Daily Report for 13th August 2026

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Measure	Value (anomaly)	Time	Month cumul.	Record High	Record Low
Minimum Temperature	16.4 °C (+2.1)	06:02	14.8 °C (+0.3)	18.1 °C (+3.8), 2020	10.8 °C (-3.5), 2019
Maximum Temperature	35.8 °C (+13.1)	16:12	28.7 °C (+5.7)	35.8 °C (+13.1), 2026	18.1 °C (-4.6), 2010
Mean Temperature	26.7 °C (+7.6)		22.0 °C (+3.0)	26.7 °C, 2026	14.3 °C, 2010
Minimum Humidity	24%	16:11	32%	69%, 2015	24%, 2026
Maximum Humidity	82%	06:14	78%	94%, 2018	70%, 2017
Mean Humidity	48%		54%	87%, 2015	48%, 2026
Minimum Pressure	1020 hPa	18:49	1017 hPa	1021 hPa, 2016	1004 hPa, 2014
Maximum Pressure	1025 hPa	00:02	1022 hPa	1025 hPa, 2026	1008 hPa, 2014
Mean Pressure	1022 hPa		1019 hPa	1022 hPa, 2026	1005 hPa, 2014
Mean Wind Speed	2.1 mph (-1.9)		4.0 mph (-0.0)	7.4 mph, 2023	1.6 mph, 2017
Maximum Wind Speed	11.1 mph	17:07	12.8 mph	20.7 mph, 2025	6.8 mph, 2017
Maximum Gust	15.0 mph	15:12	19.1 mph	29.0 mph, 2016	10.0 mph, 2009
Mean Wind Direction	n/a		SSW	NNW, 2017	NNE, 2020
Rainfall	0.0 mm		0.0 mm (0%)	10.4 mm, 2015	0.0 mm, 2012
Maximum Hourly Rain	n/a		0.0 mm	5.0 mm, 2015	0.2 mm, 2018
Maximum 10-min Rain	n/a		0.0 mm	2.5 mm, 2010	0.2 mm, 2018
Maximum Rain Rate	n/a		0 mm/h	30 mm/h, 2010	0.6 mm/h, 2020
Minimum Dew Point	10.6 °C	23:50	8.8 °C	16.9 °C, 2020	4.5 °C, 2017
Maximum Dew Point	16.3 °C	08:51	14.2 °C	20.8 °C, 2020	9.6 °C, 2017
Mean Dew Point	13.4 °C		11.4 °C	18.5 °C, 2020	6.9 °C, 2017
Measure	Value	Time	Month cumul.	Record High	Record Low
Night Minimum (21-09)	16.4 °C	06:03	14.9 °C	20.1 °C, 2020	10.8 °C, 2019
Day Maximum (09-21)	35.8 °C	16:13	28.7 °C	35.8 °C, 2026	18.1 °C, 2010
Max 10m Temp Rise	1.0 °C	07:15	0.9 °C	1.0 °C, 2009	0.4 °C, 2015
Max 1hr Temp Rise	4.1 °C	07:41	3.5 °C	4.1 °C, 2026	1.3 °C, 2009
Max 1hr Hum Rise	12%	20:47	11%	18%, 2019	5%, 2016
Max 10m Temp Fall	1.1 °C	20:13	0.8 °C	1.2 °C, 2009	0.3 °C, 2015
Max 1hr Temp Fall	4.3 °C	21:00	2.8 °C	4.3 °C, 2026	1.0 °C, 2015
Max 1hr Hum Fall	14%	10:43	14%	15%, 2013	6%, 2021
Max 10m Wind Speed	7.7 mph	17:08	9.1 mph	12.5 mph, 2023	4.4 mph, 2017
Minimum Feels-like	19.1 °C	05:51	16.2 °C	23.3 °C, 2020	11.6 °C, 2019
Maximum Feels-like	38.9 °C	14:07	31.0 °C	38.9 °C, 2026	20.4 °C, 2013
Mean Feels-like	29.7 °C		24.1 °C	29.7 °C, 2026	16.4 °C, 2013
Air-frost Hrs	0 hrs		0 hrs	0 hrs, 2009	0 hrs, 2009
Minimum PM2.5	4.8 µg/m³	16:15	2.6 µg/m³	4.8 µg/m³, 2026	0.0 µg/m³, 2009
Maximum PM2.5	11.6 µg/m³	07:00	11.6 µg/m³	11.6 µg/m³, 2026	11.6 µg/m³, 2026
Mean PM2.5	6.8 µg/m³		5.3 µg/m³	6.8 µg/m³, 2026	6.8 µg/m³, 2026
Measure	Value (anomaly)		Month cumul.	Record High	Record Low
Temperature Range	19.4 °C (+11.0)		14.0 °C	19.4 °C, 2026	4.2 °C, 2015
Humidity Range	58%		46%	58%, 2026	23%, 2025
Pressure Range	5 hPa		5 hPa	12 hPa, 2015	1 hPa, 2010

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 13th 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

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Air pollution

Wind rose

Webcam Summary of Cloud Conditions

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