Climate Overview
The climate in New Amsterdam is hot. The average annual temperature is 27°C and approximately 2665mm of precipitation falls per year. New Amsterdam receives a notable amount of rainfall throughout the year, including during its driest month. New Amsterdam sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
New Amsterdam has relatively stable temperatures year-round, staying within a 6°C range. The warmest month is September, when average highs reach 30°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 24°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows.
Precipitation
New Amsterdam is a very wet location, receiving approximately 2665mm of precipitation annually, which averages out to around 222mm per month. The wettest month is May, averaging 472mm of rainfall. June and July also tend to see above-average precipitation. The driest month is September, with just 88mm. That's 384mm less than May, 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.
Wind
New Amsterdam is mildly breezy, with an average annual wind speed of 17km/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 20km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 14km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/h gap 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 19km/h in winter, 19km/h in spring, 15km/h in summer, 17km/h in autumn.
Seasons
89 days until Summer
It is currently spring in New Amsterdam, which began on March 20, 2026. New Amsterdam sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in September at around 30°C, while the coldest stretch bottoms out in January near 24°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 25 to 28°C. Rainfall is heavy, totalling around 814mm across the season with a monthly average of 271mm. Winds are moderate at around 19km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 25 to 29°C. Rainfall is heavy, totalling around 876mm across the season with a monthly average of 292mm. Winds are generally light, averaging 15km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 26 to 30°C. Rainfall is heavy, totalling around 390mm across the season with a monthly average of 130mm. Winds are moderate at around 17km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 24 to 28°C. Rainfall is heavy, totalling around 586mm across the season with a monthly average of 195mm. Winds are moderate at around 19km/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 New Amsterdam 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.
