Outdoors and travel writer covering Cádiz beaches, coastal walks and day trips.
Because Cádiz occupies a narrow limestone peninsula jutting into the Atlantic Ocean at the mouth of the Bay of Cádiz, its climate behaves nothing like inland Andalucía. Official AEMET 1991–2020 climate normals for the Cádiz station (5973) record an annual mean temperature of 18.6 °C, an average annual high of 21.6 °C, an average annual low of 15.4 °C, 523 mm of annual rainfall across 50.7 rain days, and 0.0 snow days.
Use this page as the year-round meteorological reference alongside our best time to visit Cádiz guide and our seasonal breakdowns for Cádiz in summer, October, November, and December.
Water surrounds the historic centre of Cádiz on nearly every side, moderating both seasonal extremes. In winter, the ocean prevents frost: January is the coolest month of the year, yet daytime highs still average 16.0 °C and overnight lows stay at 9.4 °C.
In summer, the same thermal inertia caps daytime heat. July averages a 27.7 °C maximum and August averages 27.9 °C in Cádiz, whereas inland Seville Airport (AEMET station 5783) averages a 36.0 °C daytime high in July (an 8.3 °C difference). Rainfall is sharply Mediterranean: June (7 mm), July (0 mm), and August (2 mm) are almost completely dry, while roughly two-thirds of the annual 523 mm falls between October and February.
The table below reproduces the official 1991–2020 standard climate normals published by Spain's State Meteorological Agency (AEMET) for the Cádiz observatory (station 5973):
| Month | Mean (°C) | Avg High (°C) | Avg Low (°C) | Rain (mm) | Rain Days (≥1 mm) | Humidity (%) | Sunshine (hrs) |
|---|---|---|---|---|---|---|---|
| January | 12.7 | 16.0 | 9.4 | 69 | 6.9 | 75% | 184 |
| February | 13.8 | 16.8 | 10.7 | 58 | 6.4 | 74% | 197 |
| March | 15.5 | 18.8 | 12.3 | 35 | 4.8 | 71% | 228 |
| April | 16.8 | 19.9 | 13.7 | 45 | 5.6 | 69% | 255 |
| May | 19.1 | 22.1 | 16.2 | 27 | 3.2 | 70% | 307 |
| June | 22.4 | 25.3 | 19.5 | 7 | 0.9 | 69% | 331 |
| July | 24.6 | 27.7 | 21.4 | 0 | 0.1 | 68% | - |
| August | 25.0 | 27.9 | 22.0 | 2 | 0.2 | 70% | - |
| September | 23.3 | 26.3 | 20.3 | 24 | 2.5 | 71% | 252 |
| October | 20.3 | 23.4 | 17.3 | 67 | 5.6 | 74% | 228 |
| November | 16.5 | 19.6 | 13.4 | 98 | 7.2 | 74% | 187 |
| December | 13.9 | 16.9 | 10.9 | 92 | 8.1 | 76% | 166 |
| Annual | 18.6 | 21.6 | 15.4 | 523 | 50.7 | - | - |
Ask any local in Cádiz about the forecast and they will tell you the wind direction before the temperature. Two prevailing winds govern daily life on the peninsula:
“In Cádiz, the thermometer rarely surprises you; the wind direction decides which beach you swim at and which side of the peninsula you walk.”
Daytime highs climb steadily from 18.8 °C in March (35 mm rain, 4.8 rain days, 228 sunshine hours) and 19.9 °C in April (45 mm rain, 5.6 rain days, 255 sunshine hours) to 22.1 °C in May (27 mm rain, 3.2 rain days, 307 sunshine hours). Late spring is prime season for Semana Santa in Cádiz, bluefin tuna season (atún de almadraba), and coastal walks before summer crowds arrive.
Highs average 25.3 °C in June (331 sunshine hours), 27.7 °C in July, and 27.9 °C in August, with only 0 to 7 mm of monthly rainfall. Official high beach season runs from 1 July to 31 August across all four beaches; see our dedicated Cádiz in summer guide.
September feels like a fifth summer month at a 26.3 °C average high (24 mm rain across 2.5 rain days, 252 sunshine hours). Cádiz in October averages a 23.4 °C high with 67 mm of rain over 5.6 days and 228 sunshine hours. Cádiz in November brings the year's highest monthly rainfall total (98 mm across 7.2 rain days) alongside mild 19.6 °C highs and 187 hours of sun.
Cádiz in December averages a 16.9 °C high (92 mm rain across 8.1 rain days, 166 sunshine hours), dipping slightly to 16.0 °C in January (69 mm across 6.9 days, 184 sunshine hours) and rebounding to 16.8 °C in February (58 mm across 6.4 days, 197 sunshine hours) just in time for the street performances of the Carnaval de Cádiz.
Before entering the Atlantic or booking open-air sites, check three official municipal and regional rules:
Respect the red flag and the 14:00 to 18:00 UV window
Local correspondent tips
On strong easterly Levante days, fine dry sand whips across the open stretches of Cortadura and Playa Victoria. Walk into the historic centre and swim at La Caleta instead, where the old-town walls and twin castles block the easterly gusts.
May and June deliver 22.1–25.3 °C highs and 307–331 hours of sunshine with only 0.9 to 3.2 rain days per month, while September and October keep afternoon highs at 26.3 °C and 23.4 °C after the August crowds leave.
Cádiz records 0.0 snow days and winter afternoons reach 16.0–16.9 °C, but 74–76% Atlantic humidity makes evening breezes feel brisk. In summer, follow municipal safety guidance by staying off the sand between 14:00 and 18:00.
August is the warmest month in Cádiz according to AEMET 1991–2020 normals, with a monthly mean of 25.0 °C, an average daytime high of 27.9 °C, and an average overnight low of 22.0 °C. July follows closely with a 24.6 °C mean and a 27.7 °C average high, which is still 8.3 °C cooler than inland Seville Airport (36.0 °C in July).
January is the coolest month with a 12.7 °C mean temperature, a 16.0 °C average daytime high, and a 9.4 °C overnight low. November is the wettest month by total rainfall volume at 98 mm (across 7.2 rain days), while December has the highest number of rain days at 8.1 days (92 mm).
The Levante is a persistent, warm, dry easterly wind funnelled through the Strait of Gibraltar, where AEMET studies record it blowing an average of 165 days per year. When a strong Levante picks up loose sand on exposed beaches like Playa Victoria and Cortadura, locals move to the sheltered old-town cove of La Caleta or explore the walled lanes of El Pópulo and Santa María.
No. AEMET 1991–2020 climate normals for Cádiz record 0.0 snow days per year and an average January minimum temperature of 9.4 °C.
Municipal beach regulations use a three-colour flag system: a green flag indicates safe swimming conditions, a yellow flag means swim with caution, and a red flag means swimming is strictly prohibited (Bandera roja: prohibido el baño).
Further reading
“18.6 | 21.6 | 15.4 | 523 | - | 50.7 | - | - | - | 0.0 | - | -”
“Enero | 12.7 | 16.0 | 9.4 | 69 | 75 | 6.9 | 0.0 | 1.4 | 1.8 | 0.0 | 9.2 | 184”
“Febrero | 13.8 | 16.8 | 10.7 | 58 | 74 | 6.4 | 0.0 | 1.1 | 1.1 | 0.0 | 8.0 | 197”
“Marzo | 15.5 | 18.8 | 12.3 | 35 | 71 | 4.8 | 0.0 | 0.9 | 1.1 | 0.0 | 9.9 | 228”
“Abril | 16.8 | 19.9 | 13.7 | 45 | 69 | 5.6 | 0.0 | 0.9 | 0.3 | 0.0 | 7.4 | 255”
“Mayo | 19.1 | 22.1 | 16.2 | 27 | 70 | 3.2 | 0.0 | 0.8 | 0.2 | 0.0 | 8.2 | 307”
“Junio | 22.4 | 25.3 | 19.5 | 7 | 69 | 0.9 | 0.0 | 0.3 | 0.5 | 0.0 | 13.9 | 331”
“Julio | 24.6 | 27.7 | 21.4 | 0 | 68 | 0.1 | 0.0 | 0.2 | 0.7 | 0.0 | 19.0 | -”
“Agosto | 25.0 | 27.9 | 22.0 | 2 | 70 | 0.2 | 0.0 | 0.1 | 0.5 | 0.0 | - | -”
“Septiembre | 23.3 | 26.3 | 20.3 | 24 | 71 | 2.5 | 0.0 | 0.7 | 0.4 | 0.0 | 11.3 | 252”
“Octubre | 20.3 | 23.4 | 17.3 | 67 | 74 | 5.6 | 0.0 | 1.3 | 0.5 | 0.0 | 8.9 | 228”
“Noviembre | 16.5 | 19.6 | 13.4 | 98 | 74 | 7.2 | 0.0 | 1.7 | 0.9 | 0.0 | 8.1 | 187”
“Diciembre | 13.9 | 16.9 | 10.9 | 92 | 76 | 8.1 | 0.0 | 1.4 | 1.1 | 0.0 | 7.9 | 166”
“Julio | 28.2 | 36.0 | 20.3 | 2”
“El número medio de días en que sopla levante en el Estrecho es de 165.”
“Bandera roja: prohibido el baño”
“evitar las horas de máxima radiación solar ( 14:00 - 18:00)”
“Por seguridad el enclave podrá cerrarse al público, especialmente los días que se observen inclemencias meteorológicas extremas.”