| Basin: | Aus |
| Year: | 1971 |
| Track: | 1970-1971 Australian cyclone season summary.jpg |
| First Storm Formed: | 31 October 1970 |
| Last Storm Dissipated: | 29 March 1971 |
| Strongest Storm Name: | Sophie |
| Strongest Storm Pressure: | 925 |
| Strongest Storm Winds: | 115 |
| Average Wind Speed: | 10 |
| Total Depressions: | 21 |
| Total Hurricanes: | 21 |
| Total Intense: | 10 |
| Five Seasons: | 1968–69, 1969–70, 1970–71, 1971–72, 1972–73 |
| South Indian Season: | 1970–71 South-West Indian Ocean cyclone season |
| Australian Season: | 1970–71 South Pacific cyclone season |
The 1970–71 Australian region cyclone season was the second most active tropical cyclone season in the Australian Region.
| Basin: | Aus |
| Track: | Andrea-Claudine 1970 track.png |
| Formed: | October 31 |
| Dissipated: | November 10 (Crossed 80°E) |
| 10-Min Winds: | 70 |
| 1-Min Winds: | 40 |
| Pressure: | 970 |
Andrea, 31 October to 11 November 1970 in central Indian Ocean
| Basin: | Aus |
| Track: | Carmen 1970 track.png |
| Formed: | November 20 |
| Dissipated: | November 26 (Crossed 80°E) |
| 10-Min Winds: | 45 |
| 1-Min Winds: | 35 |
| Pressure: | 990 |
Tropical Cyclone Carmen developed on November 20 and left the basin on November 26.
| Basin: | Aus |
| Track: | Beverley-Eva 1970 track.png |
| Formed: | November 26 |
| Dissipated: | December 7 |
| 10-Min Winds: | 70 |
| 1-Min Winds: | 75 |
| Pressure: | 970 |
Beverley, 26 November to 1 December 1970 in Arafura Sea. The decayed storm developed into Eva.
| Basin: | Aus |
| Track: | Hilary-Dominique 1970 track.png |
| Formed: | December 11 |
| Dissipated: | December 17 (Crossed 80°E) |
| 10-Min Winds: | 65 |
| 1-Min Winds: | 55 |
| Pressure: | 974 |
Severe Tropical Cyclone Dominique-Hilary developed on December 11 and left the basin on December 17.
| Basin: | Aus |
| Track: | Janet 1970 track.png |
| Formed: | December 19 |
| Dissipated: | December 25 |
| 10-Min Winds: | 60 |
| 1-Min Winds: | 35 |
| Pressure: | 980 |
Janet, 19 to 25 December 1970 in central Indian Ocean
| Basin: | Aus |
| Track: | Loris 1970 track.png |
| Formed: | December 26 |
| Dissipated: | December 31 |
| 10-Min Winds: | 60 |
| 1-Min Winds: | 60 |
| Pressure: | 980 |
Loris, 26 to 31 December 1970 crossed the Pilbara coast near Mandora with no serious damage.
| Basin: | Aus |
| Track: | Myrtle-Ginette 1971 track.png |
| Formed: | January 15 |
| Dissipated: | January 18 (Crossed 80°E) |
| 10-Min Winds: | 65 |
| 1-Min Winds: | 55 |
| Pressure: | 976 |
Myrtle-Ginette, 15 to 18 January 1971 near Cocos Island and moved west
| Basin: | Aus |
| Track: | Polly Aus 1971 track.png |
| Formed: | January 20 |
| Dissipated: | January 29 |
| 10-Min Winds: | 60 |
| Pressure: | 980 |
Polly formed in the Indian Ocean west of the Keeling Islands and existed from 20 to 29 January.[1]
| Basin: | Aus |
| Track: | Rita 1971 track.png |
| Formed: | January 22 |
| Dissipated: | January 30 |
| 10-Min Winds: | 60 |
| 1-Min Winds: | 60 |
| Pressure: | 980 |
Rita existed from 23 to 30 January 1971 passed over Exmouth, Western Australia with flood damage only.
| Basin: | Aus |
| Track: | Shiela-Sophie 1971 track.png |
| Formed: | January 29 |
| Dissipated: | February 4 |
| 10-Min Winds: | 115 |
| 1-Min Winds: | 125 |
| Pressure: | 925 |
Sophie, 29 January to 6 February 1971 crossed the coast near Roebourne, Western Australia, while doing some damage.
| Basin: | Aus |
| Track: | Aggie 1971 track.png |
| Formed: | February 1 |
| Dissipated: | February 4 |
| 10-Min Winds: | 55 |
| 1-Min Winds: | 55 |
| Pressure: | 984 |
Aggie, 1 to 4 February 1971 in Gulf of Carpentaria and Arnhem Land
| Basin: | Aus |
| Track: | Dora 1971 track.png |
| Formed: | February 10 |
| Dissipated: | February 17 |
| 10-Min Winds: | 45 |
| 1-Min Winds: | 45 |
| Pressure: | 990 |
Cyclone Dora formed in the Coral sea east of Proserpine on February 10, 1971, it took a southeasterly track over the next 4 days away from the QLD coast turning into a low-pressure system well east of the QLD NSW border. On February 17 the system reintensified into a cyclone east of the Gold Coast and crossed the coast north of Brisbane at Redcliffe. Widespread structural damage was reported with power lines down and roofs removed.[2]
| Basin: | Aus |
| Track: | Tilly-Iphigenie 1971 track.png |
| Formed: | February 10 |
| Dissipated: | February 14 |
| 10-Min Winds: | 70 |
| 1-Min Winds: | 75 |
| Pressure: | 970 |
Severe Tropical Cyclone Tilly-Iphigenie existed from February 10 to February 14.
| Basin: | Aus |
| Track: | Gertie 1971 track.png |
| Formed: | February 11 |
| Dissipated: | February 16 |
| 10-Min Winds: | 55 |
| 1-Min Winds: | 55 |
| Pressure: | 983 |
Gertie, 11 to 16 February 1971 crossed near Townsville, Queensland.
| Basin: | Aus |
| Track: | Ida 1971 track.png |
| Formed: | February 15 |
| Dissipated: | February 18 (Crossed 160°E) |
| 10-Min Winds: | 60 |
| 1-Min Winds: | 60 |
| Pressure: | 980 |
Ida, 15 to 22 February 1971 in Coral Sea
| Basin: | Aus |
| Track: | Kalinka 1971 track.png |
| Formed: | February 16 |
| Dissipated: | February 18 (Crossed 80°E) |
| 10-Min Winds: | 45 |
| 1-Min Winds: | 45 |
| Basin: | Aus |
| Track: | Fiona 1971 track.png |
| Formed: | February 16 |
| Dissipated: | February 28 |
| 10-Min Winds: | 85 |
| 1-Min Winds: | 85 |
| Pressure: | 960 |
Severe Tropical Cyclone Fiona existed from February 16 to February 28.
| Basin: | Aus |
| Track: | Yvonne-Lise 1971 track.png |
| Formed: | February 19 |
| Dissipated: | February 23 (Crossed 80°E) |
| 10-Min Winds: | 65 |
| 1-Min Winds: | 55 |
| Pressure: | 975 |
Severe Tropical Cyclone Yvonne-Lise developed on February 19 and left the basin on February 23.
| Basin: | Aus |
| Track: | Maggie-Muriel 1971 track.png |
| Formed: | March 7 |
| Dissipated: | March 13 (Crossed 80°E) |
| 10-Min Winds: | 85 |
| 1-Min Winds: | 85 |
| Pressure: | 960 |
Severe Tropical Cyclone Maggie-Muriel developed on March 7 and left the basin on March 13.
| Basin: | Aus |
| Track: | Lena 1971 track.png |
| Formed: | March 13 |
| Dissipated: | March 18 (Crossed 160°E) |
| 10-Min Winds: | 60 |
| 1-Min Winds: | 60 |
| Pressure: | 980 |
Lena, 13 to 20 March 1971 near New Caledonia
| Basin: | Aus |
| Track: | Mavis 1971 track.png |
| Formed: | March 23 |
| Dissipated: | March 29 |
| 10-Min Winds: | 65 |
| 1-Min Winds: | 70 |
| Pressure: | 975 |
Mavis, 23 to 29 March 1971 crossed coast near Denham, Western Australia causing flooding.