Blouberg, Cape Town — weather records and climate since 2020

All-time records this station · since 2020
All-time records
All-time records · 13 Mar 2020 – 5 Nov 2026
Record Value When
Highest temperature 41.1 °C 11 Mar 2026 11:25
Lowest temperature 2.9 °C 30 Aug 2020 07:05
Strongest gust 123.1 km/h 18 Dec 2021 10:50
Sampled gust 123.1 km/h 18 Dec 2021 10:50
Highest wind speed 44.2 km/h 16 Nov 2024 03:50
Wettest day 77.2 mm 13 Jun 2022
Highest rain rate 160.1 mm/h 31 Jul 2025 03:20
Highest pressure 1,044 hPa 10 Jul 2023 11:15
Lowest pressure 997 hPa 10 May 2026 05:25
Highest humidity 99 % 23 May 2026 21:25
Lowest humidity 13 % 18 Apr 2021 11:35
Highest solar radiation 1,440 W/m² 21 Oct 2026 12:29
Highest UV index 9.9 21 Oct 2026 12:34
Legend

Each row is the most extreme value recorded over the selected period, with the date it occurred.

Wind and gusts — Average wind / Wind max: sustained wind (period mean and maximum). Sampled gust: highest gust among the recorded samples (~10 min), may miss brief peaks. Strongest gust: real peak tracked continuously by the station (empty for imported data).

This day in history
This day in history · 5 November
Highest temperature 30.3 °C 2025
Lowest temperature 10.6 °C 2021
Wettest day 23.0 mm 2020
Year Maximum Minimum Rain
2025 30.3 °C 18.3 °C 0.0 mm
2024 25.9 °C 13.8 °C 0.0 mm
2023 20.8 °C 13.7 °C 0.0 mm
2022 27.1 °C 15.9 °C 0.0 mm
2021 21.3 °C 10.6 °C 0.0 mm
2020 16.8 °C 13.5 °C 23.0 mm
Legend

What was recorded on today's calendar day (same day and month) in each year of the station history. It fills in year after year as the archive grows.

Climate normals · monthly averages since 2020
Climate normals · 13 Mar 2020 – 4 Nov 2026
Month Mean Mean of highs Mean of lows Rain
January 21.9 °C 26.7 °C 17.7 °C 2.3 mm
February 21.7 °C 26.6 °C 17.8 °C 8.5 mm
March 20.5 °C 25.6 °C 16.6 °C 18.9 mm
April 18.1 °C 23.3 °C 14.1 °C 30.4 mm
May 15.7 °C 20.6 °C 11.5 °C 55.3 mm
June 14.5 °C 19.4 °C 10.4 °C 110.0 mm
July 13.1 °C 17.9 °C 8.7 °C 98.5 mm
August 13.5 °C 18.3 °C 9.0 °C 73.1 mm
September 15.3 °C 20.1 °C 11.0 °C 40.6 mm
October 17.7 °C 22.7 °C 13.5 °C 11.8 mm
November 19.5 °C 24.1 °C 15.5 °C 16.6 mm
December 20.6 °C 25.1 °C 16.8 °C 14.2 mm
Legend

Average values for each calendar month over all the years available in the history; rainfall is the average monthly total. The more years recorded, the more representative the normals.

Year report

NOAA report · 2026
Mean temperature 17.6 °C
Mean of highs 22.4 °C
Mean of lows 13.6 °C
Highest temperature 41.1 °C 11 Mar 2026 11:25
Lowest temperature 5.2 °C 24 Jul 2026 07:45
Heating degree days 612.1
Cooling degree days 400.4
Rain total 264.4 mm
Wettest day 24.4 mm 23 May 2026
Rain days 80
Strongest gust 71.6 km/h 11 May 2026 07:50
Sampled gust 71.6 km/h 11 May 2026 07:50
Average wind 8.3 km/h
Maximum wind 41.9 km/h 4 Jan 2026 17:25
Prevailing direction S (187°)
Highest UV index 9.9 21 Oct 2026 12:34
Highest solar radiation 1,440 W/m² 21 Oct 2026 12:29
Month Mean Maximum Minimum HDD CDD Rain Wind Gust Dir. UV Solar
January 21.9 33.7 13.8 0.0 111.6 1.4 12.8 70.2 S — 1,252
February 22.0 35.4 13.9 0.0 103.6 20.4 10.9 56.5 S — 1,262
March 21.5 41.1 10.8 2.2 100.4 4.2 9.1 63.4 S — 1,154
April 18.0 33.6 8.6 45.3 35.1 77.2 6.1 51.1 SSW — 932
May 15.8 25.9 8.6 79.6 3.3 39.8 6.6 71.6 WSW — 814
June 14.1 28.3 5.4 124.8 0.0 33.8 6.6 56.5 S — 793
July 13.5 24.7 5.2 147.6 0.0 5.4 5.2 54.7 SSE — 756
August 14.5 29.3 5.7 118.4 1.9 9.6 6.9 51.1 S — 841
September 17.7 35.6 6.6 43.1 23.7 49.0 10.3 59.8 S 6.8 1,053
October 17.1 29.8 7.6 50.8 14.9 23.6 8.5 59.8 SSW 9.9 1,440
November 19.4 26.8 14.6 0.2 5.9 0.0 10.3 56.5 SSW 9.0 1,240
Legend

The NOAA report is an annual climate summary in the NOAA/Cumulus style: a recap of the year plus an optional month-by-month table.

Wind and gusts — Average wind / Wind max: sustained wind (period mean and maximum). Sampled gust: highest gust among the recorded samples (~10 min), may miss brief peaks. Strongest gust: real peak tracked continuously by the station (empty for imported data).

Degree days (base 18.3 °C): heating degree days (HDD) add up how far each day's mean temperature stayed below 18.3 °C (heating demand); cooling degree days (CDD) how far it stayed above 18.3 °C (cooling demand).

The daily mean is the average of the day's samples; rain days count days with at least 0.2 mm.

UV and solar columns show the day's peak UV index and peak solar radiation (W/m²); the summary reports the period's highest.

Explore the archive

Interactive report — open it on the published page to choose filters and report type.

Photos: A3alb (CC BY-SA 4.0) · Background photo: South African Tourism, CC BY 2.0 · Archive from March 2020 · extremes are the most extreme single reading; NOAA-style tables use daily means
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