Portland Long-term Averages

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Mean Max (°C)	21.8	21.9	20.7	18.4	16.1	14.1	13.6	14.4	15.8	17.3	18.8	20.5	17.8
Mean Min (°C)	12.7	13.1	12.0	10.3	8.7	7.5	6.5	6.9	7.8	8.9	10.3	11.6	9.7
Mean Rain (mm)	34.6	32.0	43.5	64.3	85.1	100.2	106.8	107.9	83.1	68.5	52.6	44.7	822.4
Median Rain (mm)	81.6	67.4	827.6	-	-	-	-	-	-	-	-	-	-
Mean Rain Days	8.2	7.6	10.9	14.4	18.0	19.4	21.0	21.0	18.0	15.6	12.3	10.8	176.4

Portland Daily Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max (°C)	42.8	40.6	40.9	33.9	27.8	20.8	21.1	24.4	28.3	36.0	38.9	41.7	42.8
Low Max (°C)	-	-	-	-	-	-	-	-	-	-	-	-	-
High Min (°C)	-	-	-	-	-	-	-	-	-	-	-	-	-
Low Min (°C)	4.4	3.3	2.0	1.1	-0.6	-2.2	-2.8	-1.7	-0.3	0.6	2.2	3.3	-2.8
High Rain (mm)	133.0	78.7	104.1	68.1	72.0	64.0	66.8	79.0	49.6	65.0	75.0	60.0	133.0

Portland Monthly Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Mn. Max (°C)	25.6	26.3	24.9	21.2	18.5	16.6	15.2	16.4	18.1	19.8	21.9	24.2	26.3
Low Mn. Max (°C)	19.1	18.3	17.7	15.5	12.8	11.9	11.9	12.4	12.1	13.3	16.4	17.8	11.9
High Mn. Min (°C)	16.1	16.1	15.4	12.3	10.8	9.9	9.3	9.4	11.3	12.8	13.6	13.6	16.1
Low Mn. Min (°C)	10.0	9.8	8.6	7.5	5.1	2.8	3.3	1.7	2.2	5.6	7.9	9.7	1.7
High Rain (mm)	145.0	135.5	340.8	174.3	212.4	211.2	236.2	227.2	171.6	165.5	136.9	145.2	1289.9
Low Rain (mm)	0.0	0.0	0.0	0.0	20.9	20.8	23.6	9.1	31.6	0.0	0.0	0.0	453.0

Portland Annual Temperatures & Rainfall

Portland Average Number of Days With Temperatures

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
≥ 40°C	-	-	-	-	-	-	-	-	-	-	-	-	-
≥ 35°C	-	-	-	-	-	-	-	-	-	-	-	-	-
≥ 30°C	-	-	-	-	-	-	-	-	-	-	-	-	-
≤ 2°C	-	-	-	-	-	-	-	-	-	-	-	-	-
≤ 0°C	-	-	-	-	-	-	-	-	-	-	-	-	-

Portland 'per Week' Values (14th/86th Percentiles)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max	-	-	-	-	-	-	-	-	-	-	-	-	-
Low Max	-	-	-	-	-	-	-	-	-	-	-	-	-
High Min	-	-	-	-	-	-	-	-	-	-	-	-	-
Low Min	-	-	-	-	-	-	-	-	-	-	-	-	-

Portland Data Availability

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Years of Minima	78	81	81	80	79	78	79	81	80	81	81	80	79.9
Earliest Entry	1863	1863	1863	1863	1863	1863	1863	1863	1863	1863	1863	1863	1863
Latest Entry	1956	1956	1956	1956	1956	1956	1956	1956	1956	1956	1956	1956	1956
Years of Maxima	78	81	81	80	80	78	80	81	80	81	81	80	80.1
Earliest Entry	1863	1863	1863	1863	1863	1863	1863	1863	1863	1863	1863	1863	1863
Latest Entry	1956	1956	1956	1956	1956	1956	1956	1956	1956	1956	1956	1956	1956
Years of Rainfall	138	138	137	131	129	129	127	129	132	133	135	136	130.0
Earliest Entry	1872	1872	1872	1872	1872	1872	1872	1872	1872	1872	1872	1872	1872
Latest Entry	2024	2024	2024	2024	2023	2023	2023	2023	2023	2023	2023	2023	2024

climate

Station Details

PORTLAND
South West, Victoria

38.3846°S 141.6074°E 55m AMSL
Commenced 1857

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

Weather News

» all stories

500km line of storms sweeping across the Goldfields,WA

12:04 AEST Over 32 thousand lightning strikes hit the Kalgoorlie region on Sunday and Monday, with more rainfall to come at the end of this week for the state’s southwest. The image below shows a 500km line of thunderstorms stretching between Leinster and Salmon Gums on Monday morning as the sun rises. Image: Himawari-9 satellite images for the three hours leading up to 8:20am AWST on Monday, May 6.