Brunei features a hot, humid tropical rainforest climate (Af in Köppen classification) throughout the year, with minimal temperature variation and high rainfall. Daytime temperatures consistently range from 29-32°C, dropping to 23-25°C at night, accompanied by oppressive humidity levels around 80-90%. Annual rainfall exceeds 3000mm, distributed across frequent showers, particularly during the northeast monsoon from November to March. Sunshine averages 5-6 hours daily, while the equatorial location ensures short days year-round. This stable, warm, wet environment suits residents who adapt to constant humidity but may challenge those sensitive to heat or seeking seasonal variety.