Climate Overview
The climate in San Pedro is warm and mild. The average annual temperature is 21°C and approximately 1872mm of precipitation falls per year. San Pedro receives a notable amount of rainfall throughout the year, including during its driest month. 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 July, June, August, when temperatures can drop to 12°C.
Temperature
San Pedro sees moderate temperature variation throughout the year, ranging from 12°C to 30°C. The warmest month is January, when average highs reach 30°C and the mean temperature sits around 25°C. July is the coolest month, with minimum temperatures around 12°C and an average of 16°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 3°C shift in average temperatures.
Precipitation
San Pedro is a fairly wet location, receiving approximately 1872mm of precipitation annually, which averages out to around 156mm per month. The wettest month is October, averaging 245mm of rainfall. December and May also tend to see above-average precipitation. The driest month is August, with just 89mm. That's 156mm less than October, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
San Pedro is relatively calm, with an average annual wind speed of 3km/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 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.
Seasons
20 days until Winter
It is currently autumn in San Pedro, which began on March 20, 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 July near 12°C. Winter is next, beginning on June 21, 2026 — 20 days from now.
Spring
Temperatures range from 15 to 28°C. Rainfall is heavy, totalling around 556mm across the season with a monthly average of 185mm. Winds are generally light, averaging 4km/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 498mm across the season with a monthly average of 166mm. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 14 to 28°C. Rainfall is heavy, totalling around 465mm across the season with a monthly average of 155mm. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 12 to 23°C. Rainfall is heavy, totalling around 354mm across the season with a monthly average of 118mm. Winds are generally light, averaging 4km/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 August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 89mm per month. By contrast, January can be uncomfortably hot with highs reaching 30°C, while July is the coldest period with lows dropping to 12°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.
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.
