Lompoc, United States experiences average highs of 19°C (66°F) and lows of 13°C (55°F) throughout the year. The climate is relatively dry, with only 3 rainy days per month on average. Sunshine is abundant, averaging about 11 hours per day. Average highs have stayed broadly stable across the available records.
Lompoc, United States Weather & Climate 2026
Monthly climate averages for Lompoc, 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
8.4/10
Best: August, September, October
UV Index
6
High
Temperature 19°C / 13°C
Feels Like 18°C / 11°C
Rainy Days 3
Rainfall 34 mm
Sunshine 11 h
Humidity 76%
Wind Speed 22 km/h
Dew Point 12°C
Hottest Month
22°C
September
Avg Low16°C
Rain1days
Coldest Month
10°C
February
Avg High16°C
Rain6days
Driest Month
0days
June
Avg High20°C
Avg Low14°C
Windiest Month
25 km/h
April (Gusts 45)
Sea Temperature
13°C – 18°C
Warmest water: September (
18.3°C
)
Worst Time to Visit
Consider avoiding January, February, March, December due to less favorable weather conditions.
Sun Position
Sunrise 05:50
Daylight 14.5h
Sunset 20:18
Live conditions—
Lompoc on the map · live conditions
Lompoc, United States
- Continent
- Americas
- Country
- United States
- City
- Lompoc
- Population
- 44.2K
- Elevation
- 32 m
- Coordinates
- 34.64°, -120.46°
Seasonal Breakdown
Spring
Mar–May
Avg High 17°C
Avg Low 11°C
Rain 4 days/mo
Summer
Jun–Aug
Avg High 21°C
Avg Low 15°C
Rain 0 days/mo
1/3 best months
Autumn
Sep–Nov
Avg High 21°C
Avg Low 15°C
Rain 2 days/mo
2/3 best months
Winter
Dec–Feb
Avg High 16°C
Avg Low 11°C
Rain 6 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: 16°C / 11°C . Feb: 16°C / 10°C . Mar: 16°C / 11°C . Apr: 17°C / 12°C . May: 18°C / 12°C . Jun: 20°C / 14°C . Jul: 21°C / 15°C . Aug: 22°C / 16°C . Sep: 22°C / 16°C . Oct: 21°C / 15°C . Nov: 19°C / 13°C . Dec: 17°C / 11°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 99 mm. Feb: 69 mm. Mar: 84 mm. Apr: 16 mm. May: 6 mm. Jun: 2 mm. Jul: 0 mm. Aug: 1 mm. Sep: 5 mm. Oct: 10 mm. Nov: 38 mm. Dec: 76 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 75%. Feb: 72%. Mar: 76%. Apr: 76%. May: 79%. Jun: 78%. Jul: 80%. Aug: 81%. Sep: 79%. Oct: 72%. Nov: 72%. Dec: 74%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 23 km/h . Feb: 24 km/h . Mar: 25 km/h . Apr: 25 km/h . May: 23 km/h . Jun: 21 km/h . Jul: 19 km/h . Aug: 19 km/h . Sep: 19 km/h . Oct: 20 km/h . Nov: 20 km/h . Dec: 21 km/h .
Sunshine
Sunshine
Sunshine: Jan: 8h. Feb: 9h. Mar: 10h. Apr: 12h. May: 13h. Jun: 13h. Jul: 13h. Aug: 12h. Sep: 11h. Oct: 10h. Nov: 9h. Dec: 8h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 14°C . Feb: 13°C . Mar: 13°C . Apr: 13°C . May: 14°C . Jun: 15°C . Jul: 17°C . Aug: 18°C . Sep: 18°C . Oct: 17°C . Nov: 15°C . Dec: 15°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 4. Feb: UV 5. Mar: UV 6. Apr: UV 7. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 7. Oct: UV 6. Nov: UV 4. Dec: UV 3.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Sep 2025 · 22°C | Sep · 22°C |
| Coldest month | Jan 2025 · 9°C | Feb · 10°C |
| Wettest month | Nov 2025 · 114 mm | Jan · 99 mm |
| Windiest month | Feb 2025 · 26 km/h | Apr · 25 km/h |
Month-by-Month Weather Table
January
Good 
February
Good March
Good April
Good May
Good June
Excellent July
Excellent August best
Excellent September best
Excellent October best
Excellent November
Good December
Good | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 16°C / 11°C | 14°C / 8°C | 7days (99 mm) Good | 8h Good | 75% Muggy | 3.7 Moderate | Good | View Details |
| February | 16°C / 10°C | 14°C / 7°C | 6days (69 mm) Good | 9.1h Good | 72% Muggy | 4.6 Moderate | Good | View Details |
| March | 16°C / 11°C | 14°C / 8°C | 8days (84 mm) Wet | 10h Excellent | 76% Humid | 5.9 High | Good | View Details |
| April | 17°C / 12°C | 16°C / 9°C | 2days (16 mm) Excellent | 11.6h Excellent | 76% Humid | 7.2 Very High | Good | View Details |
| May | 18°C / 12°C | 17°C / 10°C | 1days (6 mm) Excellent | 12.8h Excellent | 79% Humid | 8 Very High | Good | View Details |
| June | 20°C / 14°C | 20°C / 13°C | 0days (2 mm) Excellent | 13.3h Excellent | 78% Humid | 8.1 Very High | Excellent | View Details |
| July | 21°C / 15°C | 22°C / 14°C | 0days (0 mm) Excellent | 13.2h Excellent | 80% Humid | 8.4 Very High | Excellent | View Details |
| August best | 22°C / 16°C | 23°C / 15°C | 0days (1 mm) Excellent | 12.3h Excellent | 81% Humid | 8 Very High | Excellent | View Details |
| September best | 22°C / 16°C | 23°C / 16°C | 1days (5 mm) Excellent | 11.4h Excellent | 79% Humid | 6.9 High | Excellent | View Details |
| October best | 21°C / 15°C | 21°C / 14°C | 1days (10 mm) Excellent | 10.2h Excellent | 72% Muggy | 5.6 High | Excellent | View Details |
| November | 19°C / 13°C | 17°C / 11°C | 4days (38 mm) Good | 8.9h Good | 72% Muggy | 4 Moderate | Good | View Details |
| December | 17°C / 11°C | 15°C / 9°C | 6days (76 mm) Good | 7.8h Good | 74% Muggy | 3.2 Moderate | Good | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Lompoc are August, September, October, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Lompoc, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Lompoc is September, with average daytime highs of 22°C (71°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Lompoc is February, with average overnight lows of 10°C (51°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Lompoc is January, averaging 99mm of precipitation across 7 rainy days. An umbrella or waterproof jacket is essential.
Lompoc receives approximately 129 sunshine hours per year. The sunniest month is June with around 13 hours. Based on climate data for Lompoc.
The least favorable months to visit Lompoc are January, February, March, December, primarily due to less favorable weather conditions. For the best conditions, consider August, September, October instead.
The annual average UV index in Lompoc is 6, classified as high. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Lompoc is 76%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Sea temperatures in Summer average 15°C (59°F), which most swimmers will find too cold without a wetsuit.
Average wind speeds in Lompoc are 22 km/h (14 mph). The windiest month is April with peak winds reaching 25 km/h (16 mph) (gusts up to 45 km/h / 28 mph).
Lompoc averages 10 clear-sky days per month with overall cloud cover around 39%. The clearest skies occur in October.
The annual average dew point in Lompoc is 12°C (54°F), which feels pleasant with low humidity. Outdoor activities are comfortable year-round from a humidity standpoint.
Lompoc 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 Lompoc ranges from 11°C (52°F) to 18°C (64°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Lompoc. It earns a climate score of 8.7/10 with Excellent.
For June in Lompoc, pack Comfortable walking shoes. With average highs of 20°C (67°F) and 0 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.
Last updated: