To prevent hypothermia while fishing in the rain, it's essential to wear appropriate clothing. Start with a waterproof and breathable outer layer to keep rain out while allowing sweat to evaporate. Underneath, layer up with moisture-wicking materials like polyester or merino wool to stay dry and warm. Consider wearing insulated waterproof boots and waterproof gloves to protect your extremities. It's also crucial to bring a change of clothes in a waterproof bag in case you get wet. Additionally, stay hydrated and have warm drinks and high-energy snacks to maintain your body temperature. Lastly, take breaks in a sheltered area to warm up if you start feeling cold.

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Topics covered in this question:

Safety Precautions Clothing Tips Hypothermia Prevention Rain Fishing