Agate Beach, United States experiences average highs of 14°C (57°F) and lows of 9°C (48°F) throughout the year. Rainfall is frequent, averaging about 13 rainy days per month. Average highs have stayed broadly stable across the available records.
Agate Beach, United States Weather & Climate 2026
Monthly climate averages for Agate Beach, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: May–Oct 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5/10
Best: June, July, August, September
UV Index
4
Low
Temperature 14°C / 9°C
Feels Like 11°C / 6°C
Rainy Days 13
Rainfall 155 mm
Sunshine 8 h
Humidity 82%
Wind Speed 26 km/h
Dew Point 8°C
Snow Days 2 days
Frost Days 1 days
Hottest Month
19°C
August
Avg Low13°C
Rain3days
Coldest Month
6°C
February
Avg High9°C
Rain19days
Driest Month
2days
July
Avg High18°C
Avg Low12°C
Windiest Month
31 km/h
January (Gusts 51)
Sea Temperature
10°C – 14°C
Warmest water: September (
13.8°C
)
Worst Time to Visit
Consider avoiding January, February, March, December due to heavy rainfall.
Sun Position
Sunrise 05:32
Daylight 15.6h
Sunset 21:05
Live conditions—
Agate Beach on the map · live conditions
Agate Beach, United States
- Continent
- Americas
- Country
- United States
- City
- Agate Beach
- Population
- 12.4K
- Elevation
- 48 m
- Coordinates
- 44.68°, -124.06°
Seasonal Breakdown
Spring
Mar–May
Avg High 12°C
Avg Low 8°C
Rain 15 days/mo
Summer
Jun–Aug
Avg High 18°C
Avg Low 12°C
Rain 4 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 15°C
Avg Low 10°C
Rain 13 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 10°C
Avg Low 6°C
Rain 20 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 10°C / 6°C . Feb: 9°C / 6°C . Mar: 10°C / 6°C . Apr: 12°C / 8°C . May: 14°C / 10°C . Jun: 16°C / 11°C . Jul: 18°C / 12°C . Aug: 19°C / 13°C . Sep: 18°C / 13°C . Oct: 15°C / 11°C . Nov: 12°C / 8°C . Dec: 10°C / 7°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 308 mm. Feb: 221 mm. Mar: 223 mm. Apr: 152 mm. May: 72 mm. Jun: 52 mm. Jul: 8 mm. Aug: 12 mm. Sep: 55 mm. Oct: 175 mm. Nov: 278 mm. Dec: 309 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 82%. Feb: 81%. Mar: 82%. Apr: 80%. May: 81%. Jun: 82%. Jul: 82%. Aug: 82%. Sep: 82%. Oct: 82%. Nov: 83%. Dec: 83%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 31 km/h . Feb: 28 km/h . Mar: 28 km/h . Apr: 26 km/h . May: 24 km/h . Jun: 24 km/h . Jul: 24 km/h . Aug: 21 km/h . Sep: 21 km/h . Oct: 24 km/h . Nov: 28 km/h . Dec: 29 km/h .
Sunshine
Sunshine
Sunshine: Jan: 4h. Feb: 6h. Mar: 8h. Apr: 9h. May: 11h. Jun: 12h. Jul: 13h. Aug: 12h. Sep: 10h. Oct: 7h. Nov: 5h. Dec: 4h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 10°C . Feb: 10°C . Mar: 10°C . Apr: 11°C . May: 12°C . Jun: 11°C . Jul: 11°C . Aug: 13°C . Sep: 14°C . Oct: 13°C . Nov: 12°C . Dec: 11°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 2. Mar: UV 4. Apr: UV 5. May: UV 6. Jun: UV 7. Jul: UV 8. Aug: UV 7. Sep: UV 5. Oct: UV 4. Nov: UV 2. Dec: UV 1.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 2 days. Feb: 4 days. Mar: 3 days. Apr: 1 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 0 days. Dec: 2 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 47 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 19°C | Aug · 19°C |
| Coldest month | Feb 2025 · 5°C | Feb · 6°C |
| Wettest month | Dec 2025 · 379 mm | Dec · 309 mm |
| Windiest month | Dec 2025 · 31 km/h | Jan · 31 km/h |
Month-by-Month Weather Table
January
Wet 
February
Wet March
Wet April
Fair May
Fair June best
Good July best
Excellent August best
Excellent September best
Good October
Good November
Wet December
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 10°C / 6°C | 6°C / 1°C | 20days (308 mm) Wet | 4.4h Fair | 82% Humid | 1.6 Low | Wet | View Details |
| February | 9°C / 6°C | 6°C / 1°C | 19days (221 mm) Wet | 5.9h Fair | 81% Humid | 2.4 Moderate | Wet | View Details |
| March | 10°C / 6°C | 7°C / 2°C | 20days (223 mm) Wet | 7.6h Good | 82% Humid | 3.8 Moderate | Wet | View Details |
| April | 12°C / 8°C | 9°C / 4°C | 15days (152 mm) Wet | 9.1h Good | 80% Humid | 5.4 High | Fair | View Details |
| May | 14°C / 10°C | 12°C / 7°C | 10days (72 mm) Wet | 10.9h Excellent | 81% Humid | 6.4 High | Fair | View Details |
| June best | 16°C / 11°C | 15°C / 9°C | 7days (52 mm) Good | 12.1h Excellent | 82% Humid | 7.2 Very High | Good | View Details |
| July best | 18°C / 12°C | 17°C / 11°C | 2days (8 mm) Excellent | 13h Excellent | 82% Humid | 7.5 Very High | Excellent | View Details |
| August best | 19°C / 13°C | 18°C / 12°C | 3days (12 mm) Excellent | 11.8h Excellent | 82% Humid | 6.5 High | Excellent | View Details |
| September best | 18°C / 13°C | 17°C / 11°C | 7days (55 mm) Good | 10h Excellent | 82% Humid | 5.2 High | Good | View Details |
| October | 15°C / 11°C | 13°C / 8°C | 14days (175 mm) Wet | 7.4h Good | 82% Humid | 3.5 Moderate | Good | View Details |
| November | 12°C / 8°C | 9°C / 4°C | 18days (278 mm) Wet | 5.2h Fair | 83% Humid | 2 Low | Wet | View Details |
| December | 10°C / 7°C | 6°C / 2°C | 21days (309 mm) Wet | 4.1h Fair | 83% Humid | 1.4 Low | Wet | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Agate Beach are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Agate Beach, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Agate Beach is August, with average daytime highs of 19°C (66°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Agate Beach is February, with average overnight lows of 6°C (42°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Agate Beach is December, averaging 309mm of precipitation across 21 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Agate Beach runs through December, January, March, February, with the heaviest rainfall in December. Based on 10-year averages for Agate Beach.
Agate Beach receives approximately 102 sunshine hours per year. The sunniest month is July with around 13 hours. Based on climate data for Agate Beach.
The least favorable months to visit Agate Beach are January, February, March, December, primarily due to heavy rainfall. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Agate Beach is 4, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Agate Beach is 82%, classified as humid. High humidity makes warm temperatures feel significantly hotter — lightweight, breathable clothing is recommended.
Sea temperatures in Summer average 11°C (52°F), which most swimmers will find too cold without a wetsuit.
Yes, Agate Beach receives snow. Months with snowfall average 2 snow days and 2 cm (1 in) of accumulation, with about 1 frost days during winter.
Average wind speeds in Agate Beach are 26 km/h (16 mph). The windiest month is January with peak winds reaching 31 km/h (19 mph) (gusts up to 51 km/h / 32 mph).
Agate Beach averages 3 clear-sky days per month with overall cloud cover around 65%. The clearest skies occur in September.
The annual average dew point in Agate Beach is 8°C (46°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Agate Beach has a Warm-Summer Mediterranean climate, classified as Csb under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Agate Beach ranges from 6°C (43°F) to 11°C (52°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
Yes, June is a great time to visit Agate Beach. It earns a climate score of 7.3/10 with Good.
For June in Agate Beach, pack Layered clothing, Light jacket, Umbrella, Comfortable walking shoes. With average highs of 16°C (61°F) and 7 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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