Climate Insights for Cadiz

The climate in Cadiz is warm and mild. The average annual temperature is 19°C and approximately 596mm of precipitation falls per year. May is the wettest month, receiving around 128mm of rainfall. Cadiz is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are March, February, December, when temperatures can drop to 12°C.

Cadiz sees moderate temperature variation throughout the year, ranging from 12°C to 27°C. The warmest month is August, when average highs reach 27°C and the mean temperature sits around 25°C. March is the coolest month, with minimum temperatures around 12°C and an average of 14°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between October and November, with a 4°C shift in average temperatures.

Cadiz is a relatively dry area, receiving approximately 596mm of precipitation annually, which averages out to around 50mm per month. The wettest month is May, averaging 128mm of rainfall. November and December also tend to see above-average precipitation. The driest month is June, with just 0mm. That's 128mm less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Cadiz is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.

It is currently summer in Cadiz, which began on June 21, 2026. Cadiz is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 27°C, while the coldest stretch bottoms out in March near 12°C. Autumn is next, beginning on September 23, 2026 — 51 days from now.

The best time to visit Cadiz is during January, April, June, July, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 34mm per month. By contrast, August can be uncomfortably hot with highs reaching 27°C, while March is the coldest period with lows dropping to 12°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Cadiz based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.