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Ras Al Khaimah weather by month — averages, rainfall & climate trends

Average temperatures and rainfall by month, a climate graph, today's conditions versus the long-term average, and how the climate has shifted since 1940 — all on one page for Ras Al Khaimah, United Arab Emirates.

Right now

What it's doing today vs the historical average for this date.
Clear

Right now

35.9°

42°feels like
58%humidity
26°dew point
8 km/hfrom SW
sunrise05:37sunset19:07day length13h 31m
TodayMostly clear44°35°
WedPartly cloudy41°33°
ThuMostly clear43°33°
FriClear42°33°
SatClear41°32°
SunClear41°32°
MonMostly clear43°33°

On this date — July 21

Today (forecast)
44° / 35°
Average for July 21
38° / 32°

Warmer than usual · 5.4°C above the average high

  • Record high: 42.3° · 2012
  • Record low: 29.1° · 1960
  • One year ago: 38.2°

Every July 21 in history — coldest to hottest

Daily highsDaily lows

Dots show daily highs (top) and lows (bottom) for each July 21 on record (n = 87). Outlined dots are today's forecast.

Area we sample

Each city's history comes from one ERA5 grid cell — about 28 km across, shown by the dashed box. Near mountains or coasts, conditions can vary across the cell.

Location & data

Historical weather for Ras Al Khaimah is sampled from the ECMWF ERA5 reanalysis at 25.79°N, 55.94°E, with daily records since 1940.

Coordinates
25.79°N, 55.94°E
Time zone
Asia/Dubai
Period
1940–2026
Data source
ERA5 (ECMWF)

Last 30 days

30 of the last 31 days were warmer than the historical average for that date. Average difference: +1.2°C.

Each bar is one day, from morning low to afternoon high. Warm-colored bars are days whose mean ran above average; cool bars ran below. The dot inside the bar is the daily mean. The shaded band is the typical 10–90% range expected for that date. Average = the day's mean temperature averaged across every year of record (1940–2026) for that calendar date.

This date over the years

One dot per year — the mean temperature on this calendar date. Dots are warmer or cooler than the long-term average (dashed line); the shaded band is the typical 10–90% range, and the highlighted dot is today's forecast. Based on ERA5 reanalysis — modelled estimates, not station readings.

Weather by month

Average temperatures and rainfall for each month — what a typical year looks like, from the full record.

Climate overview

Ras Al Khaimah has well-marked seasons, with 15.2°C between its warmest and coolest monthly means. July brings the year's peak warmth: daily means of 35.3°C, with afternoons typically reaching 38.2°C. At the other extreme, January averages 20.2°C, with typical overnight lows of 17.5°C.

Rain is a rare event here. The annual total in Ras Al Khaimah is just 107 mm or so, with January the most likely month to see any of it.

The record here starts in 1940, and since then the annual mean in Ras Al Khaimah has climbed 1.4°C from the first ten years to the last ten. That last decade has also been the warmest in the record.

Climate graph (climograph)

July is the warmest month, January the coolest — a yearly swing of 15°C. Wettest month: January (~29 mm). Whole year averages ~107 mm of rain.

Bars = average monthly rainfall (right axis). Lines = average daily high and low (left axis). Average = each month's value averaged across every year of record (1940–2026).

Monthly wind

Average daily peak wind at 10 m, by month.

Monthly solar energy

Average daily incoming solar energy in megajoules per square metre — a measured proxy for how sunny the month is.

Ras Al Khaimah month by month — what to expect

Typical conditions for each month, averaged across the full record (since 1940). Daylight is the time from sunrise to sunset. Record high/low are the most extreme values in the ERA5 dataset (modelled since 1940), so they can differ from official weather-station readings.

MonthAvg highAvg lowRainDaylightRecord highRecord low
January22.5°17.5°29 mm10.6 h28.7° (1991)10.6° (1950)
February23.6°18.0°20 mm11.1 h32.6° (2015)10.4° (1950)
March26.8°20.4°19 mm11.8 h36.5° (1998)12.4° (1992)
April31.1°24.2°7 mm12.6 h38.9° (2025)15.4° (1967)
May35.5°28.1°1 mm13.3 h42.2° (2009)20.5° (1967)
June37.8°30.4°0 mm13.6 h42.4° (2009)23.8° (1961)
July38.2°32.0°3 mm13.5 h42.6° (2012)27.0° (1977)
August38.1°32.0°0 mm12.9 h42.3° (2023)27.8° (1979)
September36.5°30.0°0 mm12.1 h40.2° (1949)25.5° (1941)
October33.5°27.0°1 mm11.4 h38.4° (2015)21.5° (1961)
November28.8°23.2°5 mm10.7 h34.8° (2021)17.6° (1949)
December24.5°19.6°22 mm10.4 h31.5° (1994)13.2° (1963)

How it has changed

Year-by-year signals from 1940 to today.

Climate stripes

Annual mean shifted from 1940–1949 to 2016–2025 by +1.4°C.

Each vertical stripe is one year. Color encodes how much that year's annual mean differed from the long-term average. Average = each year's annual mean compared to the average of all years (1940–2026). cooler ← → warmer

Annual mean temperature

Long-term trend: +0.21°C per decade.

One point per year — the temperature averaged across the whole year. The dashed line is the least-squares long-term trend. Based on ERA5 reanalysis — modelled estimates, not station readings.

Seasonal warming

Dec–Feb is warming fastest: +0.26°C per decade.

Each faint line is one three-month period's average per year; the bold dashed line is its long-term trend. Different parts of the year often warm at different rates. Based on ERA5 reanalysis — modelled estimates, not station readings.

Hot days vs frost days

Days ≥ 30°C per year: 218.5 early in the record → 227.5 recently. Frost days: 0 → 0.

Thin lines are raw yearly counts; thick lines are the smoothed trend that removes year-to-year noise. The hot-day threshold is auto-picked per city so the line actually moves. Average = a centered 5-year rolling average to smooth weather noise.

Yearly hot & cold extremes

All-time high in 2012, all-time low in 1950: 42.6°C / 10.4°C.

One point per year — the single hottest and coldest day recorded that year.

Annual rainfall

~107 mm/year on average. Last decade ran −5% vs that average. Long-term trend: 5 mm per decade.

One bar per year of total rainfall. Dashed line is the long-term average. Average = the average annual rainfall across every year of record (1940–2026).

Day-by-day grid

Each tiny square is one calendar day across the full record — ~30,000 days per city. Use the mode switch above the chart: Anomaly colors each day by how far it ran from the historical average for that date (red = warmer, blue = cooler), Daily mean temp shows the absolute mean temperature for the day (useful to see seasons and heatwaves), and Precipitation shows daily rainfall (useful to spot wet/dry seasons and droughts). Average = the long-term average for that calendar date (1940–2026).

Ras Al Khaimah — Frequently asked questions

Which is the warmest month in Ras Al Khaimah?
On long-term average, the warmest month in Ras Al Khaimah is July (mean about 35.3°C) and the coolest is January (about 20.2°C).
How does today's temperature in Ras Al Khaimah compare to the historical average?
On 2026-07-21, Ras Al Khaimah is forecast to reach a high of 43.8°C and a low of 34.6°C. The long-term average for this date (the full record since 1940) is a high of 38.4°C and a low of 32.5°C — today's high is 5.4°C warmer than that average.
How much has Ras Al Khaimah warmed since 1940?
Comparing the first decade of the record (1940–1949) with the most recent (2016–2025), the annual mean temperature in Ras Al Khaimah is about 1.4°C warmer.
How much does it rain in Ras Al Khaimah?
Ras Al Khaimah receives about 107 mm of precipitation per year on long-term average, with January typically the wettest month.
What is the average temperature in Ras Al Khaimah?
Over the full record (since 1940), the annual mean temperature in Ras Al Khaimah is about 28.6°C. The warmest month is July and the coolest is January.
What are the average temperatures in Ras Al Khaimah by month?
Average daily highs and lows for each month in Ras Al Khaimah (°C, full record since 1940): January 23°/18°, February 24°/18°, March 27°/20°, April 31°/24°, May 35°/28°, June 38°/30°, July 38°/32°, August 38°/32°, September 36°/30°, October 34°/27°, November 29°/23°, December 25°/20°.
How many days a year does it rain in Ras Al Khaimah?
On long-term average, Ras Al Khaimah has about 16 days a year with measurable rain, totalling roughly 107 mm.

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