September is one of the warmer months of the year in Hollywood, with average highs near 29.1°C and lows around 27.4°C (mean 28.3°C). It is a relatively wet time of year, averaging 192 mm of rainfall and 78% relative humidity across the period.
September is one of the warmer months of the year in Hollywood. Across 45 years of records, the warmest September in Hollywood was 2024 — when the month averaged 29.6°C — while the coldest was 1984 at 27.1°C. Typical September days reach 29.1°C with nights near 27.4°C. The long-term trend is warming, about 0.3°C per decade.
September is a relatively wet time of year in Hollywood, averaging 192 mm of rainfall. The wettest September on record was 2001 with 326 mm, while the driest was 1988 at 61 mm.
Relative humidity in Hollywood during September averages 78%. The most humid September was 2004 at 81%, and the least humid was 2021 at 75%.
September receives about 4.8 kWh/m²/day of solar energy in Hollywood. The sunniest September was 2019 at 5.5 kWh/m²/day, and the cloudiest was 1994 at 4.2.
Average wind speed in Hollywood during September is 3.6 m/s. The windiest September was 2004 at 6.3 m/s, while the calmest was 1987 at 2.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.8°C | 28.1°C | 28.3°C | 28.5°C | 28.9°C | +1.1°C |
| Avg High | 28.6°C | 28.9°C | 29.2°C | 29.3°C | 29.9°C | +1.3°C |
| Avg Low | 27.0°C | 27.3°C | 27.3°C | 27.6°C | 28.0°C | +1°C |
| Avg Rain | 183 mm | 203 mm | 205 mm | 169 mm | 205 mm | +22 mm |
September temperatures in Hollywood have risen by about 1.5°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 22.4°C (2022) to a record high of 32°C (2024).
Rainfall in September is a relatively wet time of year, averaging 192 mm, with a wettest year of 326 mm.
A quieter season to visit Hollywood
If your dates are flexible, the more temperate months of February and December tend to be the most comfortable for visiting Hollywood. That said, September — with days averaging 29.1°C and nights around 27.4°C (mean 28.3°C) and higher rainfall (192 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 29.7°C | 28.7°C | 27.7°C | 32.0°C | 26.1°C | 205 mm | 80% | 2.9 m/s | 4.7 |
| 2024 🔥 | 30.5°C | 29.6°C | 28.7°C | 32.0°C | 27.7°C | 214 mm | 80% | 3.5 m/s | 4.8 |
| 2023 | 30.1°C | 29.2°C | 28.2°C | 31.2°C | 27.4°C | 211 mm | 76% | 3 m/s | 5.2 |
| 2022 | 29.9°C | 28.9°C | 27.9°C | 31.4°C | 22.4°C | 242 mm | 78% | 3.1 m/s | 5 |
| 2021 | 29.6°C | 28.6°C | 27.5°C | 31.0°C | 26.6°C | 150 mm | 75% | 2.7 m/s | 5.2 |
| 2020 | 29.5°C | 28.6°C | 27.7°C | 31.1°C | 26.0°C | 206 mm | 79% | 3.7 m/s | 4.9 |
| 2019 | 29.7°C | 28.6°C | 27.5°C | 31.5°C | 26.1°C | 74 mm | 77% | 5.7 m/s | 5.5 |
| 2018 | 29.4°C | 28.6°C | 27.9°C | 30.3°C | 26.5°C | 114 mm | 77% | 3.4 m/s | 5.1 |
| 2017 | 29.6°C | 28.8°C | 27.9°C | 30.4°C | 26.5°C | 233 mm | 78% | 4.1 m/s | 4.9 |
| 2016 | 29.3°C | 28.5°C | 27.8°C | 30.7°C | 26.3°C | 181 mm | 78% | 2.7 m/s | 4.7 |
| 2015 | 29.7°C | 28.8°C | 27.8°C | 30.8°C | 26.4°C | 207 mm | 78% | 2.5 m/s | 4.4 |
| 2014 | 29.0°C | 28.1°C | 27.3°C | 30.2°C | 26.1°C | 166 mm | 78% | 2.9 m/s | 4.5 |
| 2013 | 28.9°C | 28.0°C | 27.2°C | 30.0°C | 26.0°C | 132 mm | 79% | 3.2 m/s | 4.4 |
| 2012 | 28.9°C | 28.0°C | 27.1°C | 31.0°C | 25.8°C | 164 mm | 77% | 3.4 m/s | 4.9 |
| 2011 | 29.5°C | 28.6°C | 27.7°C | 30.9°C | 26.5°C | 161 mm | 77% | 3 m/s | 5.1 |
| 2010 | 29.4°C | 28.6°C | 27.7°C | 30.9°C | 25.2°C | 258 mm | 78% | 4.3 m/s | 4.9 |
| 2009 | 29.3°C | 28.5°C | 27.7°C | 30.8°C | 26.8°C | 205 mm | 77% | 2.7 m/s | 4.8 |
| 2008 | 28.8°C | 28.0°C | 27.1°C | 29.9°C | 25.6°C | 178 mm | 79% | 4.3 m/s | 4.8 |
| 2007 | 29.3°C | 28.4°C | 27.5°C | 31.3°C | 25.4°C | 236 mm | 77% | 3.4 m/s | 4.8 |
| 2006 | 29.3°C | 28.3°C | 27.3°C | 30.5°C | 25.8°C | 176 mm | 76% | 3.1 m/s | 5.1 |
| 2005 | 29.5°C | 28.4°C | 27.2°C | 30.7°C | 26.1°C | 162 mm | 79% | 3.8 m/s | 4.9 |
| 2004 | 28.9°C | 28.1°C | 27.3°C | 30.2°C | 25.9°C | 263 mm | 81% | 6.3 m/s | 4.5 |
| 2003 | 29.2°C | 28.3°C | 27.4°C | 30.4°C | 26.6°C | 198 mm | 80% | 3.4 m/s | 4.8 |
| 2002 | 29.2°C | 28.4°C | 27.6°C | 30.0°C | 26.3°C | 148 mm | 80% | 3.8 m/s | 4.8 |
| 2001 🌧️ | 28.6°C | 27.6°C | 26.7°C | 30.3°C | 23.2°C | 326 mm | 79% | 3.5 m/s | 4.4 |
| 2000 | 29.4°C | 28.5°C | 27.6°C | 30.5°C | 26.2°C | 156 mm | 78% | 3.2 m/s | 4.9 |
| 1999 | 29.2°C | 28.1°C | 27.1°C | 31.7°C | 25.1°C | 201 mm | 78% | 4.2 m/s | 4.6 |
| 1998 | 29.3°C | 28.6°C | 27.9°C | 31.2°C | 26.6°C | 292 mm | 78% | 4.4 m/s | 4.5 |
| 1997 | 28.4°C | 27.6°C | 26.9°C | 29.3°C | 25.9°C | 266 mm | 81% | 3.6 m/s | 4.6 |
| 1996 | 29.2°C | 28.2°C | 27.3°C | 30.3°C | 26.1°C | 148 mm | 77% | 3.5 m/s | 5.2 |
| 1995 | 29.2°C | 28.3°C | 27.5°C | 30.2°C | 26.4°C | 188 mm | 77% | 3.3 m/s | 4.7 |
| 1994 | 28.2°C | 27.6°C | 27.0°C | 29.7°C | 25.8°C | 297 mm | 79% | 3.5 m/s | 4.2 |
| 1993 | 28.9°C | 28.2°C | 27.5°C | 30.3°C | 25.9°C | 169 mm | 77% | 3.8 m/s | 4.6 |
| 1992 | 28.5°C | 27.8°C | 27.1°C | 29.3°C | 25.4°C | 136 mm | 78% | 3.9 m/s | 4.6 |
| 1991 | 28.8°C | 28.1°C | 27.4°C | 29.7°C | 25.2°C | 182 mm | 77% | 3.3 m/s | 4.9 |
| 1990 | 29.0°C | 28.3°C | 27.5°C | 30.3°C | 26.2°C | 147 mm | 75% | 3.1 m/s | 5 |
| 1989 | 29.2°C | 28.4°C | 27.5°C | 30.5°C | 25.9°C | 128 mm | 77% | 3.6 m/s | 5.3 |
| 1988 | 28.9°C | 28.1°C | 27.4°C | 29.4°C | 26.2°C | 61 mm | 77% | 4.6 m/s | 5.2 |
| 1987 | 29.2°C | 28.4°C | 27.5°C | 31.1°C | 26.2°C | 233 mm | 76% | 2.4 m/s | 4.5 |
| 1986 | 28.8°C | 28.0°C | 27.2°C | 29.8°C | 26.6°C | 122 mm | 76% | 3.7 m/s | 5.2 |
| 1985 | 27.9°C | 27.2°C | 26.5°C | 29.0°C | 25.3°C | 226 mm | 80% | 4.6 m/s | 4.8 |
| 1984 ❄️ | 27.9°C | 27.1°C | 26.2°C | 28.9°C | 24.5°C | 255 mm | 78% | 4.5 m/s | 4.7 |
| 1983 | 28.5°C | 27.8°C | 27.1°C | 30.0°C | 24.8°C | 196 mm | 79% | 4 m/s | — |
| 1982 | 28.6°C | 27.8°C | 27.0°C | 29.8°C | 24.8°C | 174 mm | 76% | 3.3 m/s | — |
| 1981 | 28.6°C | 27.8°C | 26.9°C | 29.7°C | 25.5°C | 252 mm | 77% | 3.5 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 29.1°C with lows near 27.4°C (mean 28.3°C), based on 45 years of NASA POWER data.
September averages 192 mm of rainfall in Hollywood, a relatively wet time of year. The wettest on record was 326 mm in 2001.
The hottest September reached 32°C in 2024. The coldest dipped to 22.4°C in 2022.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.5°C. Daytime highs moved from 28.3°C to 30°C and overnight lows from 26.7°C to 28°C over the same span.
September is one of the warmer months of the year in Hollywood and a relatively wet time of year, so plan for around 29.1°C daytime highs and 27.4°C at night.
Not quite — September is the 10th coolest month in Hollywood, averaging 28.3°C.
For September in Hollywood, pack light layers you can adjust through the day, with typical highs of 29.1°C and lows of 27.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 78% — quite humid.
Average wind speed in September is 3.6 m/s. The windiest September on record averaged 6.3 m/s (2004).
The wettest September on record was 2001 with 326 mm. On average, September sees 192 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 Hollywood 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.
