February is one of the warmer months of the year in Halfmoon Bay, with average highs near 15.2°C and lows around 11.6°C (mean 13.4°C). It is about average for rainfall, averaging 94 mm of rainfall and 81% relative humidity across the period.
February is one of the warmer months of the year in Halfmoon Bay. Across 45 years of records, the warmest February in Halfmoon Bay was 2023 — when the month averaged 15.4°C — while the coldest was 2004 at 11.8°C. Typical February days reach 15.2°C with nights near 11.6°C. The long-term February temperature trend is broadly flat.
February is about average for rainfall in Halfmoon Bay, averaging 94 mm of rainfall. The wettest February on record was 2004 with 167 mm, while the driest was 2025 at 44 mm.
Relative humidity in Halfmoon Bay during February averages 81%. The most humid February was 2005 at 85%, and the least humid was 2019 at 77%.
February receives about 5 kWh/m²/day of solar energy in Halfmoon Bay. The sunniest Februarys were 1999, 2010 and 2023 at 5.6 kWh/m²/day, and the cloudiest were 1987, 2011 and 2018 at 4.5.
Average wind speed in Halfmoon Bay during February is 3.8 m/s. The windiest February was 2004 at 5.1 m/s, while the calmest was 1984 at 2.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.3°C | 13.5°C | 13.0°C | 13.5°C | 14.0°C | +0.7°C |
| Avg High | 15.1°C | 15.4°C | 14.8°C | 15.4°C | 15.9°C | +0.8°C |
| Avg Low | 11.5°C | 11.7°C | 11.2°C | 11.6°C | 12.0°C | +0.5°C |
| Avg Rain | 105 mm | 97 mm | 97 mm | 88 mm | 80 mm | -24 mm |
February temperatures in Halfmoon Bay have risen by about 1°C between 1981–1985 and 2021–2025.
February has ranged from a record low of 6.6°C (1983) to a record high of 23.8°C (2023).
Rainfall in February is about average for rainfall, averaging 94 mm, with a wettest year of 167 mm.
One of the best times to visit Halfmoon Bay
February is one of the best times to visit Halfmoon Bay. Expect days averaging 15.2°C and nights around 11.6°C (mean 13.4°C) — warmer than Halfmoon Bay's yearly average — with higher rainfall (94 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 | 16.2°C | 14.3°C | 12.5°C | 21.0°C | 10.4°C | 44 mm | 81% | 3.2 m/s | 5.5 |
| 2024 | 15.1°C | 13.3°C | 11.5°C | 19.0°C | 8.5°C | 117 mm | 80% | 4.3 m/s | 4.8 |
| 2023 🔥 | 17.5°C | 15.4°C | 13.4°C | 23.8°C | 9.6°C | 83 mm | 80% | 3.1 m/s | 5.6 |
| 2022 | 15.8°C | 13.8°C | 11.7°C | 21.9°C | 9.2°C | 66 mm | 78% | 3.2 m/s | 5.3 |
| 2021 | 15.6°C | 13.6°C | 11.7°C | 19.8°C | 8.2°C | 76 mm | 83% | 3.2 m/s | 5.4 |
| 2020 | 15.1°C | 13.3°C | 11.4°C | 19.5°C | 9.1°C | 96 mm | 83% | 3.9 m/s | 4.9 |
| 2019 | 16.3°C | 14.2°C | 12.1°C | 21.3°C | 8.4°C | 79 mm | 77% | 4.2 m/s | 5.4 |
| 2018 | 15.5°C | 14.1°C | 12.6°C | 19.5°C | 10.1°C | 117 mm | 79% | 4.3 m/s | 4.5 |
| 2017 | 15.0°C | 13.1°C | 11.2°C | 20.1°C | 8.9°C | 66 mm | 80% | 3.7 m/s | 5.5 |
| 2016 | 16.4°C | 14.4°C | 12.4°C | 21.5°C | 9.2°C | 117 mm | 82% | 3.8 m/s | 5.1 |
| 2015 | 14.8°C | 12.9°C | 11.1°C | 18.7°C | 7.9°C | 88 mm | 82% | 3.6 m/s | 5.2 |
| 2014 | 15.0°C | 13.1°C | 11.1°C | 19.3°C | 8.9°C | 83 mm | 83% | 3.4 m/s | 5.1 |
| 2013 | 15.7°C | 13.9°C | 12.1°C | 20.1°C | 9.2°C | 52 mm | 81% | 3.4 m/s | 5.1 |
| 2012 | 14.5°C | 12.7°C | 10.9°C | 18.1°C | 8.4°C | 78 mm | 83% | 3 m/s | 4.8 |
| 2011 | 15.0°C | 12.9°C | 10.9°C | 18.5°C | 8.4°C | 128 mm | 81% | 3.7 m/s | 4.5 |
| 2010 | 15.5°C | 13.6°C | 11.7°C | 19.1°C | 9.3°C | 76 mm | 80% | 3.6 m/s | 5.6 |
| 2009 | 13.4°C | 11.9°C | 10.3°C | 20.6°C | 8.5°C | 67 mm | 81% | 4.2 m/s | 4.6 |
| 2008 | 15.8°C | 13.9°C | 12.1°C | 20.8°C | 9.9°C | 97 mm | 80% | 3.5 m/s | 5 |
| 2007 | 14.5°C | 12.8°C | 11.0°C | 17.7°C | 9.3°C | 45 mm | 82% | 3.4 m/s | 4.9 |
| 2006 | 14.9°C | 13.1°C | 11.2°C | 19.0°C | 8.7°C | 108 mm | 82% | 4 m/s | 5.1 |
| 2005 | 16.1°C | 14.3°C | 12.5°C | 19.6°C | 8.9°C | 129 mm | 85% | 3.1 m/s | 4.8 |
| 2004 ❄️ 🌧️ | 13.3°C | 11.8°C | 10.3°C | 16.8°C | 8.8°C | 167 mm | 82% | 5.1 m/s | 4.6 |
| 2003 | 14.1°C | 12.3°C | 10.5°C | 17.6°C | 7.3°C | 107 mm | 82% | 4 m/s | 5.3 |
| 2002 | 15.2°C | 13.3°C | 11.4°C | 19.5°C | 9.0°C | 123 mm | 80% | 3.8 m/s | 4.9 |
| 2001 | 15.1°C | 13.2°C | 11.3°C | 19.9°C | 8.9°C | 64 mm | 81% | 4.2 m/s | 4.6 |
| 2000 | 15.3°C | 13.5°C | 11.6°C | 19.8°C | 8.6°C | 61 mm | 79% | 4.7 m/s | 5.1 |
| 1999 | 17.3°C | 15.0°C | 12.8°C | 22.5°C | 9.9°C | 51 mm | 80% | 3.2 m/s | 5.6 |
| 1998 | 16.9°C | 14.7°C | 12.5°C | 22.0°C | 8.7°C | 101 mm | 81% | 3.6 m/s | 5 |
| 1997 | 14.4°C | 12.7°C | 11.0°C | 17.3°C | 8.7°C | 140 mm | 83% | 3.6 m/s | 4.7 |
| 1996 | 15.0°C | 13.4°C | 11.7°C | 19.0°C | 8.4°C | 66 mm | 81% | 3.8 m/s | 4.8 |
| 1995 | 15.4°C | 13.4°C | 11.3°C | 20.0°C | 8.2°C | 49 mm | 82% | 3.3 m/s | 5.5 |
| 1994 | 15.8°C | 14.1°C | 12.4°C | 19.9°C | 9.0°C | 123 mm | 84% | 3.3 m/s | 5 |
| 1993 | 14.7°C | 12.9°C | 11.1°C | 19.7°C | 7.8°C | 66 mm | 83% | 3.6 m/s | 4.9 |
| 1992 | 13.8°C | 12.2°C | 10.6°C | 17.2°C | 8.3°C | 143 mm | 79% | 4.8 m/s | 5 |
| 1991 | 14.2°C | 12.6°C | 10.9°C | 19.3°C | 8.7°C | 163 mm | 79% | 4.5 m/s | 4.7 |
| 1990 | 16.3°C | 14.4°C | 12.5°C | 21.4°C | 9.3°C | 70 mm | 80% | 3.4 m/s | 5.1 |
| 1989 | 14.9°C | 13.1°C | 11.2°C | 19.3°C | 9.7°C | 124 mm | 81% | 3.8 m/s | 4.9 |
| 1988 | 14.8°C | 13.1°C | 11.4°C | 19.7°C | 8.4°C | 145 mm | 82% | 4.2 m/s | 4.7 |
| 1987 | 14.9°C | 13.4°C | 11.8°C | 19.6°C | 10.0°C | 146 mm | 80% | 4.3 m/s | 4.5 |
| 1986 | 15.6°C | 14.0°C | 12.4°C | 20.8°C | 8.7°C | 116 mm | 80% | 4 m/s | 5.2 |
| 1985 | 15.5°C | 13.6°C | 11.8°C | 20.0°C | 8.2°C | 79 mm | 81% | 3.5 m/s | 5.2 |
| 1984 | 15.6°C | 13.6°C | 11.6°C | 19.7°C | 8.8°C | 90 mm | 81% | 2.6 m/s | 5 |
| 1983 | 13.8°C | 12.0°C | 10.2°C | 18.0°C | 6.6°C | 71 mm | 81% | 3.6 m/s | — |
| 1982 | 15.4°C | 13.4°C | 11.5°C | 20.1°C | 8.8°C | 93 mm | 82% | 3.9 m/s | — |
| 1981 | 15.0°C | 13.1°C | 11.2°C | 21.7°C | 9.2°C | 77 mm | 81% | 4.6 m/s | — |
Actual recorded February data for each year, 1981–2025 — sourced from NASA POWER.
The average high in February is around 15.2°C with lows near 11.6°C (mean 13.4°C), based on 45 years of NASA POWER data.
February averages 94 mm of rainfall in Halfmoon Bay, about average for rainfall. The wettest on record was 167 mm in 2004.
The hottest February reached 23.8°C in 2023. The coldest dipped to 6.6°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average February temperatures have risen by about 1°C. Daytime highs moved from 15.1°C to 16°C and overnight lows from 11.3°C to 12.2°C over the same span.
February is one of the warmer months of the year in Halfmoon Bay and about average for rainfall, so plan for around 15.2°C daytime highs and 11.6°C at night.
Not quite — February is the 12th coolest month in Halfmoon Bay, averaging 13.4°C.
For February in Halfmoon Bay, pack light layers you can adjust through the day, with typical highs of 15.2°C and lows of 11.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in February averages 81% — quite humid.
Average wind speed in February is 3.8 m/s. The windiest February on record averaged 5.1 m/s (2004).
The wettest February on record was 2004 with 167 mm. On average, February sees 94 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 Halfmoon Bay behaves each February, 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 February specifically, along with year-by-year records and how the month has changed over the decades.
