Daily Report for 27th August 2026

Bad date specified. Defaulted to most recent report available.

Measure	Value (anomaly)	Time	Month cumul.	Record High	Record Low
Minimum Temperature	18.8 °C (+5.4)	03:19	15.3 °C (+1.1)	18.8 °C (+5.4), 2026	10.5 °C (-2.9), 2014
Maximum Temperature	25.1 °C (+3.4)	17:08	27.2 °C (+4.6)	31.7 °C (+10.0), 2019	17.3 °C (-4.4), 2010
Mean Temperature	20.7 °C (+4.4)		21.3 °C (+2.9)	24.1 °C, 2019	14.0 °C, 2010
Minimum Humidity	61%	17:28	38%	70%, 2020	39%, 2019
Maximum Humidity	90%	07:57	79%	98%, 2010	73%, 2017
Mean Humidity	79%		59%	85%, 2010	58%, 2017
Minimum Pressure	1008 hPa	17:05	1015 hPa	1023 hPa, 2021	1002 hPa, 2020
Maximum Pressure	1013 hPa	00:21	1020 hPa	1026 hPa, 2021	1009 hPa, 2025
Mean Pressure	1010 hPa		1018 hPa	1024 hPa, 2021	1007 hPa, 2025
Mean Wind Speed	3.2 mph (-0.8)		3.9 mph (-0.1)	6.3 mph, 2025	1.4 mph, 2017
Maximum Wind Speed	11.2 mph	17:33	12.3 mph	20.4 mph, 2025	6.1 mph, 2017
Maximum Gust	16.1 mph	16:52	19.1 mph	32.3 mph, 2025	9.4 mph, 2017
Mean Wind Direction	n/a		SSW	NW, 2023	N, 2010
Rainfall	4.4 mm		6.4 mm (14%)	4.8 mm, 2020	0.0 mm, 2009
Maximum Hourly Rain	1.8 mm	06:27	0.1 mm	2.6 mm, 2025	0.2 mm, 2023
Maximum 10-min Rain	0.8 mm	05:49	0.1 mm	2.4 mm, 2025	0.2 mm, 2023
Maximum Rain Rate	3.6 mm/h	06:48	0.2 mm/h	42 mm/h, 2015	2.3 mm/h, 2010
Minimum Dew Point	13.4 °C	21:21	9.5 °C	14.0 °C, 2019	6.4 °C, 2013
Maximum Dew Point	19.1 °C	14:45	14.7 °C	19.1 °C, 2026	12.8 °C, 2011
Mean Dew Point	16.7 °C		12.2 °C	16.7 °C, 2026	10.5 °C, 2013
Measure	Value	Time	Month cumul.	Record High	Record Low
Night Minimum (21-09)	18.8 °C	02:56	15.3 °C	18.8 °C, 2026	10.5 °C, 2014
Day Maximum (09-21)	25.1 °C	17:08	27.2 °C	31.7 °C, 2019	17.3 °C, 2010
Max 10m Temp Rise	0.6 °C	15:33	0.8 °C	0.9 °C, 2022	0.4 °C, 2015
Max 1hr Temp Rise	2.0 °C	13:35	3.0 °C	3.6 °C, 2019	1.6 °C, 2010
Max 1hr Hum Rise	6%	23:11	12%	16%, 2019	4%, 2018
Max 10m Temp Fall	0.4 °C	17:47	0.7 °C	0.7 °C, 2013	0.2 °C, 2014
Max 1hr Temp Fall	1.6 °C	18:35	2.4 °C	3.5 °C, 2017	0.8 °C, 2014
Max 1hr Hum Fall	11%	13:15	12%	18%, 2014	6%, 2017
Max 10m Wind Speed	8.7 mph	17:41	9.0 mph	13.3 mph, 2025	4.2 mph, 2017
Minimum Feels-like	22.8 °C	23:57	17.1 °C	22.8 °C, 2026	11.5 °C, 2014
Maximum Feels-like	30.7 °C	15:33	29.9 °C	37.9 °C, 2019	19.1 °C, 2010
Mean Feels-like	25.8 °C		23.8 °C	29.0 °C, 2019	15.8 °C, 2011
Air-frost Hrs	0 hrs		0 hrs	0 hrs, 2009	0 hrs, 2009
Minimum PM2.5	1.6 µg/m³	23:50	2.9 µg/m³	1.6 µg/m³, 2026	0.0 µg/m³, 2009
Maximum PM2.5	43.6 µg/m³	03:30	14.2 µg/m³	43.6 µg/m³, 2026	43.6 µg/m³, 2026
Mean PM2.5	15.9 µg/m³		6.6 µg/m³	15.9 µg/m³, 2026	15.9 µg/m³, 2026
Measure	Value (anomaly)		Month cumul.	Record High	Record Low
Temperature Range	6.3 °C (-2.0)		12.0 °C	15.6 °C, 2019	4.7 °C, 2020
Humidity Range	29%		41%	52%, 2013	24%, 2020
Pressure Range	4 hPa		5 hPa	17 hPa, 2020	3 hPa, 2022

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 27th 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.

View monthly summary

Daily Graph of Conditions

Wind direction

Air pollution

Wind rose

Webcam Summary of Cloud Conditions

Full resolution images at up-to 5 minute intervals