The climate in Hilo is tropical rainforest, characterized by warm temperatures and high rainfall.

Here is the monthly average temperature and rainfall information for Hilo:

• January: Average high temperature 79°F(26°C), low temperature 64°F(18°C), rainfall about 9.8 inches(249mm)
• February: Average high temperature 79°F(26°C), low temperature 64°F(18°C), rainfall about 9.5 inches(241mm)
• March: Average high temperature 79°F(26°C), low temperature 65°F(18°C), rainfall about 13.3 inches(338mm)
• April: Average high temperature 79°F(26°C), low temperature 66°F(19°C), rainfall about 15.5 inches(394mm)
• May: Average high temperature 80°F(27°C), low temperature 67°F(19°C), rainfall about 10.8 inches(274mm)
• June: Average high temperature 81°F(27°C), low temperature 68°F(20°C), rainfall about 8.7 inches(221mm)
• July: Average high temperature 81°F(27°C), low temperature 68°F(20°C), rainfall about 8.4 inches(213mm)
• August: Average high temperature 82°F(28°C), low temperature 69°F(21°C), rainfall about 9.0 inches(229mm)
• September: Average high temperature 82°F(28°C), low temperature 68°F(20°C), rainfall about 10.5 inches(267mm)
• October: Average high temperature 81°F(27°C), low temperature 68°F(20°C), rainfall about 13.5 inches(343mm)
• November: Average high temperature 80°F(27°C), low temperature 67°F(19°C), rainfall about 13.4 inches(341mm)
• December: Average high temperature 79°F(26°C), low temperature 65°F(18°C), rainfall about 10.7 inches(272mm)

Hilo experiences a high amount of rainfall throughout the year, particularly recording higher rainfall in spring and fall.

Natural disasters include Hawaii's unique earthquakes, volcanic activity, tsunamis, and hurricanes, and Hilo has suffered significant damage from past tsunamis.

Therefore, it is important to always check local weather alerts and safety guidelines.