Climate Insights for Harrington

The climate in Harrington is warm and mild. The average annual temperature is 20°C and approximately 963mm of precipitation falls per year. Harrington receives a notable amount of rainfall throughout the year, including during its driest month. Harrington 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, August, June, when temperatures can drop to 13°C.

Harrington sees moderate temperature variation throughout the year, ranging from 13°C to 26°C. The warmest month is January, when average highs reach 26°C and the mean temperature sits around 24°C. July is the coolest month, with minimum temperatures around 13°C and an average of 15°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between April and May, with a 3°C shift in average temperatures.

Harrington is a moderately rainy area, receiving approximately 963mm of precipitation annually, which averages out to around 80mm per month. The wettest month is March, averaging 146mm of rainfall. June and February also tend to see above-average precipitation. The driest month is September, with just 44mm. That's 102mm less than March, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Harrington is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 5km/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.

It is currently winter in Harrington, which began on June 21, 2026. Harrington 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 26°C, while the coldest stretch bottoms out in July near 13°C. Spring is next, beginning on September 23, 2026 — 89 days from now.

The best time to visit Harrington is during January, April, May, July, August, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 64mm per month. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Harrington 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.