Climate Insights for Grier Airport

The climate in Grier Airport is warm and mild. The average annual temperature is 20°C and approximately 831mm of precipitation falls per year. Grier Airport receives a notable amount of rainfall throughout the year, including during its driest month. Grier 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 January, December, February, when temperatures can drop to 5°C.

Temperatures in Grier Airport vary considerably across the year, with a 30°C difference between the coldest and warmest months. July is the hottest month, with daytime highs reaching 35°C and an average of 29°C. January is the coolest month, with minimum temperatures around 5°C and an average of 10°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.

Grier Airport is a moderately rainy area, receiving approximately 831mm of precipitation annually, which averages out to around 69mm per month. The wettest month is September, averaging 120mm of rainfall. May and April also tend to see above-average precipitation. The driest month is July, with just 35mm. That's 86mm less than September, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Grier 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 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 3km/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 spring in Grier Airport, which began on March 20, 2026. Grier 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 35°C, while the coldest stretch bottoms out in January near 5°C. Summer is next, beginning on June 21, 2026 — 7 days from now.

The best time to visit Grier Airport is during March, April, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 66mm per month. By contrast, July can be uncomfortably hot with highs reaching 35°C, while January is the coldest period with lows dropping to 5°C. 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 Grier 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.