In April, Siwan typically sees daytime highs of 37.1°C and overnight lows around 21.8°C. Compared to the annual average high of 31.0°C, April runs +6.1°C.
April in Siwan averages a daytime high of 37.1°C and an overnight low of 21.8°C.
April runs +6.1°C compared to Siwan's annual average high of 31.0°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 37.1°C and cooler evenings around 21.8°C.