Daily Report for 15th August 2026

Bad date specified. Defaulted to most recent report available.

Measure	Value (anomaly)	Time	Month cumul.	Record High	Record Low
Minimum Temperature	19.8 °C (+5.5)	07:05	15.3 °C (+0.9)	19.8 °C (+5.5), 2026	11.5 °C (-2.8), 2016
Maximum Temperature	28.2 °C (+5.6)	15:53	29.1 °C (+6.1)	29.8 °C (+7.2), 2025	19.9 °C (-2.7), 2015
Mean Temperature	23.8 °C (+5.6)		22.5 °C (+3.5)	23.8 °C, 2026	15.8 °C, 2014
Minimum Humidity	48%	14:42	33%	90%, 2020	39%, 2022
Maximum Humidity	78%	23:52	77%	97%, 2010	76%, 2011
Mean Humidity	61%		54%	93%, 2020	58%, 2017
Minimum Pressure	1017 hPa	02:22	1017 hPa	1024 hPa, 2025	1002 hPa, 2012
Maximum Pressure	1020 hPa	23:45	1022 hPa	1028 hPa, 2025	1007 hPa, 2022
Mean Pressure	1018 hPa		1019 hPa	1026 hPa, 2025	1004 hPa, 2022
Mean Wind Speed	3.8 mph (-0.2)		3.9 mph (-0.1)	6.9 mph, 2019	2.0 mph, 2020
Maximum Wind Speed	9.9 mph	09:44	12.3 mph	18.4 mph, 2024	8.3 mph, 2020
Maximum Gust	17.3 mph	05:10	18.4 mph	27.6 mph, 2019	11.8 mph, 2014
Mean Wind Direction	n/a		SSW	NNW, 2014	NNE, 2010
Rainfall	0.0 mm		0.0 mm (0%)	9.1 mm, 2022	0.0 mm, 2009
Maximum Hourly Rain	n/a		0.0 mm	9.1 mm, 2022	0.2 mm, 2015
Maximum 10-min Rain	n/a		0.0 mm	7.0 mm, 2022	0.2 mm, 2015
Maximum Rain Rate	n/a		0 mm/h	114 mm/h, 2022	3.1 mm/h, 2012
Minimum Dew Point	13.1 °C	06:33	9.2 °C	15.9 °C, 2020	5.7 °C, 2015
Maximum Dew Point	17.5 °C	10:33	14.6 °C	19.0 °C, 2020	11.5 °C, 2011
Mean Dew Point	15.6 °C		11.9 °C	17.3 °C, 2020	8.7 °C, 2011
Measure	Value	Time	Month cumul.	Record High	Record Low
Night Minimum (21-09)	19.8 °C	07:06	15.4 °C	19.8 °C, 2026	11.5 °C, 2016
Day Maximum (09-21)	28.2 °C	15:54	29.1 °C	29.8 °C, 2025	19.9 °C, 2015
Max 10m Temp Rise	0.6 °C	09:11	0.9 °C	0.8 °C, 2011	0.2 °C, 2020
Max 1hr Temp Rise	2.4 °C	09:20	3.5 °C	3.5 °C, 2016	0.8 °C, 2020
Max 1hr Hum Rise	16%	21:48	12%	29%, 2022	3%, 2020
Max 10m Temp Fall	0.5 °C	14:47	0.8 °C	1.4 °C, 2022	0.2 °C, 2020
Max 1hr Temp Fall	1.6 °C	21:48	2.7 °C	4.8 °C, 2022	0.4 °C, 2020
Max 1hr Hum Fall	9%	11:22	13%	16%, 2015	3%, 2020
Max 10m Wind Speed	6.9 mph	12:58	8.8 mph	14.5 mph, 2024	5.1 mph, 2020
Minimum Feels-like	22.8 °C	06:28	16.9 °C	22.8 °C, 2026	11.6 °C, 2015
Maximum Feels-like	33.1 °C	15:53	31.8 °C	34.8 °C, 2025	21.2 °C, 2015
Mean Feels-like	28.2 °C		24.9 °C	28.2 °C, 2026	17.4 °C, 2015
Air-frost Hrs	0 hrs		0 hrs	0 hrs, 2009	0 hrs, 2009
Minimum PM2.5	2.0 µg/m³	05:32	2.6 µg/m³	2.0 µg/m³, 2026	0.0 µg/m³, 2009
Maximum PM2.5	11.9 µg/m³	10:50	12.5 µg/m³	11.9 µg/m³, 2026	11.9 µg/m³, 2026
Mean PM2.5	5.5 µg/m³		5.8 µg/m³	5.5 µg/m³, 2026	5.5 µg/m³, 2026
Measure	Value (anomaly)		Month cumul.	Record High	Record Low
Temperature Range	8.4 °C (+0.1)		13.8 °C	12.9 °C, 2025	3.6 °C, 2020
Humidity Range	30%		44%	53%, 2022	5%, 2020
Pressure Range	3 hPa		5 hPa	11 hPa, 2014	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 15th 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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