Climate Overview
The climate in Istmina is hot. The average annual temperature is 27°C and approximately 8783mm of precipitation falls per year. Istmina receives a notable amount of rainfall throughout the year, including during its driest month. Istmina sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Istmina has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is February, when average highs reach 32°C and the mean temperature sits around 27°C. November is the coolest month, with minimum temperatures around 23°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows.
Precipitation
Istmina is a very wet location, receiving approximately 8783mm of precipitation annually, which averages out to around 732mm per month. The wettest month is September, averaging 950mm of rainfall. July and August also tend to see above-average precipitation. The driest month is February, with just 378mm. That's 572mm 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.
Wind
Istmina is relatively calm, with an average annual wind speed of 8km/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 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 7km/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.
Seasons
89 days until Summer
It is currently spring in Istmina, which began on March 20, 2026. Istmina sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in February at around 32°C, while the coldest stretch bottoms out in November near 23°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 24 to 32°C. Rainfall is heavy, totalling around 1988mm across the season with a monthly average of 663mm. Winds are generally light, averaging 7km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 24 to 30°C. Rainfall is heavy, totalling around 2722mm across the season with a monthly average of 907mm. Winds are generally light, averaging 8km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 2711mm across the season with a monthly average of 904mm. Winds are generally light, averaging 8km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 24 to 32°C. Rainfall is heavy, totalling around 1362mm across the season with a monthly average of 454mm. Winds are generally light, averaging 8km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Istmina 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.
