Daily Report for 4th August 2026

Bad date specified. Defaulted to most recent report available.

Measure	Value (anomaly)	Time	Month cumul.	Record High	Record Low
Minimum Temperature	17.0 °C (+2.5)	05:28	15.3 °C (+0.8)	18.9 °C (+4.4), 2018	10.9 °C (-3.6), 2020
Maximum Temperature	30.8 °C (+7.6)	13:17	29.1 °C (+5.9)	30.8 °C (+7.6), 2026	19.4 °C (-3.8), 2023
Mean Temperature	23.6 °C (+5.0)		22.3 °C (+3.3)	23.6 °C, 2026	16.4 °C, 2010
Minimum Humidity	39%	12:19	34%	71%, 2023	36%, 2014
Maximum Humidity	87%	05:48	75%	96%, 2020	75%, 2014
Mean Humidity	64%		54%	83%, 2009	54%, 2014
Minimum Pressure	1010 hPa	08:06	1014 hPa	1022 hPa, 2018	1004 hPa, 2010
Maximum Pressure	1013 hPa	23:31	1018 hPa	1026 hPa, 2018	1011 hPa, 2010
Mean Pressure	1011 hPa		1016 hPa	1024 hPa, 2018	1008 hPa, 2010
Mean Wind Speed	5.6 mph (+1.6)		4.5 mph (+0.5)	9.7 mph, 2016	1.2 mph, 2021
Maximum Wind Speed	17.3 mph	16:35	13.4 mph	23.2 mph, 2016	6.4 mph, 2021
Maximum Gust	26.5 mph	16:08	19.6 mph	33.9 mph, 2016	11.4 mph, 2021
Mean Wind Direction	n/a		SSW	NNW, 2023	NNE, 2018
Rainfall	0.0 mm		0.0 mm (0%)	11.6 mm, 2011	0.0 mm, 2013
Maximum Hourly Rain	n/a		0.0 mm	4.4 mm, 2010	0.3 mm, 2012
Maximum 10-min Rain	n/a		0.0 mm	2.2 mm, 2010	0.3 mm, 2012
Maximum Rain Rate	n/a		0 mm/h	50 mm/h, 2010	15 mm/h, 2011
Minimum Dew Point	13.2 °C	10:39	9.7 °C	13.2 °C, 2026	6.8 °C, 2014
Maximum Dew Point	18.9 °C	16:49	15.1 °C	18.9 °C, 2026	12.0 °C, 2017
Mean Dew Point	15.9 °C		11.9 °C	15.9 °C, 2026	9.1 °C, 2014
Measure	Value	Time	Month cumul.	Record High	Record Low
Night Minimum (21-09)	17.0 °C	05:20	15.3 °C	18.9 °C, 2018	10.9 °C, 2020
Day Maximum (09-21)	30.8 °C	13:08	29.1 °C	30.8 °C, 2026	19.4 °C, 2023
Max 10m Temp Rise	0.9 °C	06:58	0.8 °C	1.0 °C, 2020	0.3 °C, 2009
Max 1hr Temp Rise	4.4 °C	07:45	3.3 °C	4.8 °C, 2020	0.7 °C, 2009
Max 1hr Hum Rise	11%	16:49	10%	27%, 2018	5%, 2009
Max 10m Temp Fall	1.0 °C	16:52	0.8 °C	1.0 °C, 2010	0.2 °C, 2009
Max 1hr Temp Fall	2.7 °C	16:55	2.5 °C	3.9 °C, 2018	0.6 °C, 2009
Max 1hr Hum Fall	21%	08:15	16%	23%, 2020	3%, 2009
Max 10m Wind Speed	13.5 mph	16:02	9.8 mph	16.8 mph, 2016	5.3 mph, 2021
Minimum Feels-like	20.7 °C	05:08	16.9 °C	23.6 °C, 2018	12.0 °C, 2020
Maximum Feels-like	36.0 °C	13:55	32.0 °C	36.0 °C, 2026	21.6 °C, 2015
Mean Feels-like	28.2 °C		24.7 °C	28.2 °C, 2026	18.8 °C, 2010
Air-frost Hrs	0 hrs		0 hrs	0 hrs, 2009	0 hrs, 2009
Minimum PM2.5	0.6 µg/m³	17:50	3.0 µg/m³	0.6 µg/m³, 2026	0.0 µg/m³, 2009
Maximum PM2.5	17.3 µg/m³	06:00	10.7 µg/m³	17.3 µg/m³, 2026	17.3 µg/m³, 2026
Mean PM2.5	8.3 µg/m³		6.3 µg/m³	8.3 µg/m³, 2026	8.3 µg/m³, 2026
Measure	Value (anomaly)		Month cumul.	Record High	Record Low
Temperature Range	13.8 °C (+5.1)		13.8 °C	13.8 °C, 2026	3.6 °C, 2011
Humidity Range	48%		41%	56%, 2020	20%, 2010
Pressure Range	2 hPa		4 hPa	7 hPa, 2025	2 hPa, 2009

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 4th 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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