Daily Report for 29th August 2026

Bad date specified. Defaulted to most recent report available.

Measure	Value (anomaly)	Time	Month cumul.	Record High	Record Low
Minimum Temperature	17.5 °C (+4.3)	11:22	15.3 °C (+1.2)	17.5 °C (+4.3), 2026	9.1 °C (-4.1), 2009
Maximum Temperature	20.8 °C (-0.8)	15:01	26.9 °C (+4.4)	25.3 °C (+3.8), 2017	14.7 °C (-6.9), 2020
Mean Temperature	18.6 °C (+1.8)		21.1 °C (+2.8)	20.6 °C, 2017	12.6 °C, 2020
Minimum Humidity	78%	00:12	40%	78%, 2026	41%, 2009
Maximum Humidity	88%	13:52	80%	95%, 2018	80%, 2017
Mean Humidity	83%		60%	84%, 2020	63%, 2013
Minimum Pressure	1001 hPa	17:17	1015 hPa	1025 hPa, 2021	995 hPa, 2025
Maximum Pressure	1010 hPa	00:38	1019 hPa	1027 hPa, 2021	1003 hPa, 2025
Mean Pressure	1006 hPa		1017 hPa	1026 hPa, 2021	998 hPa, 2025
Mean Wind Speed	6.3 mph (+2.3)		4.1 mph (+0.1)	7.2 mph, 2014	1.8 mph, 2018
Maximum Wind Speed	18.8 mph	15:28	12.7 mph	18.8 mph, 2026	7.0 mph, 2017
Maximum Gust	28.8 mph	15:31	19.7 mph	28.8 mph, 2026	12.5 mph, 2015
Mean Wind Direction	n/a		SSW	N, 2020	NE, 2021
Rainfall	3.4 mm		10.2 mm (20%)	19.2 mm, 2025	0.0 mm, 2009
Maximum Hourly Rain	1.4 mm	11:56	0.2 mm	7.0 mm, 2025	0.2 mm, 2020
Maximum 10-min Rain	0.8 mm	11:00	0.1 mm	2.0 mm, 2012	0.2 mm, 2020
Maximum Rain Rate	14 mm/h	11:56	0.7 mm/h	60 mm/h, 2012	3.6 mm/h, 2015
Minimum Dew Point	14.4 °C	02:03	9.8 °C	14.4 °C, 2026	3.0 °C, 2010
Maximum Dew Point	17.7 °C	14:39	14.9 °C	17.7 °C, 2026	10.0 °C, 2009
Mean Dew Point	15.7 °C		12.4 °C	15.7 °C, 2026	7.2 °C, 2009
Measure	Value	Time	Month cumul.	Record High	Record Low
Night Minimum (21-09)	17.8 °C	04:36	15.4 °C	17.8 °C, 2026	9.1 °C, 2009
Day Maximum (09-21)	20.8 °C	15:01	26.9 °C	25.3 °C, 2017	14.7 °C, 2020
Max 10m Temp Rise	0.5 °C	13:58	0.8 °C	0.8 °C, 2013	0.3 °C, 2020
Max 1hr Temp Rise	1.8 °C	14:52	2.9 °C	3.0 °C, 2013	1.2 °C, 2020
Max 1hr Hum Rise	5%	09:42	12%	21%, 2010	5%, 2011
Max 10m Temp Fall	0.6 °C	15:11	0.8 °C	1.8 °C, 2012	0.3 °C, 2015
Max 1hr Temp Fall	0.9 °C	11:27	2.4 °C	4.2 °C, 2012	0.8 °C, 2014
Max 1hr Hum Fall	7%	14:57	12%	37%, 2010	5%, 2020
Max 10m Wind Speed	14.2 mph	15:35	9.3 mph	14.2 mph, 2012	5.2 mph, 2018
Minimum Feels-like	21.1 °C	11:17	17.2 °C	21.1 °C, 2026	7.6 °C, 2009
Maximum Feels-like	26.3 °C	14:52	29.7 °C	28.9 °C, 2017	16.1 °C, 2020
Mean Feels-like	23.0 °C		23.8 °C	23.7 °C, 2017	13.8 °C, 2020
Air-frost Hrs	0 hrs		0 hrs	0 hrs, 2009	0 hrs, 2009
Minimum PM2.5	1.3 µg/m³	16:40	2.8 µg/m³	1.3 µg/m³, 2026	0.0 µg/m³, 2009
Maximum PM2.5	7.7 µg/m³	20:15	13.9 µg/m³	7.7 µg/m³, 2026	7.7 µg/m³, 2026
Mean PM2.5	3.1 µg/m³		6.3 µg/m³	3.1 µg/m³, 2026	3.1 µg/m³, 2026
Measure	Value (anomaly)		Month cumul.	Record High	Record Low
Temperature Range	3.3 °C (-5.1)		11.6 °C	10.2 °C, 2009	3.3 °C, 2026
Humidity Range	10%		40%	52%, 2009	10%, 2026
Pressure Range	8 hPa		5 hPa	12 hPa, 2020	2 hPa, 2011

Observation	Detail
Sun Hours	n/a
Wet Hours	n/a
Cloud Cover	not available
Events	None
Comments	None known
Observer Absent?	No
Pond Temperature	n/a

Notes: Detailed daily weather report for Hampstead, NW3, London on 29th August 2026. Times of extremes use the midpoint of the longest continuous period at that value. Cumulative anomalies are relative to the expected value for the month-to-date. Sun and wet hours are derived from webcam/rainfall analysis and may be adjusted. Data should be viewed with appropriate caution.

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Daily Graph of Conditions

Wind direction

Air pollution

Wind rose

Webcam Summary of Cloud Conditions

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