Climate and average weather in Constanza
In Constanza, the weather is warm, wet, and partly cloudy and remarkably steady, with daytime highs holding near warm levels all year. The wettest stretch peaks around May.
Over the course of the year, the temperature in Constanza typically varies from 13°C to 24°C, and is rarely below 11°C or above 26°C. August is the hottest month of the year, while January is the coldest.
Based on the travel score, the best time of year to visit Constanza for warm-weather activities is from late October to mid April.
- Hottest
- Aug
- 24°
- Coldest
- Jan
- 13°
- Wettest
- May
- 282 mm
- Driest
- Feb
- 55 mm
- Rain / yr
- 1638 mm
- 225 wet days
- Daylight
- 10.9–13.1 h
- shortest–longest
- Elevation
- 1,177 m
- 18.9°N
- Clearest
- Feb
- 48% cloud
Constanza is settlement in the Dominican Republic.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Constanza 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 late October to mid April.
Temperature through the year
Daily average highs and lows in Constanza, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
Temperatures in Constanza stay fairly even through the year, without a distinct hot or cool season. The warmest month is August, with an average high of 24°C and low of 17°C; the coolest is January, with an average low of 13°C and high of 21°C.
Days typically run about 7°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 21 | 21 | 22 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 22 | 21 |
| Avg low (°C) | 13 | 13 | 14 | 15 | 16 | 17 | 17 | 17 | 17 | 16 | 15 | 14 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 21 | 13 |
| Feb | 21 | 13 |
| Mar | 22 | 14 |
| Apr | 23 | 15 |
| May | 23 | 16 |
| Jun | 24 | 17 |
| Jul | 24 | 17 |
| Aug | 24 | 17 |
| Sep | 24 | 17 |
| Oct | 24 | 16 |
| Nov | 22 | 15 |
| Dec | 21 | 14 |
Average hourly temperature in Constanza
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 August afternoons, near 24°C, and coldest before dawn in January, near 13°C.
Constanza weather by month
Every month at a glance. Click a month for its detailed page.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 21° / 13° | 55 | 12.5 | 11 | 6.3 |
| Feb | 21° / 13° | 55 | 11.1 | 11.4 | 6.4 |
| Mar | 22° / 14° | 110 | 15 | 11.9 | 6.0 |
| Apr | 23° / 15° | 172 | 19.8 | 12.4 | 5.2 |
| May | 23° / 16° | 282 | 24.9 | 12.9 | 4.5 |
| Jun | 24° / 17° | 176 | 22.4 | 13.1 | 4.8 |
| Jul | 24° / 17° | 116 | 22.3 | 13 | 5.1 |
| Aug | 24° / 17° | 159 | 23.4 | 12.6 | 4.8 |
| Sep | 24° / 17° | 199 | 23.9 | 12.1 | 4.7 |
| Oct | 24° / 16° | 159 | 21.7 | 11.6 | 5.0 |
| Nov | 22° / 15° | 102 | 16.8 | 11.1 | 5.6 |
| Dec | 21° / 14° | 55 | 11.6 | 10.9 | 6.4 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Constanza gets about 1638 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.
The wetter season lasts 7.0 months, from around Apr 5 to Nov 2, peaking in May at about 83% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 30.
May is the wettest month by volume, with 282 mm over about 25 wet days; February is the driest, with 55 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 40 | 40 | 48 | 66 | 80 | 75 | 72 | 75 | 79 | 71 | 55 | 38 |
| Rain days | 13 | 11 | 15 | 20 | 25 | 22 | 22 | 23 | 24 | 22 | 17 | 12 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 40 | 13 |
| Feb | 40 | 11 |
| Mar | 48 | 15 |
| Apr | 66 | 20 |
| May | 80 | 25 |
| Jun | 75 | 22 |
| Jul | 72 | 22 |
| Aug | 75 | 23 |
| Sep | 79 | 24 |
| Oct | 71 | 22 |
| Nov | 55 | 17 |
| Dec | 38 | 12 |
Monthly rainfall
Over a full year, Constanza collects about 1638 mm of rain across 225 wet days — roughly 137 mm in an average month.
It doesn’t fall evenly. May is the wettest month with 282 mm, while February is the driest at just 55 mm. The three wettest months alone bring about 40% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 55 | 55 | 110 | 172 | 282 | 176 | 116 | 159 | 199 | 159 | 102 | 55 |
| Rain days | 13 | 11 | 15 | 20 | 25 | 22 | 22 | 23 | 24 | 22 | 17 | 12 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 55 | 13 |
| Feb | 55 | 11 |
| Mar | 110 | 15 |
| Apr | 172 | 20 |
| May | 282 | 25 |
| Jun | 176 | 22 |
| Jul | 116 | 22 |
| Aug | 159 | 23 |
| Sep | 199 | 24 |
| Oct | 159 | 22 |
| Nov | 102 | 17 |
| Dec | 55 | 12 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Constanza, 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 November 15 and lasts for 4.4 months, ending around March 27. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 69% of the time on average.
The cloudier part of the year begins around March 28 and lasts for 3.2 months, ending around July 3. The cloudiest month is May, when it is overcast or mostly cloudy 76% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 66 | 69 | 55 | 43 | 24 | 32 | 46 | 41 | 35 | 38 | 49 | 63 |
| Cloudier (%) | 34 | 31 | 45 | 57 | 76 | 68 | 54 | 59 | 65 | 62 | 51 | 37 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 66 | 34 |
| Feb | 69 | 31 |
| Mar | 55 | 45 |
| Apr | 43 | 57 |
| May | 24 | 76 |
| Jun | 32 | 68 |
| Jul | 46 | 54 |
| Aug | 41 | 59 |
| Sep | 35 | 65 |
| Oct | 38 | 62 |
| Nov | 49 | 51 |
| Dec | 63 | 37 |
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 1, brings about 13 h 06 min of light; the shortest, around January 1, only 10 h 54 min — a swing of roughly 2 h 12 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.0 | 11.4 | 11.9 | 12.4 | 12.9 | 13.1 | 13.0 | 12.6 | 12.1 | 11.6 | 11.1 | 10.9 |
| Sunrise (AM) | 7:23 | 7:17 | 6:57 | 6:30 | 6:13 | 6:09 | 6:17 | 6:28 | 6:34 | 6:41 | 6:55 | 7:13 |
| Sunset (PM) | 6:22 | 6:38 | 6:49 | 6:56 | 7:06 | 7:17 | 7:20 | 7:06 | 6:40 | 6:15 | 6:01 | 6:05 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 11.0 | 7:23 | 6:22 |
| Feb | 11.4 | 7:17 | 6:38 |
| Mar | 11.9 | 6:57 | 6:49 |
| Apr | 12.4 | 6:30 | 6:56 |
| May | 12.9 | 6:13 | 7:06 |
| Jun | 13.1 | 6:09 | 7:17 |
| Jul | 13.0 | 6:17 | 7:20 |
| Aug | 12.6 | 6:28 | 7:06 |
| Sep | 12.1 | 6:34 | 6:40 |
| Oct | 11.6 | 6:41 | 6:15 |
| Nov | 11.1 | 6:55 | 6:01 |
| Dec | 10.9 | 7:13 | 6:05 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Constanza averages about 6 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 2 and 12 days.
The sunnier stretch runs 4.1 months, from around Nov 17 to Mar 22. The sunniest month is January, with roughly 11 sunny days (mixed).
The greyest month is May, down near 2 sunny days — about 80% fewer than the January peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 11 | 10 | 7 | 4 | 2 | 4 | 6 | 5 | 4 | 5 | 6 | 10 |
| Sky | Mixed | Mixed | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Mixed |
| Sunny days | Sky | |
|---|---|---|
| Jan | 11 | Mixed |
| Feb | 10 | Mixed |
| Mar | 7 | Gloomy |
| Apr | 4 | Gloomy |
| May | 2 | Gloomy |
| Jun | 4 | Gloomy |
| Jul | 6 | Gloomy |
| Aug | 5 | Gloomy |
| Sep | 4 | Gloomy |
| Oct | 5 | Gloomy |
| Nov | 6 | Gloomy |
| Dec | 10 | 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 Constanza, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 6.8 months, from around April 28 to November 20. The muggiest month is September, when the air feels humid, muggy or worse about 98% of the time.
The most comfortable stretch runs from around November 21 to April 27, and January is the most comfortable month — the air is dry or comfortable 88% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 16 | 20 | 16 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 9 |
| Comfortable (%) | 72 | 71 | 63 | 45 | 15 | 4 | 6 | 2 | 2 | 6 | 29 | 60 |
| Humid (%) | 12 | 9 | 21 | 49 | 75 | 80 | 80 | 78 | 79 | 81 | 66 | 31 |
| Muggy (%) | 0 | 0 | 0 | 1 | 10 | 16 | 15 | 19 | 19 | 13 | 3 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| Jan | 16 | 72 | 12 | 0 |
| Feb | 20 | 71 | 9 | 0 |
| Mar | 16 | 63 | 21 | 0 |
| Apr | 5 | 45 | 49 | 1 |
| May | 0 | 15 | 75 | 10 |
| Jun | 0 | 4 | 80 | 16 |
| Jul | 0 | 6 | 80 | 15 |
| Aug | 0 | 2 | 78 | 19 |
| Sep | 0 | 2 | 79 | 19 |
| Oct | 0 | 6 | 81 | 13 |
| Nov | 2 | 29 | 66 | 3 |
| Dec | 9 | 60 | 31 | 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.
Wind in Constanza is steady company: average speeds sit near 6 km/h — calm — in every month of the year, with no meaningful windy or calm season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 6 | 6 | 6 | 5 | 5 | 6 | 7 | 6 | 5 | 5 | 5 | 6 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 6 | calm |
| Feb | 6 | calm |
| Mar | 6 | calm |
| Apr | 5 | calm |
| May | 5 | calm |
| Jun | 6 | calm |
| Jul | 7 | calm |
| Aug | 6 | calm |
| Sep | 5 | calm |
| Oct | 5 | calm |
| Nov | 5 | calm |
| Dec | 6 | calm |
Best time to visit Constanza
To characterize how pleasant the weather is in Constanza throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around early November, Constanza 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 18°C and 28°C. Based on this score, the best time of year to visit Constanza for general outdoor tourist activities is from late October to mid April, with a peak score in the last week of January.
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) | 6.3 | 6.4 | 6.0 | 5.2 | 4.5 | 4.8 | 5.1 | 4.9 | 4.7 | 5.0 | 5.6 | 6.4 |
| Rating | good | good | good | fair | fair | fair | fair | fair | fair | fair | good | good |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 6.3 | good |
| Feb | 6.4 | good |
| Mar | 6.0 | good |
| Apr | 5.2 | fair |
| May | 4.5 | fair |
| Jun | 4.8 | fair |
| Jul | 5.1 | fair |
| Aug | 4.9 | fair |
| Sep | 4.7 | fair |
| Oct | 5.0 | fair |
| Nov | 5.6 | good |
| Dec | 6.4 | good |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. In Constanza it holds close to 4.4 all year, so any month is about as good as another for hot-weather activities.
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 Constanza, 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.
Constanza packs about the same all year — highs hold near 24°C. Across the year the things worth having are light clothes, rain gear and sun protection.
In August, Constanza sees daytime highs around 24°C and nights near 17°C. Pack rain gear and sun protection. Worth having: light clothes. About 23 days see rain.
Sea temperature near Constanza
Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.
The sea at the nearest coast (about 61 km away) is warmest in September at about 29°C and coldest in February near 27°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 27 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 27 | Warm |
| May | 28 | Warm |
| Jun | 28 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Warm |
UV index (midday) in Constanza 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 Constanza peaks around March 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 9 | 11 | 13 | 13 | 12 | 12 | 13 | 13 | 12 | 10 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 13 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Extreme |
| Nov | 8 | Very high |
| Dec | 7 | High |
Average hourly UV index in Constanza
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 March the burn window is concentrated in the middle of the day: about 8 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) | 6.5 | 7.5 | 8 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 7.5 | 7.5 | 6.5 | 6 |
| UV ≥ 6 (h/day) | 4 | 5 | 6 | 6.5 | 6 | 6.5 | 6.5 | 6.5 | 5.5 | 5 | 4 | 3 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 6.5 | 4 |
| Feb | 7.5 | 5 |
| Mar | 8 | 6 |
| Apr | 8.5 | 6.5 |
| May | 8.5 | 6 |
| Jun | 8.5 | 6.5 |
| Jul | 8.5 | 6.5 |
| Aug | 8.5 | 6.5 |
| Sep | 7.5 | 5.5 |
| Oct | 7.5 | 5 |
| Nov | 6.5 | 4 |
| Dec | 6 | 3 |
Air quality in Constanza 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 Constanza is worst in June — around 31 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (February, 17 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) | 18 | 17 | 18 | 18 | 23 | 31 | 29 | 26 | 25 | 26 | 21 | 18 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 17 | Moderate |
| Mar | 18 | Moderate |
| Apr | 18 | Moderate |
| May | 23 | Moderate |
| Jun | 31 | Moderate |
| Jul | 29 | Moderate |
| Aug | 26 | Moderate |
| Sep | 25 | Moderate |
| Oct | 26 | Moderate |
| Nov | 21 | Moderate |
| Dec | 18 | Moderate |
Growing season
Constanza 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 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Constanza banks about 3,325 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 222 | 206 | 247 | 263 | 299 | 307 | 321 | 330 | 314 | 312 | 266 | 238 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 222 |
| Feb | 206 |
| Mar | 247 |
| Apr | 263 |
| May | 299 |
| Jun | 307 |
| Jul | 321 |
| Aug | 330 |
| Sep | 314 |
| Oct | 312 |
| Nov | 266 |
| Dec | 238 |
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.
Constanza receives about 5.3 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.1 and 6.3 kWh/m².
The brighter stretch of the year lasts 6.7 months, from around Mar 9 to Sep 29. The brightest month is July, averaging about 6.3 kWh/m² (intense).
The dimmest month is December, down near 4.1 kWh/m² — roughly 34% less than the July peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.3 | 4.9 | 5.3 | 5.7 | 5.6 | 6.1 | 6.3 | 6.0 | 5.6 | 4.9 | 4.2 | 4.1 |
| Level | Bright | Bright | Bright | Bright | Bright | Intense | Intense | Intense | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 4.3 | Bright |
| Feb | 4.9 | Bright |
| Mar | 5.3 | Bright |
| Apr | 5.7 | Bright |
| May | 5.6 | Bright |
| Jun | 6.1 | Intense |
| Jul | 6.3 | Intense |
| Aug | 6.0 | Intense |
| Sep | 5.6 | Bright |
| Oct | 4.9 | Bright |
| Nov | 4.2 | Bright |
| Dec | 4.1 | Bright |
Where is Constanza?
Constanza sits at 18.9°N, 70.7°W, 1,177 m above sea level, in Dominican Republic. The nearest listed city is Jarabacoa, 26 km away.
Topography around Constanza
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Constanza.
Within 3 km, the terrain around Constanza has significant variations in elevation — a maximum elevation change of 572 m around an average of 1,244 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,080 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,072 m.
The land around Constanza is covered by trees (39%), grassland (27%) and cropland (22%) within 3 km, trees (71%) and grassland (25%) within 16 km, and trees (67%) within 80 km.
Dominican Republic travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / C
- 120 V · 60 Hz
- Prices
- ≈ 39% of US
- price level, 2025
- GDP per capita
- $11,059
- 2025
- Happiness
- 6.1 / 10
- World Happiness, 2025
- Safe drinking water
- 45%
- of population, 2024
- Homicide rate
- 10.9
- per 100k, 2023
- Road deaths
- 64.6
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Moderate
- EF EPI 503
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 Constanza (18.9092°, -70.745°, elevation 1,177 m), 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).