Climate Insights for Porirua
Porirua City Centre, Porirua City, Wellington, New Zealand
Climate Overview
The climate in Porirua is temperate. The average annual temperature is 14°C and approximately 1,008 mm of precipitation falls per year. Porirua receives a notable amount of rainfall throughout the year, including during its driest month. Porirua 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, January, March. The coldest months are August, July, September, when temperatures can drop to 10°C.The climate in Porirua is temperate. The average annual temperature is 57°F and approximately 39.7 in of precipitation falls per year. Porirua receives a notable amount of rainfall throughout the year, including during its driest month. Porirua 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, January, March. The coldest months are August, July, September, when temperatures can drop to 50°F.
Temperature
Porirua has relatively stable temperatures year-round, staying within a 8°C range. February is the warmest month, though highs remain moderate at 18°C with a mean of 17°C. August is the coolest month, with minimum temperatures around 10°C and an average of 11°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.Porirua has relatively stable temperatures year-round, staying within a 15°F range. February is the warmest month, though highs remain moderate at 65°F with a mean of 63°F. August is the coolest month, with minimum temperatures around 50°F and an average of 51°F. Daily temperature variation is modest, with an average difference of 4°F between highs and lows.
Precipitation
Porirua is a moderately rainy area, receiving approximately 1,008 mm of precipitation annually, which averages out to around 84 mm per month. The wettest month is July, averaging 116 mm of rainfall. June and May also tend to see above-average precipitation. The driest month is January, with just 50 mm. That's 66 mm less than July, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.Porirua is a moderately rainy area, receiving approximately 39.7 in of precipitation annually, which averages out to around 3.3 in per month. The wettest month is July, averaging 4.6 in of rainfall. June and May also tend to see above-average precipitation. The driest month is January, with just 2 in. That's 2.6 in less than July, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.
Wind
Porirua is moderately windy, with an average annual wind speed of 26km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 30km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in April, with average winds dropping to 25km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h between the calmest and windiest months.Porirua is very windy, with an average annual wind speed of 16mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is September, averaging 18mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in April, with average winds dropping to 15mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3mph between the calmest and windiest months.
Best Time to Visit
The best time to visit Porirua is during January, February, March and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 69 mm per month. By contrast, August can be quite cold with temperatures dropping to 10°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.The best time to visit Porirua is during January, February, March and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 61°F with modest rainfall averaging 2.7 in per month. By contrast, August can be quite cold with temperatures dropping to 50°F. 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 Porirua 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 Porirua 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.