Climate Insights for Callao
Climate Overview
The climate in Callao is warm and mild. The average annual temperature is 18°C and approximately 95 mm of precipitation falls per year. August is the wettest month, receiving around 12 mm of rainfall. Callao 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: February, March, January. The coldest months are September, August, October, when temperatures can drop to 15°C.The climate in Callao is warm and mild. The average annual temperature is 65°F and approximately 3.7 in of precipitation falls per year. August is the wettest month, receiving around 0.5 in of rainfall. Callao 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: February, March, January. The coldest months are September, August, October, when temperatures can drop to 59°F.
Temperature
Callao has relatively stable temperatures year-round, staying within a 8°C range. February is the warmest month, though highs remain moderate at 23°C with a mean of 22°C. September is the coolest month, with minimum temperatures around 15°C and an average of 16°C. Daily temperature variation is modest, with an average difference of 1°C between highs and lows.Callao has relatively stable temperatures year-round, staying within a 14°F range. February is the warmest month, though highs remain moderate at 73°F with a mean of 71°F. September is the coolest month, with minimum temperatures around 59°F and an average of 60°F. Daily temperature variation is modest, with an average difference of 2°F between highs and lows.
Precipitation
Callao is a quite dry location, receiving approximately 95 mm of precipitation annually, which averages out to around 8 mm per month. The wettest month is August, averaging 12 mm of rainfall. July and June also tend to see above-average precipitation. The driest month is April, with just 3 mm. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.Callao is a quite dry location, receiving approximately 3.7 in of precipitation annually, which averages out to around 0.3 in per month. The wettest month is August, averaging 0.5 in of rainfall. July and June also tend to see above-average precipitation. The driest month is April, with just 0.1 in. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
Callao 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 August, averaging 20km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 8km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 19km/h in winter, 18km/h in spring, 13km/h in summer, 15km/h in autumn.Callao is moderately windy, with an average annual wind speed of 10mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is August, averaging 12mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in February, with average winds dropping to 7mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5mph gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 12mph in winter, 11mph in spring, 8mph in summer, 9mph in autumn.
Best Time to Visit
The best time to visit Callao is during January, February, March, April, May, June, July, August, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 8 mm per month. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.The best time to visit Callao is during January, February, March, April, May, June, July, August, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 65°F with modest rainfall averaging 0.3 in per month. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.
Monthly Climate Data
The table below shows monthly climate averages for Callao 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.The table below shows monthly climate averages for Callao based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.