Sidi Slimane climate
Sidi Slimane (Morocco) has a hot-summer Mediterranean climate (Köppen Csa). The average temperature over the year is 20 °C69 °F, and about 628 mm25 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Sidi Slimane climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 1763 | 745 | 1254 | 823.2 |
| Feb | 1966 | 745 | 1355 | 712.8 |
| Mar | 2271 | 949 | 1560 | 853.3 |
| Apr | 2476 | 1153 | 1864 | 602.4 |
| May | 2984 | 1458 | 2271 | 291.1 |
| Jun | 3594 | 1864 | 2679 | 50.2 |
| Jul | 38101 | 2069 | 2985 | 20.1 |
| Aug | 38101 | 2170 | 3086 | 30.1 |
| Sep | 3492 | 1967 | 2679 | 220.9 |
| Oct | 2984 | 1661 | 2272 | 732.9 |
| Nov | 2271 | 1152 | 1662 | 1104.3 |
| Dec | 1965 | 847 | 1356 | 873.4 |
| Year | 38101 | 745 | 2069 | 62825 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 78% | 51% | 2.8 | 10:06 |
| Feb | 77% | 50% | 3.7 | 10:54 |
| Mar | 74% | 52% | 4.8 | 11:53 |
| Apr | 70% | 53% | 5.8 | 13:00 |
| May | 63% | 46% | 6.7 | 13:56 |
| Jun | 53% | 29% | 7.6 | 14:26 |
| Jul | 47% | 23% | 7.7 | 14:14 |
| Aug | 47% | 24% | 7.0 | 13:25 |
| Sep | 55% | 34% | 5.6 | 12:20 |
| Oct | 62% | 42% | 4.2 | 11:15 |
| Nov | 71% | 48% | 3.1 | 10:19 |
| Dec | 76% | 49% | 2.6 | 9:52 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Sidi Slimane is like
The warmest month is August, with an average high of 38 °C101 °F and a low of 21 °C70 °F. The coldest is January, when highs average 17 °C63 °F and lows 7 °C45 °F. There is a clear seasonal cycle, with 17.7 °C31.9 °F between the average temperature of the warmest and the coolest month.
Annual precipitation is moderate at about 628 mm25 in. The wettest three-month stretch is November–January, which brings 44% of the annual total. Months with less than 20 mm0.8 in on average: June–August. The wettest month is November (110 mm4.3 in), the driest is July (2 mm0.1 in).
Relative humidity ranges from 47% in August to 78% in January. The clearest skies (lowest average cloud amount, 23%) are typical of July. Average wind speed near the ground ranges from 6 km/h (4 mph) in January to 9 km/h (6 mph) in July. Daylight lasts from about 9.9 hours in December to 14.4 hours in June.
Best time to visit Sidi Slimane
Based on these averages, the most comfortable months for sightseeing and outdoor activities are March–May and October: average highs of 22 °C71 °F to 29 °C84 °F with 29 mm1.1 in to 85 mm3.3 in of precipitation per month.
The most challenging month is August, which is hot, with average highs of 38 °C101 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Sidi Slimane
- Winter (December–February) — highs 1763 to 19 °C66 °F, lows 745 to 8 °C47 °F, about 80 mm3.1 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Spring (March–May) — highs 2271 to 29 °C84 °F, lows 949 to 14 °C58 °F, about 58 mm2.3 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 3594 to 38 °C101 °F, lows 1864 to 21 °C70 °F, about 3 mm0.1 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 2271 to 34 °C92 °F, lows 1152 to 19 °C67 °F, about 68 mm2.7 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
How Sidi Slimane compares
Compared with Khemisset, about 51 km to the south, Sidi Slimane is on average 2.7 °C4.9 °F warmer and receives 24% more precipitation (628 mm25 in vs 507 mm20 in). The difference is largest in July (4.2 °C7.5 °F warmer).
Of the 31 places in Morocco covered by World Climates, Sidi Slimane is the 7th warmest by annual mean temperature and the 5th wettest by annual precipitation. See all of them on the Morocco climate page.
Places in other countries with the most similar temperature and rainfall pattern: Chlef (Algeria, Csa), Relizane (Algeria, Csa) and Sevilla (Spain, Csa).
Nearby places
- Khemisset 51 km · 18 °C64 °F · 507 mm20 in
- Meknes 54 km · 18 °C65 °F · 608 mm24 in
- Kenitra 60 km · 19 °C66 °F · 490 mm19 in
- Ksar El Kebir 82 km · 20 °C69 °F · 806 mm32 in
- Rabat 88 km · 19 °C67 °F · 488 mm19 in
- Fes 89 km · 20 °C68 °F · 715 mm28 in
- Temara 98 km · 19 °C66 °F · 488 mm19 in
- Larache 105 km · 19 °C66 °F · 629 mm25 in
Frequently asked questions
What is the warmest month in Sidi Slimane?
August is the warmest month in Sidi Slimane, with an average high of 38 °C (101 °F) and an average low of 21 °C (70 °F).
What is the coldest month in Sidi Slimane?
January is the coldest month, with an average high of 17 °C (63 °F) and an average low of 7 °C (45 °F).
When does it rain the most in Sidi Slimane?
November is the wettest month with about 110 mm (4.3 in) of precipitation; July is the driest with about 2 mm (0.1 in).
What is the best time to visit Sidi Slimane?
Judging by long-term averages, the most comfortable months are March–May and October.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 163 m, while Sidi Slimane lies at about 37 m. Temperatures on this page were therefore adjusted by +0.8 °C1.5 °F using the standard lapse rate of 6.5 °C per 1,000 m.