Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Portland (TX) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Portland.
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Climate overview of Portland
The climate in Portland, Texas, United States of America, is marked by large temperature swings across the seasons, ranging from 34°C (93°F) in August to 19°C (66°F) in January.
The city receives around 770 mm (30 in) of rainfall per year. It experiences very warm summers and pleasant winters. September is the wettest month and February the driest. The sunniest month is July, with 11.0 hours of sunshine per day on average.
Portland Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Portland - and find the best time to visit.
Monthly Temperature in Portland
In Portland, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 34°C (93°F) in August to a pleasant 19°C (66°F) in January.
Nighttime temperatures range from 26°C (79°F) in August to 8°C (46°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Portland
On average, Portland receives a reasonable amount of rainfall, with an annual precipitation of 770 mm (30 in). The seasons in Portland bring significant changes in precipitation. The wettest month, September, receives high rainfall, with an average of 143 mm (5.6 in) of precipitation. This rainfall is distributed across 13 rainy days.
In contrast, the driest month, February, experiences much less rainfall, totaling 29 mm (1.1 in) over 7 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Portland Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Portland
In Portland, summer days are longer and more sunny, with daily sunshine hours peaking at 11.0 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.4 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Corpus Christi, the United States of America (11 KM, 6 Miles).
Daily hours of sunshine
Data from: Corpus Christi, the United States of America (11 KM, 6 Miles).
Daily percentage of sunshine
Data from: Corpus Christi, the United States of America (11 KM, 6 Miles).
Humidity in Portland by Month
The relative humidity is high throughout the year in Portland.
The city experiences its highest humidity in May, reaching 79%. In March, the humidity drops to its lowest level at 74%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Corpus Christi, the United States of America (11 KM, 6 Miles).
Best Time to Visit Portland
For comfortable weather, consider visiting Portland in February, March, April, October, November and December. Conditions are usually least favourable in August.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
very good
Feb
excellent
Mar
excellent
Apr
excellent
May
good
Jun
mixed
Jul
mixed
Aug
very hot
Sep
mixed
Oct
excellent
Nov
excellent
Dec
excellent
- Best overall: February, March, April, October, November and December
- Warmest weather: June, July and August
- Most sunshine: July
- Wettest months: September, when rainfall is highest.
- Seasonal pattern: Very warm summers and pleasant winters
Frequently asked questions about the climate in Portland
What is the best time to visit Portland?
February, March, April, October, November and December typically offer the most optimal weather in Portland. In contrast, August tends to have less optimal conditions. Portland has very warm summers and pleasant winters.
What temperatures can I expect in Portland?
Daytime highs range from 19°C (66°F) in January to 34°C (93°F) in August. Nighttime lows range from 8°C (46°F) to 26°C (79°F). Temperatures vary considerably through the year.
How much rain does Portland get?
Annual rainfall is around 770 mm (30 in). September is the wettest month with 143 mm (5.6 in), while February is the driest with 29 mm (1.1 in).
How sunny is Portland?
Portland receives around 2,648 hours of sunshine per year. July is the sunniest month with 330 hours, while December is the cloudiest with just 133 hours. Overall, Portland enjoys abundant sunshine.
Portland 3-Day Forecast
Portland on the map
Portland is highlighted - select any city to see its climate.
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Where to go in October - average daytime high across popular destinations.
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