0–9

• 2021 Pacific hurricane season (8 P)

A

• 2021 Atlantic hurricane season (1 C, 14 P)

I

• Hurricane Ida (4 P)

N

• 2021 North Indian Ocean cyclone season (6 P)

P

• 2021 Pacific typhoon season (15 P)

S

• 2020–21 Southern Hemisphere tropical cyclone season (3 C, 1 P)
• 2021–22 Southern Hemisphere tropical cyclone season (3 C, 1 P)

• Tropical cyclones in 2021

0–9

• 2020–21 South-West Indian Ocean cyclone season
• 2021 Atlantic hurricane season
• 2020–21 Australian region cyclone season
• 2021 Pacific hurricane season
• 2021 North Indian Ocean cyclone season
• 2021 Pacific typhoon season

A

• Cyclone Ana
• Cyclone Apollo

B

• Storm Blas

C

• Typhoon Cempaka
• Typhoon Chanthu (2021)
• Tropical Storm Choi-wan (2021)
• Tropical Storm Claudette (2021)
• Tropical Storm Conson

D

• Tropical Storm Danny (2021)
• Tropical Storm Dianmu (2021)
• Tropical Storm Dolores (2021)
• Tropical Storm Dujuan (2021)

E

• Cyclone Eloise
• Hurricane Elsa

F

• Tropical Storm Fred (2021)

G

• Hurricane Grace
• Cyclone Guambe
• Cyclones Gulab and Shaheen

H

• Hurricane Henri

I

• Hurricane Ida
• Cyclone Imogen
• Typhoon In-fa

J

• Cyclone Jawad

K

• Cyclone Kimi
• Tropical Storm Koguma
• Tropical Storm Kompasu

L

• Tropical Storm Lionrock (2021)
• Tropical Storm Lupit (2021)

M

• Tropical Storm Mindy

N

• Hurricane Nicholas
• Cyclone Niran
• Hurricane Nora (2021)

O

• Hurricane Olaf (2021)

P

• Hurricane Pamela

R

• Typhoon Rai
• Hurricane Rick (2021)
• Cyclone Ruby

S

• Hurricane Sam
• Cyclone Seroja
• Cyclone Seth
• Typhoon Surigae

T

• Cyclone Tauktae

U

• Subtropical Storm Ubá

W

• October 2021 nor'easter

Y

• Cyclone Yaas