Climate Insights for Harvard Airport

The climate in Harvard Airport is warm and mild. The average annual temperature is 21°C and approximately 109mm of precipitation falls per year. January is the wettest month, receiving around 23mm of rainfall. Harvard Airport 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 December, January, February, when temperatures can drop to 4°C.

Harvard Airport has a wide annual temperature range, spanning 37°C from the coldest to warmest months. July is the hottest month, with daytime highs reaching 41°C and an average of 34°C. December is the coolest month, with minimum temperatures around 4°C and an average of 9°C. On average, daily temperatures fluctuate by about 14°C between overnight lows and afternoon highs. The sharpest temperature change occurs between May and June, with a 7°C shift in average temperatures.

Harvard Airport is a quite dry location, receiving approximately 109mm of precipitation annually, which averages out to around 9mm per month. The wettest month is January, averaging 23mm of rainfall. December and April also tend to see above-average precipitation. The driest month is June, with just 0mm. That's 23mm less than January, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Harvard Airport 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 April, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.

It is currently spring in Harvard Airport, which began on March 20, 2026. Harvard Airport 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 41°C, while the coldest stretch bottoms out in December near 4°C. Summer is next, beginning on June 21, 2026 — 4 days from now.

The best time to visit Harvard Airport is during March, April, May and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 10mm per month. By contrast, July can be uncomfortably hot with highs reaching 41°C, while December is the coldest period with lows dropping to 4°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Harvard Airport 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.