Climate Insights for Issa

The climate in Issa is cool. The average annual temperature is 6°C and approximately 566mm of precipitation falls per year. July is the wettest month, receiving around 68mm of rainfall. Issa 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, February, December, when temperatures can drop to -12°C. Snowfall occurs from January to December, with around 137cm accumulating over the season.

Issa has a wide annual temperature range, spanning 37°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 25°C with a mean of 20°C. The coldest month is January, when overnight lows fall to -12°C and the daily average is -9°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between March and April, with a 9°C shift in average temperatures.

Issa is a relatively dry area, receiving approximately 566mm of precipitation annually, which averages out to around 47mm per month. The wettest month is July, averaging 68mm of rainfall. April and May also tend to see above-average precipitation. The driest month is March, with just 28mm. That's 40mm 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. Snowfall is a regular feature from January to December, with around 137cm accumulating over the season. January typically sees the most snow at around 37cm.

Issa is mildly breezy, with an average annual wind speed of 19km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 21km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in August, with average winds dropping to 16km/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. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 21km/h in winter, 20km/h in spring, 16km/h in summer, 19km/h in autumn.

It is currently spring in Issa, which began on March 20, 2026. Issa 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 25°C, while the coldest stretch bottoms out in January near -12°C. Summer is next, beginning on June 21, 2026 — 88 days from now.

The best time to visit Issa is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 52mm per month. By contrast, January can be quite cold with temperatures dropping to -12°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 Issa 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. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. 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.