Climate Insights for Cilleros

The climate in Cilleros is temperate. The average annual temperature is 15°C and approximately 735mm of precipitation falls per year. October is the wettest month, receiving around 129mm of rainfall. Cilleros is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to 3°C.

Temperatures in Cilleros vary considerably across the year, with a 28°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 31°C and the mean temperature sits around 24°C. January is the coolest month, with minimum temperatures around 3°C and an average of 6°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.

Cilleros is a relatively dry area, receiving approximately 735mm of precipitation annually, which averages out to around 61mm per month. The wettest month is October, averaging 129mm of rainfall. November and December also tend to see above-average precipitation. The driest month is August, with just 6mm. That's 123mm less than October, 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.

Cilleros is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 18km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 14km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months.

It is currently spring in Cilleros, which began on March 20, 2026. Cilleros 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 July at around 31°C, while the coldest stretch bottoms out in January near 3°C. Summer is next, beginning on June 21, 2026 — 88 days from now.

The best time to visit Cilleros is during May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 29mm per month. By contrast, January can be quite cold with temperatures dropping to 3°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Cilleros 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.