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Best time to visit · Oregon, United States
On the climate data, the best time to visit Astoria is July – September, scoring up to 94/100 with highs around 68°F (20°C) and 0.7 in (18 mm) of rain in July. June is a good shoulder-season month. The toughest months are December & January, mainly because of rain.
Highs run from 47°F to 68°F across the year, and the yearly total is about 70.2 in (1782 mm) of rain.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 47°F9°C | 48°F9°C | 51°F11°C | 54°F12°C | 60°F15°C | 64°F18°C | 68°F20°C | 68°F20°C | 65°F19°C | 59°F15°C | 52°F11°C | 47°F8°C |
| Avg low | 40°F4°C | 39°F4°C | 41°F5°C | 44°F6°C | 48°F9°C | 52°F11°C | 54°F12°C | 55°F13°C | 53°F12°C | 48°F9°C | 44°F6°C | 40°F4°C |
| Rain | 10.7 in271 mm | 6.6 in168 mm | 8.3 in212 mm | 5.5 in139 mm | 3.3 in83 mm | 2.2 in55 mm | 0.7 in18 mm | 1.1 in28 mm | 2.8 in71 mm | 6.8 in172 mm | 10.9 in276 mm | 11.4 in289 mm |
| Humidity | 91% | 89% | 88% | 86% | 85% | 85% | 86% | 88% | 87% | 88% | 90% | 91% |
| Cloud | 81% | 75% | 80% | 76% | 71% | 68% | 48% | 49% | 53% | 66% | 77% | 79% |
| Comfort | 30 | 42 | 40 | 56 | 73 | 84 | 94 | 94 | 89 | 63 | 38 | 29 |
Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. Temperatures were adjusted from the grid cell's ~165 m (541 ft) to Astoria's ~7 m (23 ft) elevation using the standard lapse rate of 6.5°C per 1,000 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
The cold peaks here: highs of 47–48°F (8–9°C), and nights reach 39°F (4°C). It's the wettest season, with about 28.7 in (728 mm) of rain, 41% of the year's total. It holds the toughest stretch on our comfort score (December & January), averaging 34/100.
Temperatures climb through the season, from 51°F highs in March to 60°F by May. About 17.1 in (434 mm) of rain falls across these months, 24% of the year's total. Lows bottom out around 41°F (5°C). Comfort scores sit mid-table, averaging 56/100.
The warmest stretch of the year, with highs of 64–68°F (18–20°C). It's the driest season, with only about 4.0 in (101 mm) of rain, 6% of the year's total. Lows bottom out around 52°F (11°C). July & August are among the best-scoring months (season average 91/100).
Temperatures slide from 65°F highs in September to 52°F by November. About 20.4 in (519 mm) of rain falls across these months, 29% of the year's total. Lows bottom out around 44°F (6°C). Comfort peaks here: September ranks with the year's best, and the season averages 63/100.
By comfort score: 4 Great, 2 Good, 1 Fair and 5 Tough. Great months: June – September. Tap a month for its own guide.
On the climate data, the best time to visit Astoria is July – September, scoring up to 94/100 with highs around 68°F (20°C) and 0.7 in (18 mm) of rain in July. June is a good shoulder-season month. The toughest months are December & January, mainly because of rain.
December is the wettest month, averaging about 11.4 in (289 mm) of rain. July is the driest, with about 0.7 in (18 mm). The yearly total is around 70.2 in (1782 mm).
February is the coldest, with average lows of 39°F (4°C) and highs of 48°F (9°C). The warmest is August, with average highs of 68°F (20°C).
Not very: summer (June – August) humidity averages 86%, and highs peak around 68°F (20°C), so it rarely feels sticky.
Not on average: even in February, the coldest month, lows average 39°F (4°C). Individual cold snaps can still dip lower.
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