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Casablanca weather by month: averages, rainfall & climate trends

Morocco's great Atlantic port has a surprisingly mild, even climate for North Africa, kept cool and damp by the ocean current that sweeps down the coast. Casablanca weather by month: average temperatures, rainfall, records and how the climate has changed since 1940.

Today vs average

−3.5°Chigh well below average

22° / 19°Today
25° / 17°Average
see today in detail →

How it's changed

+1.0°Caverage temperature, 2016–2025 vs 1940–1949average temperature vs 1940–4944days above 30°C a year now (2016–2025) · 41 in the 1940sdays above 30°C · 41 in the 1940s+1.0°C vs the 1940s · see how it's changed →
Weather by montha typical year, averaged over the full recordJanuary, rain 49 mmhigh 18°low 9°February, rain 48 mmhigh 19°low 10°March, rain 46 mmhigh 20°low 11°April, rain 35 mmhigh 22°low 13°May, rain 18 mmhigh 24°low 15°June, rain 5 mmhigh 27°low 18°July, rain 1 mmhigh 29°low 20°August, rain 2 mmhigh 29°low 20°September, rain 11 mmhigh 28°low 19°October, rain 33 mmhigh 25°low 16°November, rain 53 mmhigh 21°low 13°December, rain 56 mmhigh 19°low 10°wettest month December, 56 mm · 355 mm a yearsee month by month →

Right now

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

Right now

20.2°

23°feels like
91%humidity
19°dew point
3 km/hfrom W
UV index0.0
sunrise07:37sunset18:53day length11h 16m
TodayThunderstorm22°19°
MonPartly cloudy23°17°
TueClear24°17°
WedPartly cloudy23°18°
ThuOvercast22°17°
FriOvercast21°18°
SatClear23°17°

On this date: October 18

Today (forecast)
22° / 19°
Average for October 18
25° / 17°

High well below average · −3.5°C

  • Record high: 32.1° · 1964
  • Record low: 12.3° · 1975
  • One year ago: 28° / 18°

Every October 18 in history, coldest to hottest

▲ Daily highs▼ Daily lows

Dots show daily highs (top) and lows (bottom) for each October 18 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 Casablanca is sampled from the ECMWF ERA5 reanalysis at 33.59°N, 7.61°W, with daily records since 1940.

Coordinates
33.59°N, 7.61°W
Time zone
Africa/Casablanca
Period
1940–2026
Data source
ERA5 (ECMWF)

Last 30 days

29 of the last 31 days were warmer than the historical average for that date. Average difference: +1.9°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, showing 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: a typical year, from the full record.

Climate overview

Casablanca lies on the Atlantic coast of Morocco, on the Chaouia plain in the centre-west of the country. The cool Canary Current running offshore tempers its hot-summer Mediterranean climate (Köppen Csa, edging toward semi-arid), holding summers milder than the latitude alone would suggest. The effect is close to that of coastal Los Angeles: warm rather than scorching summers, gentle winters, and a strong marine influence.

Rain is modest and falls almost entirely in the cooler half of the year, from autumn into early spring, while summers stay dry. The ocean holds the daily and seasonal swings narrow, sparing the city the desert heat of the interior as well as any genuine cold. Casablanca's climate ends up among the gentlest anywhere on the North African coast.

The year peaks in August, at around 29.2°C by mid-afternoon, with nights around 20.0°C. In a typical recent year, around 45 days reach 30°C or more. The coolest month is January, when afternoons reach about 17.6°C and overnight lows sit around 9.1°C. Frost is essentially unknown.

In total, Casablanca averages about 355 mm of precipitation a year; December is usually the wettest month (56 mm) and July the driest (1 mm).

The record here starts in 1940, and since then the annual mean in Casablanca has climbed 1.0°C from the first ten years to the last ten. The last decade has also run drier, about 21% below the long-term precipitation average.

Sources:en.wikipedia.orgbritannica.commarocmeteo.ma

Climate graph (climograph)

August is the warmest month, January the coolest: a yearly swing of 11°C. Wettest month: December (~56 mm). Whole year averages ~355 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).

Rainy days by month

About 43 rainy days a year: most in December (~7), fewest in July (almost none).

Bars = average number of days with ≥ 2 mm per month. Hover for the monthly rainfall total.

Monthly wind

Average daily peak wind at 10 m, by month.

Monthly solar energy

Average daily incoming solar energy in megajoules per square metre: the record's own proxy for how sunny the month is.

Casablanca 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 lowRainRainy daysDaylightRecord highRecord low
January17.6°9.1°49 mm610.0 h30.0° (2024)−0.7° (2005)
February18.6°10.0°48 mm610.8 h35.0° (2024)1.6° (2012)
March20.5°11.5°46 mm611.8 h36.6° (2005)3.9° (2011)
April21.8°12.7°35 mm512.8 h36.2° (2024)5.0° (1954)
May24.2°15.0°18 mm213.7 h41.4° (2017)7.6° (1991)
June26.6°17.8°5 mm014.2 h42.7° (2023)11.8° (1971)
July29.0°19.6°1 mm014.0 h45.2° (1967)13.9° (1977)
August29.2°20.0°2 mm013.2 h44.1° (1988)14.2° (1974)
September27.7°18.9°11 mm112.2 h40.5° (1970)10.9° (1974)
October25.3°16.4°33 mm411.1 h37.7° (2014)7.5° (1974)
November21.5°12.9°53 mm610.2 h33.1° (1985)4.8° (1943)
December18.6°10.3°56 mm79.8 h29.4° (1985)2.2° (1980)

How it's changed

Year-by-year signals from 1940 to today.

Climate stripes

Annual mean shifted from 1940–1949 to 2016–2025 by +1.0°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: +0.16°C per decade.

One point per year, showing 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: +0.17°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: 40.9 early in the record → 44.4 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 1967, all-time low in 2005: 45.2°C / −0.7°C.

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

Annual rainfall

~355 mm/year on average. Last decade: −21% vs that average. Long-term trend: −9 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, about 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).

Frequently asked questions about Casablanca

Which is the warmest month in Casablanca?
On long-term average, the warmest month in Casablanca is August (mean daily temperature of about 24.3°C) and the coolest is January (about 13.1°C).
How does today's temperature in Casablanca compare to the historical average?
On October 18, 2026, Casablanca is forecast to reach a high of 21.7°C and a low of 18.5°C. The long-term average for this date (the full record since 1940) is a high of 25.2°C and a low of 16.5°C, so today's high is 3.5°C cooler than that average.
How much has Casablanca warmed since 1940?
Comparing the first decade of the record (1940–1949) with the most recent (2016–2025), the annual mean temperature in Casablanca is about 1.0°C warmer.
How much does it rain in Casablanca?
Casablanca receives about 355 mm of precipitation per year on long-term average, with December typically the wettest month.
What is the average temperature in Casablanca?
Over the full record (since 1940), the annual mean temperature in Casablanca is about 18.7°C. The warmest month is August and the coolest is January.
What are the average temperatures in Casablanca by month?
Average daily highs and lows for each month in Casablanca (°C, full record since 1940): January 18°/9°, February 19°/10°, March 20°/11°, April 22°/13°, May 24°/15°, June 27°/18°, July 29°/20°, August 29°/20°, September 28°/19°, October 25°/16°, November 21°/13°, December 19°/10°.
What is the weather like in Casablanca in summer?
Summer in Casablanca (June to August) is dry and warm. Expect 27–29°C by day and 18–20°C at night, with August the warmest month. Hardly any rain falls.
What is the weather like in Casablanca in winter?
December to February is winter in Casablanca, and it is mild. Daytime highs sit at 18–19°C and nights at 9–10°C; January is the coldest month. Rain falls on about 6 days a month, adding up to around 51 mm. It is the wettest season of the year.
What is the weather like in Casablanca in spring?
March to May is spring in Casablanca, and it is pleasantly warm. It warms from 20°C by day and 11°C at night in March to 24°C and 15°C in May. Rain eases through the season: 6 rainy days and 46 mm in March, 2 days and 18 mm in May.
What is the weather like in Casablanca in autumn?
Autumn in Casablanca (September to November) is pleasantly warm. September is still 28°C by day and 19°C at night; by November it is down to 21°C and 13°C. Rain rises from 11 mm on 1 day in September to 53 mm on 6 days in November.
How many days a year does it rain in Casablanca?
On long-term average, Casablanca has about 43 days a year with at least 2 mm of rain or snow. The annual total is roughly 355 mm.

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