Climate Overview
The climate in Kertih is hot. The average annual temperature is 27°C and approximately 2655mm of precipitation falls per year. Kertih receives a notable amount of rainfall throughout the year, including during its driest month. Kertih sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Kertih has relatively stable temperatures year-round, staying within a 4°C range. The warmest month is May, when average highs reach 29°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 25°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.
Precipitation
Kertih is a very wet location, receiving approximately 2655mm of precipitation annually, which averages out to around 221mm per month. The wettest month is December, averaging 545mm of rainfall. November and January also tend to see above-average precipitation. The driest month is June, with just 99mm. That's 447mm less than December, 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
Kertih is moderately windy, with an average annual wind speed of 20km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 24km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in October, with average winds dropping to 16km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 8km/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 24km/h in winter, 18km/h in spring, 20km/h in summer, 17km/h in autumn.
Seasons
89 days until Summer
It is currently spring in Kertih, which began on March 20, 2026. Kertih sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in May at around 29°C, while the coldest stretch bottoms out in January near 25°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 26 to 29°C. Rainfall is heavy, totalling around 399mm across the season with a monthly average of 133mm. Winds are moderate at around 18km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 27 to 29°C. Rainfall is heavy, totalling around 323mm across the season with a monthly average of 108mm. Winds are moderate at around 20km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 26 to 28°C. Rainfall is heavy, totalling around 821mm across the season with a monthly average of 274mm. Winds are moderate at around 17km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 27°C. Rainfall is heavy, totalling around 1112mm across the season with a monthly average of 371mm. Winds are moderate at around 24km/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 Kertih 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.
