Climate and average weather in Monterey
In Monterey, the weather is mild, showery, and clear and remarkably steady, with daytime highs holding near mild levels all year. The wettest stretch peaks around February.
Over the course of the year, the temperature in Monterey typically varies from 51°F to 60°F, and is rarely below 47°F or above 66°F. September is the hottest month of the year, while April is the coldest.
Based on the travel score, the best time of year to visit Monterey for warm-weather activities is from early July to early November.
- Hottest
- Sep
- 60°
- Coldest
- Apr
- 51°
- Wettest
- Feb
- 4.5 in
- Driest
- Jul
- 0.0 in
- Rain / yr
- 21.8 in
- 59 wet days
- Daylight
- 9.5–14.5 h
- shortest–longest
- Elevation
- 26 ft
- 36.6°N
- Clearest
- Sep
- 28% cloud
Monterey is city in Monterey County, California, United States.
- Density
- 893/km²
- people per km²
- Founded
- 1770
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Monterey weather by month, at a glance
The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.
Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early July to early November.
Temperature through the year
Daily average highs and lows in Monterey, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
Temperatures in Monterey stay fairly even through the year, without a distinct hot or cool season. The warmest month is September, with an average high of 60°F and low of 57°F; the coolest is April, with an average low of 51°F and high of 54°F.
Days typically run about 3°F warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 55 | 54 | 54 | 54 | 54 | 55 | 57 | 59 | 60 | 60 | 57 | 55 |
| Avg low (°F) | 51 | 51 | 51 | 51 | 52 | 53 | 55 | 56 | 57 | 56 | 54 | 52 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| Jan | 55 | 51 |
| Feb | 54 | 51 |
| Mar | 54 | 51 |
| Apr | 54 | 51 |
| May | 54 | 52 |
| Jun | 55 | 53 |
| Jul | 57 | 55 |
| Aug | 59 | 56 |
| Sep | 60 | 57 |
| Oct | 60 | 56 |
| Nov | 57 | 54 |
| Dec | 55 | 52 |
Average hourly temperature in Monterey
A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on September afternoons, near 60°F, and coldest before dawn in April, near 51°F.
Monterey weather by month
Every month at a glance. Click a month for its detailed page.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 55° / 51° | 4.5 | 10 | 9.8 | 3.6 |
| Feb | 54° / 51° | 4.5 | 9.9 | 10.6 | 3.3 |
| Mar | 54° / 51° | 3.3 | 9.2 | 11.7 | 3.4 |
| Apr | 54° / 51° | 1.5 | 5.8 | 12.9 | 3.6 |
| May | 54° / 52° | 0.6 | 3.3 | 13.9 | 4.0 |
| Jun | 55° / 53° | 0.2 | 1.3 | 14.5 | 4.6 |
| Jul | 57° / 55° | 0.0 | 0.1 | 14.2 | 5.2 |
| Aug | 59° / 56° | 0.1 | 0.3 | 13.4 | 5.8 |
| Sep | 60° / 57° | 0.1 | 0.7 | 12.2 | 6.2 |
| Oct | 60° / 56° | 0.9 | 2.7 | 11.1 | 6.0 |
| Nov | 57° / 54° | 2.1 | 5.8 | 10 | 4.7 |
| Dec | 55° / 52° | 4.0 | 9.6 | 9.5 | 3.7 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Monterey gets about 21.8 in of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.
The wetter season lasts 5.6 months, from around Nov 5 to Apr 24, peaking in February at about 37% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 17.
February is the wettest month by volume, with 4.5 in over about 10 wet days; July is the driest, with 0.0 in.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 32 | 35 | 29 | 20 | 10 | 4 | 0 | 1 | 3 | 9 | 20 | 31 |
| Rain days | 10 | 10 | 9 | 6 | 3 | 1 | 0 | 0 | 1 | 3 | 6 | 10 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 32 | 10 |
| Feb | 35 | 10 |
| Mar | 29 | 9 |
| Apr | 20 | 6 |
| May | 10 | 3 |
| Jun | 4 | 1 |
| Jul | 0 | 0 |
| Aug | 1 | 0 |
| Sep | 3 | 1 |
| Oct | 9 | 3 |
| Nov | 20 | 6 |
| Dec | 31 | 10 |
Monthly rainfall
Over a full year, Monterey collects about 21.8 in of rain across 59 wet days — roughly 1.8 in in an average month.
It doesn’t fall evenly. February is the wettest month with 4.5 in, while July is the driest at just 0.0 in. The three wettest months alone bring about 60% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (in) | 4.5 | 4.5 | 3.3 | 1.5 | 0.6 | 0.2 | 0.0 | 0.1 | 0.1 | 0.9 | 2.1 | 4.0 |
| Rain days | 10 | 10 | 9 | 6 | 3 | 1 | 0 | 0 | 1 | 3 | 6 | 10 |
| Rainfall (in) | Rain days | |
|---|---|---|
| Jan | 4.5 | 10 |
| Feb | 4.5 | 10 |
| Mar | 3.3 | 9 |
| Apr | 1.5 | 6 |
| May | 0.6 | 3 |
| Jun | 0.2 | 1 |
| Jul | 0.0 | 0 |
| Aug | 0.1 | 0 |
| Sep | 0.1 | 1 |
| Oct | 0.9 | 3 |
| Nov | 2.1 | 6 |
| Dec | 4.0 | 10 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Monterey, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.
The clearer part of the year begins around April 25 and lasts for 6.5 months, ending around November 9. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 86% of the time on average.
The cloudier part of the year begins around November 10 and lasts for 5.5 months, ending around April 24. The cloudiest month is January, when it is overcast or mostly cloudy 49% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 51 | 53 | 55 | 65 | 69 | 74 | 77 | 80 | 86 | 79 | 65 | 54 |
| Cloudier (%) | 49 | 47 | 45 | 35 | 31 | 26 | 23 | 20 | 14 | 21 | 35 | 46 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 51 | 49 |
| Feb | 53 | 47 |
| Mar | 55 | 45 |
| Apr | 65 | 35 |
| May | 69 | 31 |
| Jun | 74 | 26 |
| Jul | 77 | 23 |
| Aug | 80 | 20 |
| Sep | 86 | 14 |
| Oct | 79 | 21 |
| Nov | 65 | 35 |
| Dec | 54 | 46 |
Daylight, sunrise and sunset
Hours of daylight through the year, with sunrise and sunset times.
The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 12, brings about 14 h 30 min of light; the shortest, around January 1, only 9 h 30 min — a swing of roughly 5 hours.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.8 | 10.6 | 11.7 | 12.9 | 13.9 | 14.5 | 14.2 | 13.4 | 12.2 | 11.1 | 10.0 | 9.5 |
| Sunrise (AM) | 7:24 | 7:04 | 6:26 | 5:40 | 5:06 | 4:53 | 5:05 | 5:29 | 5:55 | 6:21 | 6:52 | 7:18 |
| Sunset (PM) | 5:10 | 5:40 | 6:09 | 6:36 | 7:02 | 7:22 | 7:21 | 6:54 | 6:09 | 5:24 | 4:53 | 4:49 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 9.8 | 7:24 | 5:10 |
| Feb | 10.6 | 7:04 | 5:40 |
| Mar | 11.7 | 6:26 | 6:09 |
| Apr | 12.9 | 5:40 | 6:36 |
| May | 13.9 | 5:06 | 7:02 |
| Jun | 14.5 | 4:53 | 7:22 |
| Jul | 14.2 | 5:05 | 7:21 |
| Aug | 13.4 | 5:29 | 6:54 |
| Sep | 12.2 | 5:55 | 6:09 |
| Oct | 11.1 | 6:21 | 5:24 |
| Nov | 10.0 | 6:52 | 4:53 |
| Dec | 9.5 | 7:18 | 4:49 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Monterey averages about 15 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 11 and 22 days.
The sunnier stretch runs 3.7 months, from around Jul 24 to Nov 14. The sunniest month is September, with roughly 22 sunny days (bright).
The greyest month is January, down near 11 sunny days — about 48% fewer than the September peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 11 | 10 | 12 | 15 | 16 | 17 | 16 | 19 | 21 | 20 | 15 | 12 |
| Sky | Mixed | Mixed | Mixed | Mixed | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Mixed |
| Sunny days | Sky | |
|---|---|---|
| Jan | 11 | Mixed |
| Feb | 10 | Mixed |
| Mar | 12 | Mixed |
| Apr | 15 | Mixed |
| May | 16 | Bright |
| Jun | 17 | Bright |
| Jul | 16 | Bright |
| Aug | 19 | Bright |
| Sep | 21 | Bright |
| Oct | 20 | Bright |
| Nov | 15 | Bright |
| Dec | 12 | Mixed |
Humidity comfort
Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.
Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.
In Monterey, the air stays dry or comfortable essentially all year. Even in August, the muggiest month, it feels humid or worse only about 1% of the time — humidity is not something you need to plan around here.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 99 | 100 | 100 | 100 | 99 | 96 | 78 | 54 | 54 | 73 | 92 | 97 |
| Comfortable (%) | 1 | 0 | 0 | 0 | 1 | 4 | 22 | 45 | 45 | 27 | 8 | 3 |
| Humid (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | |
|---|---|---|---|
| Jan | 99 | 1 | 0 |
| Feb | 100 | 0 | 0 |
| Mar | 100 | 0 | 0 |
| Apr | 100 | 0 | 0 |
| May | 99 | 1 | 0 |
| Jun | 96 | 4 | 0 |
| Jul | 78 | 22 | 0 |
| Aug | 54 | 45 | 1 |
| Sep | 54 | 45 | 1 |
| Oct | 73 | 27 | 0 |
| Nov | 92 | 8 | 0 |
| Dec | 97 | 3 | 0 |
Wind
Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.
This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.
Across the year, average wind speed in Monterey is typically light breeze, near 9 mph, and varies moderately with the seasons.
The windier part of the year lasts 6.8 months, from around Nov 20 to Jun 14. The windiest month is April, averaging about 11 mph (light breeze).
The calmer part of the year runs from around Jun 15 to Nov 19, with September the calmest month at about 7 mph.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 10 | 11 | 10 | 11 | 10 | 9 | 8 | 8 | 7 | 8 | 9 | 10 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | calm | light breeze | light breeze | light breeze |
| Wind speed (mph) | Feels | |
|---|---|---|
| Jan | 10 | light breeze |
| Feb | 11 | light breeze |
| Mar | 10 | light breeze |
| Apr | 11 | light breeze |
| May | 10 | light breeze |
| Jun | 9 | light breeze |
| Jul | 8 | light breeze |
| Aug | 8 | light breeze |
| Sep | 7 | calm |
| Oct | 8 | light breeze |
| Nov | 9 | light breeze |
| Dec | 10 | light breeze |
Hazard calendar for Monterey
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Monterey's rainy season runs November–March, when most of the year's rain falls.
Best time to visit Monterey
To characterize how pleasant the weather is in Monterey throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around mid July, Monterey is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.
Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.
The travel score favors clear, rainless days with daytime highs between 64°F and 82°F. Based on this score, the best time of year to visit Monterey for general outdoor tourist activities is from early July to early November, with a peak score in the last week of September.
The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Travel score (0–10) | 3.6 | 3.3 | 3.4 | 3.6 | 4.0 | 4.6 | 5.2 | 5.8 | 6.2 | 6.0 | 4.7 | 3.7 |
| Rating | fair | poor | poor | fair | fair | fair | fair | good | good | good | fair | fair |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 3.6 | fair |
| Feb | 3.3 | poor |
| Mar | 3.4 | poor |
| Apr | 3.6 | fair |
| May | 4.0 | fair |
| Jun | 4.6 | fair |
| Jul | 5.2 | fair |
| Aug | 5.8 | good |
| Sep | 6.2 | good |
| Oct | 6.0 | good |
| Nov | 4.7 | fair |
| Dec | 3.7 | fair |
The beach/pool score favors clear, rainless days with daytime highs between 75°F and 93°F. Monterey rarely gets warm enough to lift this score — no time of year really suits hot-weather activities here.
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
What to pack for Monterey, by month
Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.
Monterey packs about the same all year — highs hold near 60°F. Across the year the things worth having are a warm layer and sun protection.
In September, Monterey sees daytime highs around 60°F and nights near 57°F. Worth packing: a warm layer and sun protection.
Sea temperature near Monterey
Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.
The sea offshore is warmest in September at about 58°F and coldest in April near 54°F.
The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 55 | 55 | 55 | 54 | 54 | 55 | 57 | 58 | 58 | 58 | 57 | 55 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 55 | Bracing |
| Feb | 55 | Bracing |
| Mar | 55 | Bracing |
| Apr | 54 | Bracing |
| May | 54 | Bracing |
| Jun | 55 | Bracing |
| Jul | 57 | Bracing |
| Aug | 58 | Bracing |
| Sep | 58 | Bracing |
| Oct | 58 | Bracing |
| Nov | 57 | Bracing |
| Dec | 55 | Bracing |
UV index (midday) in Monterey by month
Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.
Under clear skies, the midday UV index in Monterey peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 4 | 5 | 7 | 8 | 10 | 10 | 10 | 6 | 5 | 2 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme | Very high | High | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 10 | Extreme |
| Jul | 10 | Extreme |
| Aug | 10 | Very high |
| Sep | 6 | High |
| Oct | 5 | High |
| Nov | 2 | Moderate |
| Dec | 2 | Moderate |
Average hourly UV index in Monterey
Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.
The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
UV falls off far faster than brightness as the sun drops, so even in June the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 6 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV ≥ 3 (h/day) | 0 | 3.5 | 5 | 6.5 | 8 | 8.5 | 8.5 | 8 | 6.5 | 5 | 0 | 0 |
| UV ≥ 6 (h/day) | 0 | 0 | 0 | 2.5 | 4.5 | 6 | 6 | 5.5 | 2.5 | 0 | 0 | 0 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 0 | 0 |
| Feb | 3.5 | 0 |
| Mar | 5 | 0 |
| Apr | 6.5 | 2.5 |
| May | 8 | 4.5 |
| Jun | 8.5 | 6 |
| Jul | 8.5 | 6 |
| Aug | 8 | 5.5 |
| Sep | 6.5 | 2.5 |
| Oct | 5 | 0 |
| Nov | 0 | 0 |
| Dec | 0 | 0 |
Air quality in Monterey by month
Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.
Air quality in Monterey is worst in August — around 17 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (June, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 7 | 9 | 8 | 7 | 7 | 6 | 6 | 17 | 11 | 10 | 9 | 6 |
| Level | Good | Good | Good | Good | Good | Good | Good | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 9 | Good |
| Mar | 8 | Good |
| Apr | 7 | Good |
| May | 7 | Good |
| Jun | 6 | Good |
| Jul | 6 | Good |
| Aug | 17 | Moderate |
| Sep | 11 | Good |
| Oct | 10 | Good |
| Nov | 9 | Good |
| Dec | 6 | Good |
Growing season
Monterey is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Frost nights | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 100 | 0 |
| Feb | 100 | 0 |
| Mar | 100 | 0 |
| Apr | 100 | 0 |
| May | 100 | 0 |
| Jun | 100 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 100 | 0 |
| Oct | 100 | 0 |
| Nov | 100 | 0 |
| Dec | 100 | 0 |
Growing degree days
Growing degree days tally heat above 50°F: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Monterey banks about 1,726 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around September.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°F·days) | 96 | 72 | 72 | 67 | 92 | 130 | 187 | 232 | 253 | 249 | 169 | 107 |
| Growing degree days (°F·days) | |
|---|---|
| Jan | 96 |
| Feb | 72 |
| Mar | 72 |
| Apr | 67 |
| May | 92 |
| Jun | 130 |
| Jul | 187 |
| Aug | 232 |
| Sep | 253 |
| Oct | 249 |
| Nov | 169 |
| Dec | 107 |
Solar energy
Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.
Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.
Monterey receives about 5.3 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.4 and 7.8 kWh/m².
The brighter stretch of the year lasts 6.3 months, from around Mar 23 to Sep 29. The brightest month is June, averaging about 7.7 kWh/m² (intense).
The dimmest month is December, down near 2.5 kWh/m² — roughly 68% less than the June peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.7 | 3.6 | 5.0 | 6.4 | 7.2 | 7.8 | 7.6 | 6.9 | 5.9 | 4.4 | 3.1 | 2.5 |
| Level | Moderate | Moderate | Bright | Intense | Intense | Intense | Intense | Intense | Bright | Bright | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 2.7 | Moderate |
| Feb | 3.6 | Moderate |
| Mar | 5.0 | Bright |
| Apr | 6.4 | Intense |
| May | 7.2 | Intense |
| Jun | 7.8 | Intense |
| Jul | 7.6 | Intense |
| Aug | 6.9 | Intense |
| Sep | 5.9 | Bright |
| Oct | 4.4 | Bright |
| Nov | 3.1 | Moderate |
| Dec | 2.5 | Moderate |
Where is Monterey?
Monterey sits at 36.6°N, 121.9°W, 26 ft above sea level, in United States. The nearest listed city is Pacific Grove, 1.9 mi away.
What Monterey looks like
Topography around Monterey
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Monterey.
Within 2 miles, the terrain around Monterey has significant variations in elevation — a maximum elevation change of 843 ft around an average of 197 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,805 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 5,883 ft.
The land around Monterey is covered by trees (37%), artificial surfaces (31%) and water (27%) within 2 miles, water (51%) and trees (28%) within 10 miles, and water (35%), trees (29%) and grassland (25%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Monterey (36.6002°, -121.8947°, elevation 26 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).