C22.2°C42.9°C17.7°C0 mm19%2.8 m/s7.1
199639.3°C31.3°C23.3°C42.8°C18.6°C1 mm16%2.7 m/s7.2
199538.0°C30.1°C22.1°C41.4°C16.2°C1 mm18%2.9 m/s7
199437.6°C30.4°C23.2°C44.1°C17.9°C0 mm21%3.2 m/s6.8
1993 ❄️ 🌧️36.4°C28.8°C21.2°C42.1°C15.4°C16 mm25%3 m/s7
199237.4°C29.3°C21.2°C41.5°C16.5°C0 mm19%3.2 m/s7.1
199137.8°C29.4°C21.1°C44.4°C15.7°C0 mm15%3 m/s6.8
199039.8°C31.0°C22.3°C43.7°C16.2°C0 mm15%3.1 m/s7.5
198938.6°C30.6°C22.6°C42.1°C19.7°C0 mm17%3.1 m/s7.3
198839.2°C30.6°C22.1°C43.4°C19.7°C0 mm14%3.1 m/s6.9
198739.2°C31.9°C24.6°C42.3°C20.9°C0 mm22%3.1 m/s6.2
198638.6°C29.9°C21.3°C44.3°C13.8°C5 mm19%3.9 m/s7
198537.9°C30.2°C22.5°C42.2°C19.6°C1 mm23%2.7 m/s7.1
198437.8°C29.5°C21.1°C43.0°C15.7°C0 mm19%3.3 m/s6.5
198337.0°C29.6°C22.1°C40.6°C17.1°C9 mm34%3.4 m/s—
198238.6°C30.8°C22.9°C42.3°C19.2°C0 mm22%3.4 m/s—
198138.2°C29.8°C21.3°C42.7°C15.3°C8 mm20%3.5 m/s—

Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.

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Ḩarmah May Weather — FAQ

What is the average temperature in Ḩarmah in May?▼

The average high in May is around 38.6°C with lows near 22.6°C (mean 30.6°C), based on 45 years of NASA POWER data.

Does it rain a lot in Ḩarmah in May?▼

May averages 2 mm of rainfall in Ḩarmah, about average for rainfall. The wettest on record was 16 mm in 1993.

What was the hottest May on record in Ḩarmah?▼

The hottest May reached 44.9°C in 1998. The coldest dipped to 13.6°C in 2005.

Has May in Ḩarmah gotten warmer over time?▼

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 0.7°C. Daytime highs moved from 37.9°C to 38.9°C and overnight lows from 22°C to 22.5°C over the same span.

Is May a good time to visit Ḩarmah?▼

May is one of the warmer months of the year in Ḩarmah and about average for rainfall, so plan for around 38.6°C daytime highs and 22.6°C at night.

Is May the coldest month in Ḩarmah?▼

Not quite — May is the 8th coolest month in Ḩarmah, averaging 30.6°C.

What should I pack for Ḩarmah in May?▼

For May in Ḩarmah, pack light, breathable clothing and sun protection, with typical highs of 38.6°C and lows of 22.6°C.

Is Ḩarmah humid in May?▼

Relative humidity in May averages 18% — relatively dry.

How windy is Ḩarmah in May?▼

Average wind speed in May is 3.1 m/s. The windiest May on record averaged 3.9 m/s (1986).

Which May had the most rainfall in Ḩarmah?▼

The wettest May on record was 1993 with 16 mm. On average, May sees 2 mm.

Where does this May weather data come from?▼

All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.

Other Ar Riyāḑ cities

Explore how the weather in Ḩarmah behaves each May, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for May specifically, along with year-by-year records and how the month has changed over the decades.