Forest Grove in May
7.3out of 10
Possible, with caveats
Mild: highs around 20°C. Frequent rain: about 11 rainy days.
20°CAvg high
9°CAvg low
11Rainy days (69 mm)
14:42 hDaylight
05:48Sunrise · 20:30 Sunset
Why this score
- Mild: highs around 20°C
- Frequent rain: about 11 rainy days
- Rain varies a lot between years (±4.4 days)
What to wear and pack
- Layers you can add or remove
- A light jacket for cooler evenings
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in May varies a lot between years (±4.4 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 8°C | 3°C | 172 mm | 17 | – | – | 4.1 |
| February | 10°C | 3°C | 132 mm | 14 | – | – | 5.1 |
| March | 13°C | 4°C | 152 mm | 18 | – | – | 5.0 |
| April | 16°C | 6°C | 116 mm | 16 | – | – | 5.8 |
| May | 20°C | 9°C | 69 mm | 11 | – | – | 7.3 |
| June | 23°C | 11°C | 41 mm | 7 | – | – | 8.1 |
| July | 28°C | 13°C | 11 mm | 2 | – | – | 8.8 |
| August | 28°C | 14°C | 13 mm | 3 | – | – | 8.8 |
| September | 25°C | 12°C | 42 mm | 6 | – | – | 8.4 |
| October | 17°C | 8°C | 106 mm | 12 | – | – | 6.7 |
| November | 11°C | 5°C | 177 mm | 17 | – | – | 4.6 |
| December | 8°C | 2°C | 204 mm | 18 | – | – | 3.8 |
Frequently asked questions
How hot is Forest Grove in May?
Daytime highs average 20°C and nights about 9°C.
When is the best time to visit Forest Grove?
The best months are July, August, September.