Climate Insights for Harkers Island

The climate in Harkers Island is warm and mild. The average annual temperature is 19°C and approximately 1603mm of precipitation falls per year. Harkers Island receives a notable amount of rainfall throughout the year, including during its driest month. Harkers Island is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, December, February, when temperatures can drop to 7°C.

Temperatures in Harkers Island vary considerably across the year, with a 23°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 30°C and the mean temperature sits around 27°C. January is the coolest month, with minimum temperatures around 7°C and an average of 10°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.

Harkers Island is a fairly wet location, receiving approximately 1603mm of precipitation annually, which averages out to around 134mm per month. The wettest month is September, averaging 244mm of rainfall. August and June also tend to see above-average precipitation. The driest month is October, with just 80mm. That's 164mm less than September, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Harkers Island 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 April, averaging 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.

It is currently spring in Harkers Island, which began on March 20, 2026. Harkers Island is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 30°C, while the coldest stretch bottoms out in January near 7°C. Summer is next, beginning on June 21, 2026 — 6 days from now.

The best time to visit Harkers Island is during October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 80mm per month. By contrast, July can be uncomfortably hot with highs reaching 30°C, while January is the coldest period with lows dropping to 7°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.

The table below shows monthly climate averages for Harkers Island 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.