Vs > Saint Denis, Reunion
 | Ballykelly, Northern Ireland vs Saint Denis, Reunion Climate & Distance Between |  |
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- The distance between Ballykelly, Northern Ireland, Uk and Saint Denis, Reunion, Reunion is approximately 10,299 km or 6,400 mi.
- To reach Ballykelly, Northern Ireland in this distance one would set out from Saint Denis, Reunion bearing 329.4° or NNW
 and follow the great circles arc to approach Ballykelly, Northern Ireland bearing 303.9° or NW .
- Ballykelly, Northern Ireland has a marine west coast climate (Cfb) whereas Saint Denis, Reunion has a tropical monsoonal climate (Am).
- The mean temperature is 14.2 °C (25.5°F) cooler.
- Average monthly temperatures vary by 5 °C (9°F) more in Ballykelly, Northern Ireland. The continentality subtype is barely hyperoceanic as opposed to truly hyperoceanic.
- Total annual precipitation averages 676 mm (26.6 in) less which is equivalent to 676 l/m² (16.59 US gal/ft²) or 6,760,000 l/ha (722,689 US gal/ac) less. About 5/9 as much.
- There are 1270 fewer hours of sunlight per year in Ballykelly, Northern Ireland. In whichever way circa 3h 28' less per day or about 1/2 as many.
- The altitude of the sun at midday is overall 32.6° lower in Ballykelly, Northern Ireland than in Saint Denis, Reunion.
- Relative humidity levels are 8.2% higher.
- The mean dew point temperature is 11.9°C (21.5°F) lower.
Climate Comparison Table
| | |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
|
Annual |
 | Average Max Temperature °C ( °F) |
-23 (-41) |
-23 (-41) |
-19 (-34) |
-16 (-29) |
-12 (-22) |
-9 (-16) |
-7 (-13) |
-7 (-13) |
-8 (-14) |
-13 (-23) |
-17 (-31) |
-21 (-38) |
|
-15 (-26) |
 | Average Temperature °C ( °F) |
-22 (-40) |
-23 (-41) |
-20 (-35) |
-16 (-29) |
-13 (-23) |
-9 (-16) |
-7 (-12) |
-7 (-12) |
-8 (-14) |
-12 (-22) |
-16 (-29) |
-20 (-36) |
|
-14 (-26) |
 | Average Min Temperature °C ( °F) |
-21 (-38) |
-22 (-40) |
-20 (-36) |
-16 (-29) |
-13 (-23) |
-9 (-16) |
-6 (-11) |
-6 (-11) |
-7 (-13) |
-11 (-20) |
-15 (-27) |
-19 (-34) |
|
-14 (-25) |
 | Average Precipitation mm (in) |
-173 (-7) |
-162 (-6) |
-241 (-9) |
-103 (-4) |
-31 (-1) |
-15 (-1) |
+23 (+1) |
+21 (+1) |
+35 (+1) |
+41 (+2) |
-24 (-1) |
-47 (-2) |
|
-676 (-27) |
 | Number of Precipitation Days (% chance of precip. on a day ) |
+2 (+6) |
+1 (+4) |
-1 ( -3) |
+5 (+17) |
+1 (+3) |
+2 (+7) |
+3 (+10) |
+2 (+6) |
+6 (+20) |
+6 (+19) |
+6 (+20) |
+7 (+23) |
|
+40 (+11) |
 | Average Sunlight Hours/ Day |
-6h 07' |
-4h 48' |
-3h 05' |
-1h 50' |
-1h 00' |
-1h 38' |
-2h 36' |
-2h 15' |
-3h 20' |
-4h 23' |
-4h 54' |
-5h 46' |
|
-3h 28' |
 | Average Daylight Hours & Minutes/ Day |
-5h 32' |
-3h 22' |
-0h 36' |
+2h 19' |
+4h 52' |
+6h 15' |
+5h 37' |
+3h 22' |
+0h 31' |
-2h 23' |
-4h 56' |
-6h 15' |
|
0h 00' |
 | Sun altitude at solar noon on the 21st day (°) |
-72.1 |
-54.7 |
-33.5 |
-10.3 |
+6.3 |
+12.7 |
+6.7 |
-10 |
-32.8 |
-55.1 |
-71.5 |
-75.8 |
| -32.6 |
 | Relative Humidity (%) |
+10 |
+7 |
-2 |
+1 |
+2 |
+7 |
+9 |
+12 |
+10 |
+15 |
+15 |
+12 |
|
+8.2 |
 | Average Dew Point Temperature °C & (°F) |
-19.3 (-35) |
-20.3 (-37) |
-19.2 (-35) |
-15.1 (-27) |
-11.5 (-21) |
-7 (-13) |
-4.3 (-8) |
-3.6 (-6) |
-5 (-9) |
-8.4 (-15) |
-12.4 (-22) |
-17.1 (-31) |
|
-11.9 (-21) |
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Ballykelly, Northern Ireland vs Saint Denis, Reunion Discussion
You are welcome to incorporate your thoughts on the differences in climate or other matters such as contrasts in culture, standard of living, demographics etc.
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