Climate and average weather in Bor
In Bor, the summers are sweltering, dry, and mostly clear and the winters are hot and partly cloudy.
Over the course of the year, the temperature in Bor typically varies from 23°C to 38°C, and is rarely below 22°C or above 41°C. February is the hottest month of the year, while July is the coldest.
Based on the travel score, the best time of year to visit Bor for warm-weather activities is from late May to mid December.
- Hottest
- Feb
- 38°
- Coldest
- Jul
- 23°
- Wettest
- Jul
- 141 mm
- Driest
- Jan
- 3 mm
- Rain / yr
- 930 mm
- 145 wet days
- Daylight
- 11.6–12.4 h
- shortest–longest
- Elevation
- 429 m
- 6.2°N
- Clearest
- Dec
- 44% cloud
Bor is city in South Sudan.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Bor 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 May to mid December.
Temperature through the year
Daily average highs and lows in Bor, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 2.9 months, from January 13 to April 10, with daily high temperatures above 36°C. The hottest month of the year in Bor is February, with an average high of 38°C and low of 26°C.
The cool season lasts 4.7 months, from June 8 to October 27, with daily high temperatures below 31°C. The coldest month of the year in Bor is July, with an average low of 23°C and high of 30°C.
Days typically run about 9°C warmer than nights, with the widest day–night swing (around 12°C) in February.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 36 | 38 | 38 | 35 | 33 | 31 | 30 | 30 | 31 | 31 | 33 | 35 |
| Avg low (°C) | 25 | 26 | 27 | 26 | 25 | 24 | 23 | 23 | 23 | 23 | 24 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 36 | 25 |
| Feb | 38 | 26 |
| Mar | 38 | 27 |
| Apr | 35 | 26 |
| May | 33 | 25 |
| Jun | 31 | 24 |
| Jul | 30 | 23 |
| Aug | 30 | 23 |
| Sep | 31 | 23 |
| Oct | 31 | 23 |
| Nov | 33 | 24 |
| Dec | 35 | 24 |
How hot and cold Bor really feels
The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.
On the hottest afternoons, once humidity is folded in, Bor feels like about 38°C (around April 6). Nearly every day a year carries some heat stress, peaking in April.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | 36 | 38 | 38 | 38 | 37 | 35 | 33 | 33 | 34 | 35 | 35 | 35 |
| Air high (°C) | 36 | 38 | 38 | 35 | 33 | 31 | 30 | 30 | 31 | 31 | 33 | 35 |
| Feels-like low (°C) | 25 | 26 | 27 | 26 | 25 | 24 | 23 | 23 | 23 | 23 | 24 | 24 |
| Air low (°C) | 25 | 26 | 27 | 26 | 25 | 24 | 23 | 23 | 23 | 23 | 24 | 24 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | 36 | 36 | 25 | 25 |
| Feb | 38 | 38 | 26 | 26 |
| Mar | 38 | 38 | 27 | 27 |
| Apr | 38 | 35 | 26 | 26 |
| May | 37 | 33 | 25 | 25 |
| Jun | 35 | 31 | 24 | 24 |
| Jul | 33 | 30 | 23 | 23 |
| Aug | 33 | 30 | 23 | 23 |
| Sep | 34 | 31 | 23 | 23 |
| Oct | 35 | 31 | 23 | 23 |
| Nov | 35 | 33 | 24 | 24 |
| Dec | 35 | 35 | 24 | 24 |
Average hourly temperature in Bor
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 February afternoons, near 38°C, and coldest before dawn in July, near 23°C.
Bor 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 | 36° / 25° | 3 | 0.6 | 11.7 | 2.3 |
| Feb | 38° / 26° | 4 | 1.3 | 11.8 | 1.4 |
| Mar | 38° / 27° | 23 | 4.6 | 12 | 1.3 |
| Apr | 35° / 26° | 65 | 11.9 | 12.1 | 2.1 |
| May | 33° / 25° | 126 | 17.9 | 12.3 | 3.0 |
| Jun | 31° / 24° | 122 | 18.5 | 12.4 | 3.6 |
| Jul | 30° / 23° | 141 | 21.5 | 12.3 | 3.7 |
| Aug | 30° / 23° | 140 | 21.5 | 12.2 | 3.7 |
| Sep | 31° / 23° | 121 | 17 | 12 | 3.9 |
| Oct | 31° / 23° | 135 | 18.9 | 11.9 | 3.5 |
| Nov | 33° / 24° | 44 | 9.5 | 11.7 | 3.6 |
| Dec | 35° / 24° | 7 | 1.5 | 11.6 | 3.1 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Bor gets about 930 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.
The wetter season lasts 6.9 months, from around Apr 14 to Nov 10, peaking in July at about 73% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 10.
July is the wettest month by volume, with 141 mm over about 22 wet days; January is the driest, with 3 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 2 | 4 | 16 | 40 | 57 | 62 | 69 | 70 | 57 | 59 | 32 | 5 |
| Rain days | 1 | 1 | 5 | 12 | 18 | 19 | 22 | 22 | 17 | 19 | 10 | 2 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 2 | 1 |
| Feb | 4 | 1 |
| Mar | 16 | 5 |
| Apr | 40 | 12 |
| May | 57 | 18 |
| Jun | 62 | 19 |
| Jul | 69 | 22 |
| Aug | 70 | 22 |
| Sep | 57 | 17 |
| Oct | 59 | 19 |
| Nov | 32 | 10 |
| Dec | 5 | 2 |
Monthly rainfall
Over a full year, Bor collects about 930 mm of rain across 145 wet days — roughly 77 mm in an average month.
It doesn’t fall evenly. July is the wettest month with 141 mm, while January is the driest at just 3 mm. The three wettest months alone bring about 45% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 3 | 4 | 23 | 65 | 126 | 122 | 141 | 140 | 121 | 135 | 44 | 7 |
| Rain days | 1 | 1 | 5 | 12 | 18 | 19 | 22 | 22 | 17 | 19 | 10 | 2 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 3 | 1 |
| Feb | 4 | 1 |
| Mar | 23 | 5 |
| Apr | 65 | 12 |
| May | 126 | 18 |
| Jun | 122 | 19 |
| Jul | 141 | 22 |
| Aug | 140 | 22 |
| Sep | 121 | 17 |
| Oct | 135 | 19 |
| Nov | 44 | 10 |
| Dec | 7 | 2 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Bor, 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 12 and lasts for 4.1 months, ending around March 16. The clearest month is December, when the sky is clear, mostly clear, or partly cloudy 71% of the time on average.
The cloudier part of the year begins around March 17 and lasts for 5.8 months, ending around September 8. The cloudiest month is April, when it is overcast or mostly cloudy 64% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 66 | 65 | 50 | 36 | 39 | 44 | 42 | 42 | 48 | 37 | 54 | 71 |
| Cloudier (%) | 34 | 35 | 50 | 64 | 61 | 56 | 58 | 58 | 52 | 63 | 46 | 29 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 66 | 34 |
| Feb | 65 | 35 |
| Mar | 50 | 50 |
| Apr | 36 | 64 |
| May | 39 | 61 |
| Jun | 44 | 56 |
| Jul | 42 | 58 |
| Aug | 42 | 58 |
| Sep | 48 | 52 |
| Oct | 37 | 63 |
| Nov | 54 | 46 |
| Dec | 71 | 29 |
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 10, brings about 12 h 24 min of light; the shortest, around January 1, only 11 h 36 min — a swing of roughly 0 h 48 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.7 | 11.8 | 12.0 | 12.1 | 12.3 | 12.4 | 12.3 | 12.2 | 12.0 | 11.9 | 11.7 | 11.6 |
| Sunrise (AM) | 7:13 | 7:14 | 7:05 | 6:50 | 6:42 | 6:43 | 6:50 | 6:52 | 6:47 | 6:43 | 6:48 | 7:01 |
| Sunset (PM) | 6:53 | 7:02 | 7:02 | 6:58 | 6:58 | 7:05 | 7:09 | 7:04 | 6:49 | 6:35 | 6:30 | 6:39 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 11.7 | 7:13 | 6:53 |
| Feb | 11.8 | 7:14 | 7:02 |
| Mar | 12.0 | 7:05 | 7:02 |
| Apr | 12.1 | 6:50 | 6:58 |
| May | 12.3 | 6:42 | 6:58 |
| Jun | 12.4 | 6:43 | 7:05 |
| Jul | 12.3 | 6:50 | 7:09 |
| Aug | 12.2 | 6:52 | 7:04 |
| Sep | 12.0 | 6:47 | 6:49 |
| Oct | 11.9 | 6:43 | 6:35 |
| Nov | 11.7 | 6:48 | 6:30 |
| Dec | 11.6 | 7:01 | 6:39 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Bor averages about 8 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 4 and 16 days.
The sunnier stretch runs 3.9 months, from around Nov 12 to Mar 11. The sunniest month is December, with roughly 15 sunny days (mixed).
The greyest month is April, down near 5 sunny days — about 67% fewer than the December peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 15 | 12 | 8 | 5 | 6 | 7 | 6 | 6 | 8 | 5 | 9 | 15 |
| Sky | Mixed | Mixed | Mixed | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Mixed | Mixed |
| Sunny days | Sky | |
|---|---|---|
| Jan | 15 | Mixed |
| Feb | 12 | Mixed |
| Mar | 8 | Mixed |
| Apr | 5 | Gloomy |
| May | 6 | Gloomy |
| Jun | 7 | Gloomy |
| Jul | 6 | Gloomy |
| Aug | 6 | Gloomy |
| Sep | 8 | Gloomy |
| Oct | 5 | Gloomy |
| Nov | 9 | Mixed |
| Dec | 15 | 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 Bor, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 8.2 months, from around March 28 to December 1. The muggiest month is May, when the air feels humid, muggy or worse about 100% of the time.
The most comfortable stretch runs from around December 2 to March 27, and February is the most comfortable month — the air is dry or comfortable 86% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 75 | 71 | 25 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 37 |
| Comfortable (%) | 15 | 15 | 19 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 21 |
| Humid (%) | 7 | 10 | 25 | 17 | 1 | 0 | 0 | 0 | 0 | 1 | 10 | 20 |
| Muggy (%) | 3 | 4 | 24 | 39 | 18 | 10 | 9 | 7 | 10 | 12 | 34 | 19 |
| Oppressive (%) | 0 | 0 | 6 | 37 | 81 | 90 | 91 | 93 | 90 | 86 | 49 | 3 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| Jan | 75 | 15 | 7 | 3 | 0 |
| Feb | 71 | 15 | 10 | 4 | 0 |
| Mar | 25 | 19 | 25 | 24 | 6 |
| Apr | 1 | 6 | 17 | 39 | 37 |
| May | 0 | 0 | 1 | 18 | 81 |
| Jun | 0 | 0 | 0 | 10 | 90 |
| Jul | 0 | 0 | 0 | 9 | 91 |
| Aug | 0 | 0 | 0 | 7 | 93 |
| Sep | 0 | 0 | 0 | 10 | 90 |
| Oct | 0 | 0 | 1 | 12 | 86 |
| Nov | 2 | 5 | 10 | 34 | 49 |
| Dec | 37 | 21 | 20 | 19 | 3 |
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 Bor is typically calm, near 7 km/h, and varies little with the seasons.
The windier part of the year lasts 5.8 months, from around Nov 15 to May 9. The windiest month is January, averaging about 10 km/h (calm).
The calmer part of the year runs from around May 10 to Nov 14, with August the calmest month at about 5 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 10 | 9 | 9 | 9 | 7 | 6 | 5 | 5 | 5 | 6 | 7 | 9 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 10 | calm |
| Feb | 9 | calm |
| Mar | 9 | calm |
| Apr | 9 | calm |
| May | 7 | calm |
| Jun | 6 | calm |
| Jul | 5 | calm |
| Aug | 5 | calm |
| Sep | 5 | calm |
| Oct | 6 | calm |
| Nov | 7 | calm |
| Dec | 9 | calm |
Hazard calendar for Bor
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Bor's rainy season runs April–October, when most of the year's rain falls.
Best time to visit Bor
To characterize how pleasant the weather is in Bor throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around early June, Bor 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 Bor for general outdoor tourist activities is from late May to mid December, with a peak score in the second 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) | 2.3 | 1.4 | 1.3 | 2.1 | 3.0 | 3.6 | 3.7 | 3.7 | 3.8 | 3.5 | 3.6 | 3.1 |
| Rating | poor | poor | poor | poor | poor | fair | fair | fair | fair | poor | fair | poor |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 2.3 | poor |
| Feb | 1.4 | poor |
| Mar | 1.3 | poor |
| Apr | 2.1 | poor |
| May | 3.0 | poor |
| Jun | 3.6 | fair |
| Jul | 3.7 | fair |
| Aug | 3.7 | fair |
| Sep | 3.8 | fair |
| Oct | 3.5 | poor |
| Nov | 3.6 | fair |
| Dec | 3.1 | poor |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best times of year to visit Bor for hot-weather activities run from mid September to late September and again from early November to late January, with a peak score in the first week of December.
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 Bor, 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.
For a warm-season trip around February (highs near 38°C), the essentials are light clothes and sun protection. In the cold season around July (highs near 30°C), pack light clothes, rain gear and sun protection.
In February, Bor sees daytime highs around 38°C and nights near 26°C. Pack light clothes and sun protection.
UV index (midday) in Bor 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 Bor peaks around March 15 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 9 (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) | 10 | 12 | 14 | 11 | 11 | 11 | 11 | 13 | 12 | 13 | 9 | 9 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Extreme |
| Feb | 12 | Extreme |
| Mar | 14 | Extreme |
| Apr | 11 | Extreme |
| May | 11 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 9 | Very high |
| Dec | 9 | Very high |
Average hourly UV index in Bor
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 6.5 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) | 7.5 | 7.5 | 8 | 7.5 | 8 | 7.5 | 8 | 8 | 8 | 7.5 | 7 | 7 |
| UV ≥ 6 (h/day) | 5 | 6 | 6.5 | 5.5 | 5.5 | 5.5 | 5.5 | 6 | 6 | 6 | 5 | 4.5 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 7.5 | 5 |
| Feb | 7.5 | 6 |
| Mar | 8 | 6.5 |
| Apr | 7.5 | 5.5 |
| May | 8 | 5.5 |
| Jun | 7.5 | 5.5 |
| Jul | 8 | 5.5 |
| Aug | 8 | 6 |
| Sep | 8 | 6 |
| Oct | 7.5 | 6 |
| Nov | 7 | 5 |
| Dec | 7 | 4.5 |
Air quality in Bor 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 Bor is worst in December — around 82 µg/m³ PM2.5 (unhealthy), about 8.3× the cleanest month (May, 10 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) | 81 | 50 | 23 | 14 | 10 | 16 | 17 | 13 | 12 | 11 | 24 | 82 |
| Level | Unhealthy | Poor | Moderate | Moderate | Good | Moderate | Moderate | Moderate | Good | Good | Moderate | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 81 | Unhealthy |
| Feb | 50 | Poor |
| Mar | 23 | Moderate |
| Apr | 14 | Moderate |
| May | 10 | Good |
| Jun | 16 | Moderate |
| Jul | 17 | Moderate |
| Aug | 13 | Moderate |
| Sep | 12 | Good |
| Oct | 11 | Good |
| Nov | 24 | Moderate |
| Dec | 82 | Unhealthy |
Growing season
Bor 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. Bor banks about 6,845 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around March.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 633 | 613 | 689 | 621 | 579 | 517 | 506 | 505 | 504 | 532 | 543 | 602 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 633 |
| Feb | 613 |
| Mar | 689 |
| Apr | 621 |
| May | 579 |
| Jun | 517 |
| Jul | 506 |
| Aug | 505 |
| Sep | 504 |
| Oct | 532 |
| Nov | 543 |
| Dec | 602 |
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.
Bor receives about 5.6 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 5.0 and 6.2 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.0 | 6.2 | 6.0 | 5.8 | 5.5 | 5.1 | 5.0 | 5.3 | 5.6 | 5.5 | 5.5 | 5.5 |
| Level | Bright | Intense | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 6.0 | Bright |
| Feb | 6.2 | Intense |
| Mar | 6.0 | Bright |
| Apr | 5.8 | Bright |
| May | 5.5 | Bright |
| Jun | 5.1 | Bright |
| Jul | 5.0 | Bright |
| Aug | 5.3 | Bright |
| Sep | 5.6 | Bright |
| Oct | 5.5 | Bright |
| Nov | 5.5 | Bright |
| Dec | 5.5 | Bright |
Where is Bor?
Bor sits at 6.2°N, 31.6°E, 429 m above sea level, in South Sudan. The nearest listed city is Juba, 151 km away.
Topography around Bor
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Bor.
Within 3 km, the terrain around Bor has only modest variations in elevation — a maximum elevation change of 8 m around an average of 424 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 18 m; within 80 km, significant variations in elevation — a maximum elevation change of 283 m.
The land around Bor is covered by wetland (56%) and grassland (29%) within 3 km, wetland (57%) and grassland (29%) within 16 km, and grassland (60%) and wetland (22%) within 80 km.
South Sudan travel facts
- Travel advisory
- Level 4
- Do Not Travel
- Prices
- ≈ 6% of US
- price level, 2021
- GDP per capita
- $1,080
- 2015
- Happiness
- 2.8 / 10
- World Happiness, 2019
- Homicide rate
- 14
- per 100k, 2012
- Road deaths
- 36.7
- per 100k/yr, 2019
- Income group
- Low
- 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 Bor (6.2089°, 31.5586°, elevation 429 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. 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).