Johor Bahru, the capital of Johor state, sits at the southern tip of Peninsular Malaysia on the Johor Strait, directly across the causeway from Singapore, at approximately 1.49°N, 103.76°E. Almost on the equator, it has a tropical rainforest climate (Köppen Af) — hot, humid and rainy year-round with no true dry season.

There is no summer in the temperate sense: temperatures barely change, with daytime highs around 32–33°C and warm, humid nights near 24–25°C every month, and humidity consistently high. The typical rhythm is a bright morning building into heavy afternoon and evening thunderstorms, with sea breezes off the strait offering modest relief.

Nor is there a true winter. The wettest months come from around November to January, during the northeast monsoon, when the southern peninsula catches its heaviest rain and flooding becomes a real risk. The relatively drier stretch runs from around June to July, though even then substantial rain falls; no month is genuinely dry.

Johor Bahru is very wet, receiving on the order of 2,400–2,700 mm of rain a year, with rain in every month and no true dry season, though the northeast monsoon from November to January brings the heaviest falls, when severe flooding can strike southern Johor. Live rainfall, humidity, and pressure readings for the city are shown in the panels above.

Sitting almost on the equator, Johor Bahru has no dry season at all — thunderstorms can erupt on any day of the year, and its climate closely mirrors that of Singapore just across the causeway. The northeast monsoon of late year is its most dangerous period, when prolonged heavy rain has caused major flooding across southern Johor.

To follow any single measurement in Johor Bahru more closely, use our live instruments: the online barometer for atmospheric pressure, the thermometer for temperature, the hygrometer for humidity, the anemometer for wind speed, the wind vane for wind direction, and the rain gauge for rainfall.