Climate - Sal (Cape Verde)

The climate of the island of Sal is arid tropical, influenced by the north-east trade winds, and with little rainfall concentrated in the period July-October.
Temperatures are very stable, and fluctuate slightly in comparison with the average.

The average temperature of the coldest month (February) is of 21.9 °C (71.5 °F), that of the warmest month (September) is of 27.6 °C (81.6 °F). Here are the average temperatures.
Precipitation amounts to 160 millimeters (6.3 inches) per year: it is therefore at a desert level. It ranges from 1 mm (0 in) in the driest months (April, May, June) to 52 mm (2 in) in the wettest one (September). Here is the average precipitation.
The sea temperature ranges from 22 °C (22 °F) in February, March to 27 °C (27 °F) in September, October. Here are the average sea temperatures.
On average, there are around 2190 sunshine hours per year. Here are the average sunshine hours per day.

Sal - Weather by month

Based on the period 1991-2020
(January - February - March - April - May - June - July - August - September - October - November - December)

In January, the average temperature is of 22.2 °C (72 °F), with a minimum of 19.2 °C (66.5 °F) and a maximum of 25.2 °C (77.4 °F).
On the coldest nights of the month, the temperature usually drops to around 17 °C (62.5 °F). However, in January 2020, it dropped to 15.2 °C (59.4 °F).
On the warmest days of the month, the temperature usually reaches around 28 °C (82.5 °F). However, in January 2016, it reached 31.5 °C (88.7 °F).
Precipitation amounts to only 2 mm (0.1 in), distributed over 2 days.
On average, there are 185 hours of sunshine per month, i.e. 6 hours per day.
The average humidity is 69%.
The average wind speed is 24 kph (15 kph).
The average sea temperature is of 23 °C (73 °F).

In February, the coldest month of the year, the average temperature is of 21.9 °C (71 °F), with a minimum of 18.8 °C (65.8 °F) and a maximum of 25.1 °C (77.2 °F).
On the coldest nights of the month, the temperature usually drops to around 16.5 °C (61.5 °F). However, in February 1994, it dropped to 10.2 °C (50.4 °F).
On the warmest days of the month, the temperature usually reaches around 28.5 °C (83 °F). However, in February 2010, it reached 32.3 °C (90.1 °F).
Precipitation amounts to 21 mm (0.8 in), distributed over 2 days.
On average, there are 175 hours of sunshine per month, i.e. 6.5 hours per day.
The average humidity is 70%.
The average wind speed is 25 kph (16 kph).
The average sea temperature is of 22 °C (72 °F).

In March, the average temperature is of 22.2 °C (72 °F), with a minimum of 18.9 °C (66 °F) and a maximum of 25.5 °C (78 °F).
On the coldest nights of the month, the temperature usually drops to around 17 °C (62.5 °F). However, in March 2000, it dropped to 15.8 °C (60.4 °F).
On the warmest days of the month, the temperature usually reaches around 29 °C (84 °F). However, in March 2002, it reached 32 °C (89.6 °F).
Precipitation amounts to only 8 mm (0.3 in), and all occurs in one day.
On average, there are 200 hours of sunshine per month, i.e. 6.5 hours per day.
The average humidity is 70%.
The average wind speed is 25 kph (15 kph).
The average sea temperature is of 22 °C (71.5 °F).

In April, the average temperature is of 22.7 °C (73 °F), with a minimum of 19.6 °C (67.3 °F) and a maximum of 25.8 °C (78.5 °F).
On the coldest nights of the month, the temperature usually drops to around 17.5 °C (64 °F). However, in April 1992, it dropped to 14.2 °C (57.6 °F).
On the warmest days of the month, the temperature usually reaches around 29 °C (84.5 °F). However, in April 2001, it reached 32.8 °C (91 °F).
Precipitation amounts to only 1 mm (0 in), and all occurs in one day.
On average, there are 215 hours of sunshine per month, i.e. 7 hours per day.
The average humidity is 70%.
The average wind speed is 25 kph (16 kph).
The average sea temperature is of 22.5 °C (72 °F).

In May, the average temperature is of 23.5 °C (74 °F), with a minimum of 20.5 °C (68.9 °F) and a maximum of 26.5 °C (79.6 °F).
On the coldest nights of the month, the temperature usually drops to around 18.5 °C (65 °F). However, in May 1993, it dropped to 15.5 °C (59.9 °F).
On the warmest days of the month, the temperature usually reaches around 29 °C (84.5 °F). However, in May 2003, it reached 32 °C (89.6 °F).
Precipitation amounts to only 1 mm (0 in), distributed over 0 days.
On average, there are 205 hours of sunshine per month, i.e. 6.5 hours per day.
The average humidity is 72%.
The average wind speed is 26 kph (16 kph).
The average sea temperature is of 22.5 °C (72.5 °F).

In June, the average temperature is of 24.4 °C (76 °F), with a minimum of 21.5 °C (70.7 °F) and a maximum of 27.3 °C (81.2 °F).
On the coldest nights of the month, the temperature usually drops to around 19.5 °C (67.5 °F). However, in June 1994, it dropped to 15.6 °C (60.1 °F).
On the warmest days of the month, the temperature usually reaches around 30.5 °C (86.5 °F). However, in June 1995, it reached 32.3 °C (90.1 °F).
Precipitation amounts to only 1 mm (0 in), distributed over 0 days.
On average, there are 175 hours of sunshine per month, i.e. 6 hours per day.
The average humidity is 74%.
The average wind speed is 24 kph (15 kph).
The average sea temperature is of 23 °C (73.5 °F).

In July, the average temperature is of 25.6 °C (78 °F), with a minimum of 22.8 °C (73 °F) and a maximum of 28.5 °C (83.3 °F).
On the coldest nights of the month, the temperature usually drops to around 21 °C (70 °F). However, in July 2018, it dropped to 19.5 °C (67.1 °F).
On the warmest days of the month, the temperature usually reaches around 31.5 °C (89 °F). However, in July 1995, it reached 33.9 °C (93 °F).
Precipitation amounts to 10 mm (0.4 in), distributed over 3 days.
On average, there are 150 hours of sunshine per month, i.e. 5 hours per day.
The average humidity is 74%.
The average wind speed is 20 kph (12 kph).
The average sea temperature is of 24.5 °C (75.5 °F).

In August, the average temperature is of 27.0 °C (81 °F), with a minimum of 24.1 °C (75.3 °F) and a maximum of 29.9 °C (85.8 °F).
On the coldest nights of the month, the temperature usually drops to around 21.5 °C (71 °F). However, in August 1991, it dropped to 19.5 °C (67.1 °F).
On the warmest days of the month, the temperature usually reaches around 32 °C (90 °F). However, in August 2010, it reached 35 °C (95 °F).
Precipitation amounts to 17 mm (0.7 in), distributed over 5 days.
On average, there are 160 hours of sunshine per month, i.e. 5 hours per day.
The average humidity is 75%.
The average wind speed is 18 kph (11 kph).
The average sea temperature is of 26 °C (79 °F).

In September, the warmest month of the year, the average temperature is of 27.6 °C (82 °F), with a minimum of 24.7 °C (76.4 °F) and a maximum of 30.4 °C (86.8 °F).
On the coldest nights of the month, the temperature usually drops to around 21.5 °C (71 °F). However, in September 2016, it dropped to 15 °C (59 °F).
On the warmest days of the month, the temperature usually reaches around 32.5 °C (91 °F). However, in September 2012, it reached 35.2 °C (95.4 °F).
Precipitation amounts to 52 mm (2 in), distributed over 5 days.
On average, there are 180 hours of sunshine per month, i.e. 6 hours per day.
The average humidity is 77%.
The average wind speed is 20 kph (12 kph).
The average sea temperature is of 27 °C (80.5 °F).

In October, the average temperature is of 26.9 °C (80 °F), with a minimum of 23.9 °C (75 °F) and a maximum of 30 °C (86 °F).
On the coldest nights of the month, the temperature usually drops to around 21 °C (70 °F). However, in October 1994, it dropped to 20.4 °C (68.7 °F).
On the warmest days of the month, the temperature usually reaches around 33 °C (91 °F). However, in October 2006, it reached 35.2 °C (95.4 °F).
Precipitation amounts to 25 mm (1 in), distributed over 2 days.
On average, there are 200 hours of sunshine per month, i.e. 6.5 hours per day.
The average humidity is 75%.
The average wind speed is 21 kph (13 kph).
The average sea temperature is of 27 °C (80.5 °F).

In November, the average temperature is of 25.4 °C (78 °F), with a minimum of 22.4 °C (72.2 °F) and a maximum of 28.4 °C (83.1 °F).
On the coldest nights of the month, the temperature usually drops to around 19.5 °C (67 °F). However, in November 2020, it dropped to 17.5 °C (63.5 °F).
On the warmest days of the month, the temperature usually reaches around 31.5 °C (88.5 °F). However, in November 1995, it reached 35 °C (95 °F).
Precipitation amounts to only 3 mm (0.1 in), distributed over 2 days.
On average, there are 190 hours of sunshine per month, i.e. 6.5 hours per day.
The average humidity is 72%.
The average wind speed is 21 kph (13 kph).
The average sea temperature is of 26 °C (78.5 °F).

In December, the average temperature is of 23.4 °C (74 °F), with a minimum of 20.4 °C (68.8 °F) and a maximum of 26.4 °C (79.6 °F).
On the coldest nights of the month, the temperature usually drops to around 18 °C (64 °F). However, in December 1996, it dropped to 14.5 °C (58.1 °F).
On the warmest days of the month, the temperature usually reaches around 29 °C (84.5 °F). However, in December 2018, it reached 32 °C (89.6 °F).
Precipitation amounts to 19 mm (0.7 in), distributed over 2 days.
On average, there are 155 hours of sunshine per month, i.e. 5 hours per day.
The average humidity is 70%.
The average wind speed is 23 kph (14 kph).
The average sea temperature is of 24.5 °C (75.5 °F).