Swan Island Long-term Averages

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Mean Max (°C)	21.2	21.3	20.5	18.3	15.9	14.1	13.3	13.6	14.7	16.0	17.9	19.6	17.2
Mean Min (°C)	15.2	15.5	14.6	12.8	10.8	9.3	8.5	8.4	9.2	10.3	12.0	13.5	11.7
Mean Rain (mm)	42.0	38.9	54.1	45.7	55.4	57.1	61.0	54.8	49.9	48.6	56.6	46.6	602.7
Median Rain (mm)	27.0	41.2	28.8	38.1	33.6	61.8	56.5	51.8	47.2	50.8	57.3	25.6	619.9
Mean Rain Days	7.8	8.0	9.3	12.6	15.0	16.5	17.4	17.0	13.3	11.8	11.3	9.8	147.5

Swan Island Daily Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max (°C)	31.9	30.3	29.7	24.5	21.6	18.0	17.6	18.1	21.4	23.0	29.7	28.4	31.9
Low Max (°C)	16.2	14.9	14.2	11.5	10.4	10.1	9.3	9.2	10.5	11.2	12.5	13.1	9.2
High Min (°C)	20.6	20.1	20.3	18.8	16.5	15.2	13.4	12.8	13.7	15.3	16.9	18.8	20.6
Low Min (°C)	8.6	8.7	6.8	6.1	4.3	2.8	3.1	2.2	3.1	3.8	4.6	6.7	2.2
High Rain (mm)	160.8	73.2	121.2	53.6	51.2	40.2	56.2	41.0	29.8	34.8	80.4	62.4	160.8

Swan Island Monthly Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Mn. Max (°C)	22.7	22.7	22.1	19.6	17.1	15.2	14.0	14.9	15.8	17.4	19.4	21.1	17.8
Low Mn. Max (°C)	19.3	19.8	19.2	16.4	14.4	13.0	12.5	12.7	13.3	14.5	16.7	18.2	16.5
High Mn. Min (°C)	16.5	16.8	16.0	13.9	12.4	10.3	9.9	10.1	10.5	11.2	13.2	14.7	12.2
Low Mn. Min (°C)	13.5	14.2	13.1	10.4	9.0	7.6	7.4	7.1	7.8	8.9	10.7	11.9	10.8
High Rain (mm)	182.0	130.4	183.4	100.4	176.8	135.6	109.2	147.6	100.0	110.2	145.2	118.2	966.8
Low Rain (mm)	0.8	5.0	10.0	13.6	13.0	16.2	0.0	0.0	0.0	5.4	5.8	5.2	306.8

Swan Island Annual Temperatures & Rainfall

Swan Island Average Number of Days With Temperatures

	Jan	Feb	Ann
≥ 40°C	0.0	0.0	0.0
≥ 35°C	0.0	0.0	0.0
≥ 30°C	0.1	0.1	0.2
≤ 2°C	0.0	0.0	0.0
≤ 0°C	0.0	0.0	0.0

Swan Island 'per Week' Values (14th/86th Percentiles)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max	23.1	22.9	22.2	20.1	17.6	15.7	14.3	14.5	15.8	17.7	19.5	21.2	20.7
Low Max	18.5	18.8	18.3	16.2	13.9	12.5	11.9	12.3	13.0	14.1	15.4	17.3	13.3
High Min	16.8	17.4	16.5	15.1	13.7	12.0	10.7	10.7	11.0	12.3	13.8	15.4	15.2
Low Min	12.3	13.0	11.7	10.2	8.1	6.6	6.1	5.8	6.7	7.7	9.7	10.7	7.8

Swan Island Data Availability

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Years of Minima	24	24	23	23	23	23	23	22	22	23	24	24	23.0
Earliest Entry	2002	2002	2002	2002	2002	2002	2002	2002	2002	2001	2001	2001	2001
Latest Entry	2025	2025	2025	2024	2024	2024	2024	2024	2024	2024	2024	2024	2025
Years of Maxima	24	24	23	23	23	23	23	23	23	23	24	24	23.0
Earliest Entry	2002	2002	2002	2002	2002	2002	2002	2002	2002	2001	2001	2001	2001
Latest Entry	2025	2025	2025	2024	2024	2024	2024	2024	2024	2024	2024	2024	2025
Years of Rainfall	23	23	23	23	23	23	23	22	21	22	23	23	23.0
Earliest Entry	2002	2002	2002	2002	2002	2002	2002	2002	2002	2001	2001	2001	2001
Latest Entry	2025	2025	2025	2024	2024	2024	2024	2024	2024	2024	2024	2024	2025

Station Details

SWAN ISLAND
Northeast, Tasmania

40.7292°S 148.1250°E 15m AMSL
Commenced 2001

Enter a postcode or town name for local weather, or text to search the site. » advanced search

Weather News

» all stories

How a West Australian cyclone saturated Queensland

16:52 AEDT Heavy rain and flood warnings are in the news again today in Queensland – including in Brisbane and the heavily populated southeast corner of the state – due to the remnants of Tropical Cyclone Dianne.