September is one of the warmer months of the year in Kendal, with average highs near 14.7°C and lows around 8.1°C (mean 11.4°C). It is about average for rainfall, averaging 101 mm of rainfall and 89% relative humidity across the period.
September is one of the warmer months of the year in Kendal. Across 45 years of records, the warmest September in Kendal was 2006 — when the month averaged 13.9°C — while the coldest was 1986 at 9.2°C. Typical September days reach 14.7°C with nights near 8.1°C. The long-term trend is warming, about 0.3°C per decade.
September is about average for rainfall in Kendal, averaging 101 mm of rainfall. The wettest September on record was 2025 with 185 mm, while the driest was 1986 at 24 mm.
Relative humidity in Kendal during September averages 89%. The most humid September was 2008 at 92%, and the least humid was 1991 at 86%.
September receives about 2.8 kWh/m²/day of solar energy in Kendal. The sunniest September was 2015 at 3.3 kWh/m²/day, and the cloudiest were 2000, 2001 and 2008, among others at 2.4.
Average wind speed in Kendal during September is 3.3 m/s. The windiest Septembers were 1983 and 2004 at 4.2 m/s, while the calmest was 2014 at 2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.8°C | 11.0°C | 11.8°C | 11.4°C | 12.2°C | +1.4°C |
| Avg High | 13.9°C | 14.4°C | 15.0°C | 14.7°C | 15.7°C | +1.8°C |
| Avg Low | 7.6°C | 7.7°C | 8.5°C | 8.1°C | 8.7°C | +1.1°C |
| Avg Rain | 107 mm | 91 mm | 99 mm | 103 mm | 109 mm | +2 mm |
September temperatures in Kendal have risen by about 1.3°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 0.3°C (1986) to a record high of 23.7°C (2021).
Rainfall in September is about average for rainfall, averaging 101 mm, with a wettest year of 185 mm.
One of the best times to visit Kendal
September is one of the best times to visit Kendal. Expect days averaging 14.7°C and nights around 8.1°C (mean 11.4°C) — warmer than Kendal's yearly average — with higher rainfall (101 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🌧️ | 14.7°C | 11.5°C | 8.2°C | 18.0°C | 1.9°C | 185 mm | 89% | 3.4 m/s | 2.7 |
| 2024 | 14.8°C | 11.3°C | 7.9°C | 20.5°C | 3.1°C | 82 mm | 89% | 3.3 m/s | 2.8 |
| 2023 | 17.1°C | 13.6°C | 10.2°C | 23.4°C | 5.5°C | 147 mm | 90% | 3.3 m/s | 2.8 |
| 2022 | 15.6°C | 11.9°C | 8.2°C | 20.5°C | 2.8°C | 97 mm | 89% | 2.9 m/s | 2.8 |
| 2021 | 17.1°C | 13.6°C | 10.1°C | 23.7°C | 5.7°C | 69 mm | 90% | 2.7 m/s | 2.8 |
| 2020 | 14.7°C | 11.2°C | 7.7°C | 21.2°C | 2.0°C | 76 mm | 89% | 3.5 m/s | 2.8 |
| 2019 | 14.7°C | 11.5°C | 8.2°C | 18.8°C | 4.5°C | 140 mm | 90% | 3.3 m/s | 2.8 |
| 2018 | 13.9°C | 10.7°C | 7.4°C | 19.7°C | 3.1°C | 101 mm | 89% | 3.9 m/s | 2.7 |
| 2017 | 13.9°C | 11.0°C | 8.2°C | 18.6°C | 4.6°C | 145 mm | 92% | 3.3 m/s | 2.5 |
| 2016 | 16.5°C | 13.2°C | 9.9°C | 22.5°C | 6.9°C | 95 mm | 90% | 3.5 m/s | 2.7 |
| 2015 | 14.4°C | 10.4°C | 6.4°C | 18.2°C | 3.4°C | 45 mm | 89% | 2.6 m/s | 3.3 |
| 2014 | 16.7°C | 12.5°C | 8.2°C | 19.7°C | 6.0°C | 25 mm | 88% | 2 m/s | 3 |
| 2013 | 14.2°C | 11.0°C | 7.7°C | 19.0°C | 4.8°C | 72 mm | 90% | 3.2 m/s | 2.5 |
| 2012 | 13.1°C | 10.1°C | 7.1°C | 18.9°C | 1.4°C | 146 mm | 91% | 3.9 m/s | 2.7 |
| 2011 | 14.9°C | 12.0°C | 9.1°C | 21.6°C | 4.9°C | 128 mm | 90% | 4.1 m/s | 2.7 |
| 2010 | 14.9°C | 11.6°C | 8.3°C | 18.4°C | 2.6°C | 133 mm | 89% | 3.6 m/s | 2.8 |
| 2009 | 14.5°C | 11.6°C | 8.7°C | 19.2°C | 5.3°C | 69 mm | 90% | 3.6 m/s | 2.7 |
| 2008 | 14.0°C | 11.2°C | 8.4°C | 16.7°C | 5.4°C | 132 mm | 92% | 3 m/s | 2.4 |
| 2007 | 14.3°C | 10.9°C | 7.4°C | 19.1°C | 1.9°C | 83 mm | 90% | 3.5 m/s | 2.8 |
| 2006 🔥 | 17.4°C | 13.9°C | 10.4°C | 22.3°C | 5.4°C | 112 mm | 90% | 3.2 m/s | 2.9 |
| 2005 | 15.4°C | 12.2°C | 8.9°C | 21.6°C | 4.2°C | 95 mm | 89% | 3.7 m/s | 2.8 |
| 2004 | 14.8°C | 11.8°C | 8.7°C | 22.0°C | 4.6°C | 98 mm | 91% | 4.2 m/s | 2.9 |
| 2003 | 15.3°C | 11.6°C | 7.8°C | 19.2°C | 2.9°C | 92 mm | 89% | 2.5 m/s | 2.9 |
| 2002 | 15.5°C | 11.7°C | 8.0°C | 18.9°C | 5.3°C | 45 mm | 89% | 2.2 m/s | 3 |
| 2001 | 14.0°C | 11.0°C | 7.9°C | 17.7°C | 5.4°C | 98 mm | 90% | 3.7 m/s | 2.4 |
| 2000 | 15.2°C | 11.8°C | 8.4°C | 21.3°C | 4.0°C | 165 mm | 91% | 3.1 m/s | 2.4 |
| 1999 | 16.3°C | 12.8°C | 9.4°C | 22.3°C | 4.8°C | 119 mm | 90% | 3.1 m/s | 2.8 |
| 1998 | 15.2°C | 12.2°C | 9.1°C | 20.7°C | 5.1°C | 109 mm | 91% | 3.2 m/s | 2.9 |
| 1997 | 14.4°C | 11.0°C | 7.7°C | 16.9°C | 4.3°C | 68 mm | 90% | 3.4 m/s | 2.9 |
| 1996 | 14.6°C | 11.1°C | 7.7°C | 21.0°C | 5.1°C | 52 mm | 87% | 3.4 m/s | 2.8 |
| 1995 | 14.5°C | 10.9°C | 7.3°C | 18.7°C | 1.2°C | 108 mm | 89% | 2.8 m/s | 2.7 |
| 1994 | 12.7°C | 9.7°C | 6.7°C | 17.0°C | 2.5°C | 106 mm | 90% | 3.4 m/s | 2.8 |
| 1993 | 13.2°C | 9.9°C | 6.6°C | 19.4°C | 1.9°C | 81 mm | 89% | 3.5 m/s | 2.4 |
| 1992 | 13.7°C | 10.7°C | 7.8°C | 20.4°C | 5.0°C | 124 mm | 90% | 3.8 m/s | 2.9 |
| 1991 | 15.6°C | 11.5°C | 7.4°C | 21.4°C | 2.9°C | 63 mm | 86% | 3.4 m/s | 3.2 |
| 1990 | 13.5°C | 10.3°C | 7.1°C | 17.5°C | 3.4°C | 76 mm | 87% | 3.4 m/s | 2.5 |
| 1989 | 14.7°C | 11.3°C | 7.9°C | 19.1°C | 4.7°C | 38 mm | 88% | 3.3 m/s | 2.6 |
| 1988 | 13.3°C | 10.5°C | 7.7°C | 21.5°C | 1.2°C | 113 mm | 90% | 4 m/s | 2.4 |
| 1987 | 13.4°C | 10.5°C | 7.7°C | 17.9°C | 1.5°C | 128 mm | 89% | 3.5 m/s | 2.8 |
| 1986 ❄️ | 12.8°C | 9.2°C | 5.5°C | 17.2°C | 0.3°C | 24 mm | 86% | 2.9 m/s | 3.2 |
| 1985 | 14.6°C | 11.5°C | 8.4°C | 19.0°C | 4.0°C | 132 mm | 92% | 3.4 m/s | 2.6 |
| 1984 | 13.7°C | 10.7°C | 7.7°C | 18.9°C | 4.0°C | 155 mm | 88% | 3.3 m/s | 2.6 |
| 1983 | 13.3°C | 10.2°C | 7.2°C | 17.2°C | 2.6°C | 126 mm | 89% | 4.2 m/s | — |
| 1982 | 14.8°C | 11.4°C | 8.1°C | 21.2°C | 4.3°C | 102 mm | 89% | 3.7 m/s | — |
| 1981 | 14.9°C | 11.6°C | 8.4°C | 19.3°C | 4.4°C | 147 mm | 89% | 3.6 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 14.7°C with lows near 8.1°C (mean 11.4°C), based on 45 years of NASA POWER data.
September averages 101 mm of rainfall in Kendal, about average for rainfall. The wettest on record was 185 mm in 2025.
The hottest September reached 23.7°C in 2021. The coldest dipped to 0.3°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.3°C. Daytime highs moved from 14.3°C to 15.9°C and overnight lows from 8°C to 8.9°C over the same span.
September is one of the warmer months of the year in Kendal and about average for rainfall, so plan for around 14.7°C daytime highs and 8.1°C at night.
Not quite — September is the 9th coolest month in Kendal, averaging 11.4°C.
For September in Kendal, pack light layers you can adjust through the day, with typical highs of 14.7°C and lows of 8.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 89% — quite humid.
Average wind speed in September is 3.3 m/s. The windiest September on record averaged 4.2 m/s (1983).
The wettest September on record was 2025 with 185 mm. On average, September sees 101 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Kendal behaves each September, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for September specifically, along with year-by-year records and how the month has changed over the decades.
