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Port Orchard climate
Typical historical weather for Port Orchard, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.
Data last updated: 31 December 2025
Want today's actual conditions instead? See the current forecast for Port Orchard. Planning a garden? See the gardening & growing season planner. Or browse the 365-day climate calendar.
Annual average
11.9°C
across all months
Warmest month
23.8°C
Aug average high
Coolest month
3.7°C
Feb average low
Annual rainfall
1348mm
total per year
Port Orchard is typically hottest in August and coolest in February, a swing of about 20.1°C across the year. About 43% of annual rainfall falls in the three wettest months (December is typically wettest, July driest).
Monthly averages
Average daily high/low temperature (band) and monthly rainfall (bars).
| Month | Avg high | Avg low | Rainfall | Wet days | Humidity | Wind | Cloud | Solar |
|---|---|---|---|---|---|---|---|---|
| Jan | 7.9°C · record 10.3°C–13.7°C | 4.3°C · record -7.4°C–3.1°C | 194mm | 19 | 88% | 2.3 m/s | 82% | 1.1 kWh/m² |
| Feb | 7.9°C · record 9.8°C–14.3°C | 3.7°C · record -2.8°C–3.6°C | 135mm | 19 | 84% | 2.4 m/s | 78% | 1.7 kWh/m² |
| Mar | 10.4°C · record 12.6°C–21°C | 5.1°C · record -0.5°C–4°C | 124mm | 18 | 79% | 2.3 m/s | 73% | 3.1 kWh/m² |
| Apr | 13.4°C · record 15.7°C–29.5°C | 7.2°C · record 0.9°C–5.9°C | 101mm | 15 | 73% | 2.2 m/s | 68% | 4.5 kWh/m² |
| May | 17.3°C · record 18.8°C–29.6°C | 10.5°C · record 5.6°C–8.8°C | 73mm | 13 | 73% | 1.8 m/s | 65% | 5.5 kWh/m² |
| Jun | 20°C · record 25°C–36.8°C | 13.1°C · record 7.5°C–10.4°C | 57mm | 10 | 72% | 1.9 m/s | 60% | 6 kWh/m² |
| Jul | 23.5°C · record 26.9°C–31.4°C | 15.9°C · record 12.2°C–14°C | 23mm | 6 | 70% | 1.6 m/s | 42% | 6.4 kWh/m² |
| Aug | 23.8°C · record 28.1°C–32.1°C | 16.2°C · record 11.1°C–14.7°C | 29mm | 7 | 72% | 1.7 m/s | 45% | 5.6 kWh/m² |
| Sep | 20.3°C · record 23.1°C–30.4°C | 14°C · record 8.2°C–11.9°C | 72mm | 11 | 77% | 2 m/s | 56% | 3.9 kWh/m² |
| Oct | 14.9°C · record 16.1°C–24.2°C | 9.9°C · record 2.8°C–7.3°C | 148mm | 17 | 82% | 2.3 m/s | 66% | 2.3 kWh/m² |
| Nov | 10.5°C · record 13.5°C–17.8°C | 6.9°C · record 0.7°C–4.7°C | 191mm | 20 | 86% | 2.6 m/s | 80% | 1.2 kWh/m² |
| Dec | 7.8°C · record 10.1°C–15.1°C | 4.6°C · record -4.4°C–3°C | 200mm | 21 | 89% | 2.5 m/s | 82% | 0.8 kWh/m² |
"Avg high"/"Avg low" is the mean daily high/low for that month, averaged across every year on file. The "record" figure alongside it is a different statistic — the single hottest (or coldest) hour ever recorded during that month across all years — so it can sit above or below the average and does not describe the average's year-to-year spread. A "wet day" is any day with at least 1.0mm of rain.
Year to year
Annual average temperature, 2016–2025.
Across these 10 years, the annual average has moved by about +0.1°C per decade. That’s a short window for a reliable long-term climate trend — treat it as indicative, not definitive.
Annual rainfall has moved by about -228.39mm per decade over the same period.
2025 (the most recent year on file) averaged 12.2°C, above the 9-year baseline of 11.9°C by 1.13 standard deviations.
Typical extremes per year
Rainy days
173.5 days
≥1.0mm rain
Heavy rain days
11.2 days
≥20mm rain
Extreme heat days
0 days
daily high ≥40°C
Frost days
5.9 days
daily low ≤0°C
Averaged across 10 years on file. Thresholds match PastClimate's data pipeline definitions — see data & sources.
Records on file
Ranked across 10 years of data currently on file (2016–2025).
Hottest day
36.8°C
26 June 2021
2021 was 0.62 SD below the 9-year average that year
Coldest day
-7.3°C
13 January 2024
2024 was 0.17 SD above the 9-year average that year
Wettest day
56.3mm
13 October 2016
2016 was 2.05 SD above the 9-year average that year
Windiest day
7.2m/s
14 October 2016
2016 was 2.05 SD above the 9-year average that year
See the detail: Port Orchard on 13 October 2016.
Nearby cities
Frequently asked questions about Port Orchard's climate
What is the hottest month in Port Orchard?
August is typically the warmest month in Port Orchard, with an average high of 23.8°C. February is typically the coolest, averaging 3.7°C overnight.
How much does it rain in Port Orchard?
Port Orchard gets about 1348mm of rain a year on average, with roughly 43% of it falling in the three wettest months (December is typically the wettest, July the driest).
How many extremely hot or cold days does Port Orchard have?
On average, Port Orchard sees about 0 day(s) a year at or above 40°C and about 5.9 day(s) at or below 0°C, based on 10 years of data.
Is Port Orchard getting warmer?
Across the 10 years on file (2016–2025), the annual average temperature has moved by about +0.05°C per decade. That's a short window for a reliable long-term climate trend — treat it as indicative, not definitive.
What is the hottest day on record for Port Orchard?
The hottest day on file is 26 June 2021 at 36.8°C, out of 10 year(s) searched.
Data & provenance
↓ Download monthly CSVData source & coverage — ERA5 reanalysis, 2016–2025 (10 years)details
- Source
- ERA5 reanalysis, accessed via the Copernicus Climate Change Service (C3S) Climate Data Store
- Data type
- Reanalysis — a physically consistent reconstruction combining a forecast model with historical observations, not a live station reading or a forecast
- Coverage
- 2016–2025 (10 years) for United States
- Location
- Port Orchard — 47.500°, -122.750°, ERA5 grid cell center, 9.7 km from requested point
- Time zone
- America/Los_Angeles
- What's shown here
- Monthly and annual averages, and dated extreme-value records, derived from an hourly base record.
- Spatial resolution
- 0.25° (~25 km) distributed grid — ERA5's native model resolution is finer; this is the publicly distributed regridded product
- Version / refreshed
- Methodology v2026.07 · data last refreshed December 31, 2025
- Limitations
- A model reconstruction, not a station observation — hyper-local extremes (a single storm cell, an urban heat pocket) can differ from a nearby gauge. See the full methodology.
- Attribution
- Generated using Copernicus Climate Change Service information
Cite this data
PastClimate (2026-07-20). Historical climate data for Port Orchard, United States (47.50°N, 122.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Port Orchard, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Port Orchard, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 20, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Port Orchard, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-20},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.