Climate Overview
The climate in Istmina is hot. The average annual temperature is 27°C and approximately 7565mm 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. October 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 7565mm of precipitation annually, which averages out to around 630mm per month. The wettest month is October, averaging 989mm of rainfall. June and September also tend to see above-average precipitation. The driest month is February, with just 345mm. That's 644mm less than October, 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 1km/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 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.
Seasons
90 days until Autumn
It is currently summer in Istmina, which began on June 21, 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 October near 23°C. Autumn is next, beginning on September 23, 2026 — 90 days from now.
Spring
Temperatures range from 24 to 32°C. Rainfall is heavy, totalling around 1671mm across the season with a monthly average of 557mm. Winds are generally light, averaging 1km/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 2238mm across the season with a monthly average of 746mm. Winds are generally light, averaging 1km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 2515mm across the season with a monthly average of 838mm. Winds are generally light, averaging 1km/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 1141mm across the season with a monthly average of 380mm. Winds are generally light, averaging 1km/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.
