Home / Perth / 21 January 2019
Perth
Australia · 21 January 2019
← 20 January 201922 January 2019 →
Average
23.1°C
low 20.6°C · high 26.2°C
Rainfall
0mm
dry day
Wind
5.9m/s
daily average
Humidity
74.1%
daily average
Cloud
9%
cover
Pressure
1010hPa
daily average
The temperature ranged from 20.6°C around 04:00 to 26.2°C around 15:00. No measurable rain was recorded during the day.
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
24th percentile
Low temperature
64th percentile
Rainfall
81th percentile
Wind
69th percentile
A percentile of 100 means this was the hottest/wettest/windiest of the comparable days on file; 50 is right in the middle. This window's average temperature was 24.4°C, versus 23.1°C on this specific day.
Sun & daylight
Sunrise
05:31
Sunset
19:24
Day length
13h 54m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — Australia/Perth.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 16:00 | 22.5°C | 22.9°C | 0 | 4.3 | SSW | 84 | 1010 |
| 01:00 | 17:00 | 21.5°C | 22°C | 0 | 4.1 | SSW | 88 | 1010 |
| 02:00 | 18:00 | 21.2°C | 21.9°C | 0 | 3.7 | SSW | 89 | 1010 |
| 03:00 | 19:00 | 20.9°C | 21.9°C | 0 | 3.4 | SSW | 91 | 1009 |
| 04:00 | 20:00 | 20.6°C | 21.7°C | 0 | 3.3 | SSW | 93 | 1009 |
| 05:00 | 21:00 | 20.8°C | 21.7°C | 0 | 3.6 | SSW | 93 | 1009 |
| 06:00 | 22:00 | 21.1°C | 20.8°C | 0 | 5 | SSW | 88 | 1010 |
| 07:00 | 23:00 | 23°C | 23.1°C | 0 | 5.3 | SSW | 84 | 1010 |
| 08:00 | 00:00 | 24°C | 24.6°C | 0 | 4.6 | SSW | 80 | 1011 |
| 09:00 | 01:00 | 24.3°C | 24.5°C | 0 | 4.4 | SSW | 73 | 1011 |
| 10:00 | 02:00 | 24.8°C | 24.2°C | 0 | 5.3 | SSW | 69 | 1011 |
| 11:00 | 03:00 | 24.7°C | 23°C | 0 | 6.4 | SW | 67 | 1011 |
| 12:00 | 04:00 | 26°C | 23.5°C | 0 | 7.1 | SW | 59 | 1011 |
| 13:00 | 05:00 | 25.8°C | 22.7°C | 0 | 7.4 | SSW | 55 | 1010 |
| 14:00 | 06:00 | 26°C | 22.6°C | 0 | 7.5 | SSW | 53 | 1010 |
| 15:00 | 07:00 | 26.2°C | 22.4°C | 0 | 7.6 | SSW | 50 | 1009 |
| 16:00 | 08:00 | 25.5°C | 21.7°C | 0 | 8 | SSW | 54 | 1009 |
| 17:00 | 09:00 | 25.4°C | 21.6°C | 0 | 8.2 | SSW | 56 | 1009 |
| 18:00 | 10:00 | 23.8°C | 20.4°C | 0 | 8 | SSW | 65 | 1009 |
| 19:00 | 11:00 | 21.7°C | 18.7°C | 0 | 7.6 | SSW | 75 | 1009 |
| 20:00 | 12:00 | 21.3°C | 18.6°C | 0 | 7.3 | SSW | 77 | 1009 |
| 21:00 | 13:00 | 21.2°C | 18.9°C | 0 | 6.9 | SSW | 78 | 1010 |
| 22:00 | 14:00 | 21°C | 18.6°C | 0 | 7 | SSW | 79 | 1009 |
| 23:00 | 15:00 | 20.8°C | 18.6°C | 0 | 6.6 | SSW | 80 | 1009 |
Nearby cities
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Data source & coverage — ERA5 reanalysis, 2016–2025 (10 years)details
- Source
- ERA5 reanalysis, accessed via the Copernicus Climate Change Service (C3S) Climate Data Store
- Data type
- Reanalysis — a physically consistent reconstruction combining a forecast model with historical observations, not a live station reading or a forecast
- Coverage
- 2016–2025 (10 years) for Australia
- Location
- Perth — -32.000°, 115.750°, ERA5 grid cell center, 11.8 km from requested point
- Time zone
- Australia/Perth
- What's shown here
- The hourly and daily record for 21 January 2019 specifically — not a monthly average. See the Perth climate overview for typical conditions.
- Spatial resolution
- 0.25° (~25 km) distributed grid — ERA5's native model resolution is finer; this is the publicly distributed regridded product
- Version / refreshed
- Methodology v2026.07 · data last refreshed December 31, 2025
- Limitations
- A model reconstruction, not a station observation — hyper-local extremes (a single storm cell, an urban heat pocket) can differ from a nearby gauge. See the full methodology.
- Attribution
- Generated using Copernicus Climate Change Service information
Cite this data
PastClimate (2026-07-21). Historical climate data for Perth, Australia (-32.00°S, 115.75°E), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Perth, Australia [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Perth, Australia." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 21, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Perth, Australia},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-21},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.