Climate Overview
The climate in San Pedro is warm and mild. The average annual temperature is 20°C and approximately 1903mm of precipitation falls per year. October is the wettest month, receiving around 247mm of rainfall. San Pedro is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: January, February, December. The coldest months are June, July, September, when temperatures can drop to 8°C.
Temperature
Temperatures in San Pedro vary considerably across the year, with a 22°C difference between the coldest and warmest months. The warmest month is January, when average highs reach 30°C and the mean temperature sits around 25°C. June is the coolest month, with minimum temperatures around 8°C and an average of 12°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 7°C shift in average temperatures.
Precipitation
San Pedro is a fairly wet location, receiving approximately 1903mm of precipitation annually, which averages out to around 159mm per month. The wettest month is October, averaging 247mm of rainfall. March and February also tend to see above-average precipitation. The driest month is June, with just 27mm. That's 219mm 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.
Wind
San Pedro is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.
Seasons
63 days until Spring
It is currently winter in San Pedro, which began on June 21, 2026. San Pedro is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in January at around 30°C, while the coldest stretch bottoms out in June near 8°C. Spring is next, beginning on September 23, 2026 — 63 days from now.
Spring
Temperatures range from 12 to 28°C. Rainfall is heavy, totalling around 456mm across the season with a monthly average of 152mm. Winds are generally light, averaging 2km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 19 to 30°C. Rainfall is heavy, totalling around 583mm across the season with a monthly average of 194mm. Winds are generally light, averaging 2km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 12 to 27°C. Rainfall is heavy, totalling around 548mm across the season with a monthly average of 183mm. Winds are generally light, averaging 2km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 8 to 23°C. Rainfall is heavy, totalling around 315mm across the season with a monthly average of 105mm. Winds are generally light, averaging 3km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit San Pedro is during September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 69mm per month. By contrast, January can be uncomfortably hot with highs reaching 30°C, while June is the coldest period with lows dropping to 8°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for San Pedro 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.