Will I be cold?
Will I be cold in Singapore in January?
Verdict
No — No, comfortable.
Lows stay near 75°F — you won't be reaching for the puffer.
Day vs. night
Day
86°F
Hot
Prioritize shade, hydration, and a brim.
Night
75°F
Warm
Still warm enough for a T-shirt after dark.
Why
Singapore in January averages highs of 86°F, lows of 75°F, 17 rainy days.
You can pack for the daytime temps and not worry about the evening dip.