Daily Report for 8th September 2026

Bad date specified. Defaulted to most recent report available.

Measure	Value (anomaly)	Time	Month cumul.	Record High	Record Low
Minimum Temperature	12.8 °C (+0.5)	23:59	14.6 °C (+2.1)	17.4 °C (+5.1), 2023	6.9 °C (-5.4), 2019
Maximum Temperature	18.1 °C (-2.3)	00:22	22.9 °C (+2.0)	29.7 °C (+9.3), 2023	16.0 °C (-4.4), 2015
Mean Temperature	15.3 °C (-0.9)		18.8 °C (+2.0)	23.2 °C, 2023	12.1 °C, 2019
Minimum Humidity	64%	00:12	52%	80%, 2022	24%, 2012
Maximum Humidity	90%	09:55	85%	97%, 2022	82%, 2016
Mean Humidity	80%		70%	91%, 2022	54%, 2012
Minimum Pressure	1007 hPa	14:02	1016 hPa	1025 hPa, 2015	996 hPa, 2017
Maximum Pressure	1015 hPa	00:11	1021 hPa	1031 hPa, 2015	1007 hPa, 2017
Mean Pressure	1011 hPa		1019 hPa	1028 hPa, 2015	1000 hPa, 2017
Mean Wind Speed	4.0 mph (+0.1)		5.4 mph (+1.5)	6.6 mph, 2016	0.7 mph, 2024
Maximum Wind Speed	10.6 mph	17:46	14.3 mph	22.3 mph, 2016	5.9 mph, 2014
Maximum Gust	17.3 mph	17:09	24.3 mph	33.9 mph, 2016	7.6 mph, 2014
Mean Wind Direction	n/a		W	N, 2019	NNE, 2014
Rainfall	15.8 mm		17.8 mm (134%)	15.8 mm, 2026	0.0 mm, 2009
Maximum Hourly Rain	2.4 mm	09:32	0.6 mm	6.0 mm, 2024	0.6 mm, 2013
Maximum 10-min Rain	0.6 mm	06:55	0.3 mm	4.1 mm, 2010	0.5 mm, 2021
Maximum Rain Rate	3.6 mm/h	12:13	2.2 mm/h	50 mm/h, 2010	3.6 mm/h, 2021
Minimum Dew Point	8.9 °C	23:59	10.7 °C	16.1 °C, 2023	4.0 °C, 2012
Maximum Dew Point	13.9 °C	14:14	15.3 °C	21.7 °C, 2023	8.9 °C, 2019
Mean Dew Point	11.8 °C		12.9 °C	18.6 °C, 2023	6.5 °C, 2019
Measure	Value	Time	Month cumul.	Record High	Record Low
Night Minimum (21-09)	14.2 °C	07:22	15.3 °C	17.8 °C, 2016	6.9 °C, 2019
Day Maximum (09-21)	16.3 °C	17:27	22.6 °C	29.7 °C, 2023	16.0 °C, 2015
Max 10m Temp Rise	0.6 °C	17:18	0.6 °C	1.2 °C, 2012	0.3 °C, 2011
Max 1hr Temp Rise	1.9 °C	17:16	2.2 °C	4.9 °C, 2012	1.0 °C, 2017
Max 1hr Hum Rise	9%	02:44	8%	16%, 2013	4%, 2020
Max 10m Temp Fall	0.7 °C	14:26	0.6 °C	1.4 °C, 2013	0.3 °C, 2015
Max 1hr Temp Fall	1.8 °C	15:14	1.9 °C	4.0 °C, 2012	1.1 °C, 2018
Max 1hr Hum Fall	11%	17:26	10%	18%, 2013	5%, 2015
Max 10m Wind Speed	7.3 mph	01:50	10.5 mph	17.7 mph, 2016	4.1 mph, 2014
Minimum Feels-like	13.6 °C	23:59	16.6 °C	22.1 °C, 2023	5.3 °C, 2019
Maximum Feels-like	20.1 °C	02:44	26.3 °C	38.2 °C, 2023	17.1 °C, 2015
Mean Feels-like	17.5 °C		21.6 °C	29.8 °C, 2023	11.8 °C, 2019
Air-frost Hrs	0 hrs		0 hrs	0 hrs, 2009	0 hrs, 2009
Minimum PM2.5	1.8 µg/m³	01:50	1.2 µg/m³	1.8 µg/m³, 2026	0.0 µg/m³, 2009
Maximum PM2.5	13.0 µg/m³	23:45	10.3 µg/m³	13.0 µg/m³, 2026	13.0 µg/m³, 2026
Mean PM2.5	4.0 µg/m³		3.6 µg/m³	4.0 µg/m³, 2026	4.0 µg/m³, 2026
Measure	Value (anomaly)		Month cumul.	Record High	Record Low
Temperature Range	5.3 °C (-2.8)		8.2 °C	17.2 °C, 2012	5.3 °C, 2022
Humidity Range	26%		33%	60%, 2012	17%, 2022
Pressure Range	8 hPa		6 hPa	11 hPa, 2017	2 hPa, 2023

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 8th September 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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