Daily Report for 29th September 2026

Bad date specified. Defaulted to most recent report available.

Measure	Value (anomaly)	Time	Month cumul.	Record High	Record Low
Minimum Temperature	15.9 °C (+5.6)	01:51	13.3 °C (+1.7)	15.9 °C (+5.6), 2026	4.4 °C (-5.9), 2024
Maximum Temperature	24.0 °C (+6.9)	14:25	22.2 °C (+3.1)	26.9 °C (+9.8), 2011	14.6 °C (-2.5), 2024
Mean Temperature	19.9 °C (+6.3)		17.8 °C (+2.4)	19.9 °C, 2026	9.8 °C, 2024
Minimum Humidity	67%	12:40	54%	83%, 2014	42%, 2011
Maximum Humidity	90%	07:24	87%	96%, 2010	84%, 2016
Mean Humidity	81%		72%	90%, 2019	70%, 2016
Minimum Pressure	1011 hPa	23:44	1018 hPa	1032 hPa, 2015	993 hPa, 2019
Maximum Pressure	1021 hPa	00:15	1023 hPa	1036 hPa, 2015	1008 hPa, 2013
Mean Pressure	1016 hPa		1020 hPa	1034 hPa, 2015	998 hPa, 2019
Mean Wind Speed	4.2 mph (+0.3)		4.2 mph (+0.3)	11.4 mph, 2016	0.7 mph, 2025
Maximum Wind Speed	13.1 mph	14:49	12.4 mph	22.7 mph, 2016	5.6 mph, 2025
Maximum Gust	19.6 mph	14:48	20.4 mph	40.3 mph, 2016	9.2 mph, 2025
Mean Wind Direction	n/a		WSW	NW, 2023	N, 2022
Rainfall	0.0 mm		26.2 mm (54%)	11.7 mm, 2010	0.0 mm, 2009
Maximum Hourly Rain	n/a		0.4 mm	3.5 mm, 2010	0.0 mm, 2025
Maximum 10-min Rain	n/a		0.2 mm	1.8 mm, 2017	0.0 mm, 2025
Maximum Rain Rate	n/a		1.3 mm/h	26 mm/h, 2017	5 mm/h, 2014
Minimum Dew Point	13.1 °C	00:00	9.6 °C	13.1 °C, 2026	2.7 °C, 2012
Maximum Dew Point	18.2 °C	14:49	15.0 °C	18.2 °C, 2026	8.2 °C, 2018
Mean Dew Point	16.4 °C		12.4 °C	16.4 °C, 2026	6.0 °C, 2012
Measure	Value	Time	Month cumul.	Record High	Record Low
Night Minimum (21-09)	15.9 °C	02:00	13.8 °C	16.8 °C, 2016	4.4 °C, 2024
Day Maximum (09-21)	24.0 °C	14:25	22.1 °C	26.9 °C, 2011	14.6 °C, 2024
Max 10m Temp Rise	0.5 °C	09:02	0.7 °C	0.9 °C, 2018	0.3 °C, 2010
Max 1hr Temp Rise	1.9 °C	11:31	2.5 °C	3.9 °C, 2025	0.8 °C, 2019
Max 1hr Hum Rise	5%	01:01	8%	13%, 2018	3%, 2013
Max 10m Temp Fall	0.4 °C	15:07	0.5 °C	1.0 °C, 2017	0.2 °C, 2014
Max 1hr Temp Fall	0.8 °C	17:12	1.8 °C	3.4 °C, 2018	0.8 °C, 2026
Max 1hr Hum Fall	8%	09:29	11%	18%, 2012	6%, 2019
Max 10m Wind Speed	10.6 mph	14:50	9.1 mph	17.4 mph, 2016	4.0 mph, 2025
Minimum Feels-like	19.1 °C	00:00	14.8 °C	19.1 °C, 2026	3.5 °C, 2022
Maximum Feels-like	30.2 °C	14:22	25.4 °C	30.2 °C, 2026	15.2 °C, 2012
Mean Feels-like	24.8 °C		20.4 °C	24.8 °C, 2026	10.2 °C, 2024
Air-frost Hrs	0 hrs		0 hrs	0 hrs, 2009	0 hrs, 2009
Minimum PM2.5	2.2 µg/m³	00:01	1.4 µg/m³	2.2 µg/m³, 2026	0.0 µg/m³, 2009
Maximum PM2.5	38.7 µg/m³	14:45	15.0 µg/m³	38.7 µg/m³, 2026	38.7 µg/m³, 2026
Mean PM2.5	23.5 µg/m³		5.4 µg/m³	23.5 µg/m³, 2026	23.5 µg/m³, 2026
Measure	Value (anomaly)		Month cumul.	Record High	Record Low
Temperature Range	8.1 °C (+1.3)		8.9 °C	12.9 °C, 2011	4.1 °C, 2013
Humidity Range	23%		33%	54%, 2011	13%, 2014
Pressure Range	10 hPa		6 hPa	19 hPa, 2024	2 hPa, 2011

Observation	Detail
Sun Hours	6.1 hrs [57%]
Wet Hours	0 hrs
Cloud Cover	unknown
Events	None
Comments	blr
Observer Absent?	Yes - observations may be unreliable
Pond Temperature	17.0 °C

Notes: Detailed daily weather report for Hampstead, NW3, London on 29th 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

Full resolution images at up-to 5 minute intervals