Go Online: The resources on this site are aimed at children 7+, but with some help from an adult, they may be suitable for your child - https://www.metoffice.gov.uk/weather/learn-about/met-office-for-schools/resources-for-7-11
Do: Create your own weather chart for a week, a month or even for the whole year!
Go Online: Sun safety tips - https://lajollamom.com/uv-sun-safety-kids/
Read:
Dorling Kindersley First Facts: Seasons by Marie Greenwood
Thinking About the Seasons: Autumn by Clare Collinson
Thinking About the Seasons: Winter by Clare Collinson
Thinking About the Seasons: Spring by Clare Collinson
Thinking About the Seasons: Summer by Clare Collinson
Poems about Seasons by Brian Moses