Climate - Cadiz (Andalusia)

The climate of Cadiz is Mediterranean, with mild, relatively rainy winters and warm, sunny summers.
The city is located in the extreme south of Spain, on the Atlantic coast of Andalusia (called Costa de la Luz). Due to its location on a small island, a short distance from the coast, it has a particularly mild microclimate. On the other hand, the city is quite windy.
On the other side of the bay, we find the cities of El Puerto de Santa María, Puerto Real and San Fernando.
The average temperature of the coldest month (January) is of 12.8 °C (55 °F), that of the warmest month (August) is of 25.2 °C (77.4 °F). Here are the average temperatures.

Precipitation amounts to 525 millimeters (20.7 inches) per year: so, it is at an intermediate level. It ranges from 0 mm (0 in) in the driest months (July, August) to 100 mm (3.9 in) in the wettest (November). Here is the average precipitation.

The winter, from December to February, is mild. There are some periods of bad weather, but also many sunny days.
It rarely gets very cold, and as we have mentioned, the city has a mild microclimate. The temperature almost never drops below freezing. The cold record is -1.5 °C (29 °F), recorded in January 1945 and January 1946. In February 1956, the temperature dropped to -1 °C (30 °F). From 2000 to 2020, it only dropped to 0 °C (32 °F) in January 2005 (when it dropped to -4.5 °C or 24 °F in the nearby city of Rota).
Given these premises, it is not surprising that snow in Cadiz is extremely rare, so much so that it is one of the least snowy cities in Europe. The last time it snowed was in February 1954, when the snow even whitened Tangier, Morocco, while in Cadiz there was no accumulation.

The summer, from mid-June to mid-September, is warm and sunny. The ocean breeze protects the city from the scorching heat that often plagues the interior of Andalusia. Sometimes there are quite cool days, with highs around 24/25 °C, even in July and August.
However, there can also be hot and muggy periods. On average, the temperature exceeds 30 °C (86 °F) for 27 days a year, but exceeds 35 °C (95 °F) for only two days. The heat record is 43 °C (109.5 °F), recorded in August 1982, however, the temperature very rarely reaches even 40 °C (109 °F), and from 2000 to 2020, it reached a maximum of 38 °C (100.5 °F).



On average, there are around 3,020 sunshine hours per year. Therefore, the sun shines very often. Here are the average sunshine hours per day.

The sea temperature ranges between 16 °C (61 °F) and 23 °C (73 °F). The Atlantic Ocean is not as warm as the Mediterranean, however, from July to September it is all in all acceptable for swimming. Here are the average sea temperatures.

Best Time

The best period to visit the city of Cadiz is late spring, from mid-April to mid-June. However, since it's usually not too hot in summer, you can also choose this season, bearing in mind that, if you want to combine the trip with an excursion to the interior of Andalusia, you will find intense heat, especially in inland areas (therefore, in this case, you can choose April, May and October, as we recommended for Seville). Autumn is mild, but there can be rainy periods, as well as in winter.
The best time for a beach holiday is summer, from mid-June to mid-September. It's better to bring a sweatshirt or sweater for cool and windy evenings, especially in June, but for safety, also in July and August, especially if you are sensitive to cold.

Back to Andalusia.

Cadiz - Weather by month

Based on the period 1991-2020

---

In January, the coldest month of the year, the weather in Cadiz is usually mild. The average temperature is of 12.8 °C (55 °F), with a minimum of 9.6 °C (49.3 °F) and a maximum of 16.1 °C (61 °F).
On the coldest nights of the month, the temperature usually drops to around 5 °C (41 °F). However, it dropped to 0.2 °C (32.4 °F) in January 2005.
On the warmest days of the month, the temperature usually reaches around 19.5 °C (67.5 °F). However, it reached 22.5 °C (72.5 °F) in January 2007.
Precipitation amounts to 70 mm (2.8 in), distributed over 7 days.
The day lasts on average 10 hours and 0 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 16.5 °C (61.5 °F). Therefore, the sea is cold for swimming.

---

In February, the weather in Cadiz is usually mild. The average temperature is of 13.7 °C (57 °F), with a minimum of 10.5 °C (50.9 °F) and a maximum of 16.9 °C (62.4 °F).
On the coldest nights of the month, the temperature usually drops to around 6 °C (43 °F). However, it dropped to 2.5 °C (36.5 °F) in February 2012.
On the warmest days of the month, the temperature usually reaches around 21 °C (69.5 °F). However, it reached 24.6 °C (76.3 °F) in February 1997.
Precipitation amounts to 60 mm (2.4 in), distributed over 6 days.
The day lasts on average 10 hours and 55 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 64% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is 16 kph (10 mph).
The average sea temperature is of 16 °C (60.5 °F). Therefore, the sea is cold for swimming.

---

In March, the weather in Cadiz is usually very mild. The average temperature is of 15.6 °C (60 °F), with a minimum of 12.5 °C (54.5 °F) and a maximum of 18.7 °C (65.7 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 8 °C (46.5 °F). However, it dropped to 3 °C (37.4 °F) in March 1993.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 24 °C (75.5 °F). However, it reached 29 °C (84.2 °F) in March 2002.
Precipitation amounts to 35 mm (1.4 in), distributed over 5 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 17 kph (11 mph).
The average sea temperature is of 16 °C (61 °F). Therefore, the sea is cold for swimming.

---

In April, the weather in Cadiz is usually very mild. The average temperature is of 17.1 °C (63 °F), with a minimum of 14.1 °C (57.4 °F) and a maximum of 20.1 °C (68.2 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 10.5 °C (50.5 °F). However, it dropped to 8 °C (46.4 °F) in April 1994.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 26 °C (79 °F). However, it reached 31.4 °C (88.5 °F) in April 1997.
Precipitation amounts to 45 mm (1.8 in), distributed over 6 days.
The day lasts on average 13 hours and 10 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 65% of the time.
The average humidity is 69%.
The average wind speed is 16 kph (10 mph).
The average sea temperature is of 17 °C (62 °F). Therefore, the sea is cold for swimming.

---

In May, the weather in Cadiz is usually warm. The average temperature is of 19.7 °C (67 °F), with a minimum of 16.7 °C (62.1 °F) and a maximum of 22.7 °C (72.9 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 12.5 °C (54.5 °F). However, it dropped to 9.4 °C (48.9 °F) in May 2003.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 29 °C (84 °F). However, it reached 36.5 °C (97.7 °F) in May 2012.
Precipitation amounts to 25 mm (1 in), distributed over 3 days.
The day lasts on average 14 hours and 10 minutes. So the days are long.
There are on average 10 hours of sunshine per day. So, the sun shines 70% of the time.
The average humidity is 70%.
The average wind speed is 16 kph (10 mph).
The average sea temperature is of 18 °C (64.5 °F). Therefore, the sea is cold for swimming.

---

In June, the weather in Cadiz is usually warm. The average temperature is of 22.5 °C (72 °F), with a minimum of 19.6 °C (67.3 °F) and a maximum of 25.4 °C (77.7 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 16.5 °C (62 °F). However, it dropped to 14.6 °C (58.3 °F) in June 1992.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 31.5 °C (88.5 °F). However, it reached 37.4 °C (99.3 °F) in June 2017.
Precipitation amounts to only 5 mm (0.2 in), and all occurs in one day.
The day lasts on average 14 hours and 35 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 11 hours of sunshine per day. So, the sun shines 76% of the time.
The average humidity is 69%.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 20 °C (68 °F). Therefore, the sea is very cool for swimming.

---

In July, the weather in Cadiz is usually warm to hot. The average temperature is of 24.5 °C (76 °F), with a minimum of 21.5 °C (70.7 °F) and a maximum of 27.5 °C (81.5 °F).
On the coldest nights of the month, the temperature usually drops to around 18.5 °C (65.5 °F). However, it dropped to 16.8 °C (62.2 °F) in July 1997.
On the warmest days of the month, the temperature usually reaches around 34 °C (93 °F). However, it reached 38 °C (100.4 °F) in July 2004.
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 14 hours and 20 minutes. So the days are long.
There are on average 11.5 hours of sunshine per day. So, the sun shines 80% of the time.
The average humidity is 68%.
The average wind speed is 16 kph (10 mph).
The average sea temperature is of 22 °C (71.5 °F). Therefore, the sea is cool for swimming.

---

In August, the hottest month of the year, the weather in Cadiz is usually warm to hot. The average temperature is of 25.2 °C (77 °F), with a minimum of 22.2 °C (72 °F) and a maximum of 28.2 °C (82.8 °F).
On the coldest nights of the month, the temperature usually drops to around 19 °C (66.5 °F). However, it dropped to 17.2 °C (63 °F) in August 2002.
On the warmest days of the month, the temperature usually reaches around 34 °C (93.5 °F). However, it reached 38.1 °C (100.6 °F) in August 2000.
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 13 hours and 30 minutes.
There are on average 11 hours of sunshine per day. So, the sun shines 80% of the time.
The average humidity is 70%.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 22.5 °C (72.5 °F). Therefore, the sea can be considered barely acceptable for swimming.

---

In September, the weather in Cadiz is usually warm to hot and muggy. The average temperature is of 23.2 °C (74 °F), with a minimum of 20.4 °C (68.7 °F) and a maximum of 26 °C (78.8 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 17 °C (63 °F). However, it dropped to 14 °C (57.2 °F) in September 1991.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 31.5 °C (88.5 °F). However, it reached 36 °C (96.8 °F) in September 2000.
Precipitation amounts to 25 mm (1 in), distributed over 3 days.
The day lasts on average 12 hours and 25 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 68% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 22 °C (71.5 °F). Therefore, the sea is cool for swimming.

---

In October, the weather in Cadiz is usually warm. The average temperature is of 20.5 °C (69 °F), with a minimum of 17.5 °C (63.5 °F) and a maximum of 23.5 °C (74.3 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 13 °C (55.5 °F). However, it dropped to 9 °C (48.2 °F) in October 1993.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 28 °C (83 °F). However, it reached 31 °C (87.8 °F) in October 1997.
Precipitation amounts to 65 mm (2.6 in), distributed over 6 days.
The day lasts on average 11 hours and 10 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 20.5 °C (69 °F). Therefore, the sea is cool for swimming.

---

In November, the weather in Cadiz is usually very mild. The average temperature is of 16.4 °C (62 °F), with a minimum of 13.4 °C (56.1 °F) and a maximum of 19.5 °C (67.1 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 8.5 °C (47.5 °F). However, it dropped to 5 °C (41 °F) in November 1991.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 23.5 °C (74.5 °F). However, it reached 26.6 °C (79.9 °F) in November 1995.
Precipitation amounts to 100 mm (3.9 in), distributed over 7 days.
The day lasts on average 10 hours and 10 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 19 °C (66 °F). Therefore, the sea is very cool for swimming.

---

In December, the weather in Cadiz is usually mild. The average temperature is of 13.8 °C (57 °F), with a minimum of 10.8 °C (51.4 °F) and a maximum of 16.9 °C (62.4 °F).
On the coldest nights of the month, the temperature usually drops to around 6 °C (42.5 °F). However, it dropped to 2.2 °C (36 °F) in December 1994.
On the warmest days of the month, the temperature usually reaches around 20 °C (68 °F). However, it reached 21.7 °C (71.1 °F) in December 2019.
Precipitation amounts to 90 mm (3.5 in), distributed over 8 days.
The day lasts on average 9 hours and 40 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 5.5 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 16 kph (10 mph).
The average sea temperature is of 17.5 °C (63.5 °F). Therefore, the sea is cold for swimming.