Climate averages 1991–2020
Tacoma weather
in August.
A warm, fairly dry month: the warmest and the 2nd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Tacoma: daytime highs average 24.3°C and nights cool to about 14.2°C. By daytime temperature it is the warmest month of the year.
Expect about 23 mm of rain on roughly 4 days, which makes August a fairly dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 15 min on an average August day.
The nearest other city in this atlas is Federal Way (13 km away). In August its highs average 23.7°C, 0.6°C cooler than Tacoma, with 28 mm of rain.
Among the 498 cities listed in the United States, Tacoma ranks joint 484th of 498 for the warmest August highs and joint 139th of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; Tacoma is 5.6°C cooler than that mean.
From August to September, average highs fall by 3.5°C to 20.8°C, and monthly rainfall rises from 23 mm to 50 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Tacoma climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.3°C1.7°C | 1.7°C | 165 | 17.1 | 8.99 h |
| February | 8.5°C1.6°C | 1.6°C | 115 | 13.5 | 10.210 h |
| March | 10.7°C2.9°C | 2.9°C | 132 | 16.5 | 11.912 h |
| April | 13.4°C4.9°C | 4.9°C | 99 | 13.5 | 13.614 h |
| May | 17.2°C8.4°C | 8.4°C | 61 | 10.1 | 15.115 h |
| June | 19.8°C11.1°C | 11.1°C | 40 | 7.0 | 15.916 h |
| July | 24.0°C13.8°C | 13.8°C | 16 | 2.9 | 15.516 h |
| August, selected | 24.3°C14.2°C | 14.2°C | 23 | 4.0 | 14.214 h |
| September | 20.8°C11.9°C | 11.9°C | 50 | 7.1 | 12.613 h |
| October | 14.7°C7.9°C | 7.9°C | 112 | 12.6 | 10.911 h |
| November | 9.7°C4.2°C | 4.2°C | 184 | 17.0 | 9.49 h |
| December | 6.7°C1.8°C | 1.8°C | 174 | 16.7 | 8.69 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Federal Way in AugustUnited States · 13 kmHigh 23.7°C · Low 13.6°C · 28 mm rain
- Auburn in AugustUnited States · 17 kmHigh 24.1°C · Low 13.9°C · 28 mm rain
- Kent in AugustUnited States · 21 kmHigh 24.6°C · Low 14.4°C · 33 mm rain
- Renton in AugustUnited States · 31 kmHigh 24.5°C · Low 14.3°C · 33 mm rain
- Seattle in AugustUnited States · 40 kmHigh 24.0°C · Low 13.9°C · 33 mm rain
- Bellevue in AugustUnited States · 44 kmHigh 24.1°C · Low 13.9°C · 33 mm rain
- Kirkland in AugustUnited States · 51 kmHigh 23.4°C · Low 13.5°C · 38 mm rain
- Everett in AugustUnited States · 83 kmHigh 23.1°C · Low 13.6°C · 43 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Tacoma) is explained once on the Tacoma year overview and on the Sources, method and limits page.