Vs > Helwan
 | Rio Negro vs Helwan Climate & Distance Between |  |
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- The distance between Rio Negro, Brazil and Helwan, Egypt is approximately 10,641 km or 6,612 mi.
- To reach Rio Negro in this distance one would set out from Helwan bearing 243.1° or WSW
 and follow the great circles arc to approach Rio Negro bearing 239.4° or WSW .
- Rio Negro has a subtropical highland climate with no dry season (Cfb) whereas Helwan has a subtropical hot desert climate (BWh).
- Rio Negro is in or near the warm temperate moist forest biome whereas Helwan is in or near the subtropical desert biome.
- The annual mean temperature is 4.7 °C (8.4°F) cooler.
- Average monthly temperatures vary by 6.3 °C (11.3°F) less in Rio Negro. The continentality subtype is barely hyperoceanic as opposed to truly oceanic.
- Total annual precipitation averages 1401.7 mm (55.2 in) more which is equivalent to 1401.7 l/m² (34.4 US gal/ft²) or 14,017,000 l/ha (1,498,510 US gal/ac) more. About 78 7/8 as much.
- The altitude of the sun at midday is overall 3° higher in Rio Negro than in Helwan.
- Relative humidity levels are 28% higher.
- The mean dew point temperature is 2.1°C (3.8°F) higher.
Climate Comparison Table
The table shows values for Rio Negro relative to Helwan. You can also view this comparison the other way around from the perspective of Helwan vs Rio Negro.
| | |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
|
Annual |
 | Average Temperature °C ( °F) |
+7 (+13) |
+6 (+11) |
+2 (+4) |
-5 (-9) |
-11 (-19) |
-14 (-26) |
-15 (-28) |
-14 (-25) |
-11 (-19) |
-7 (-12) |
-1 (-1) |
+5 (+10) |
|
-5 (-8) |
 | Average Precipitation mm (in) |
+148 (+6) |
+168 (+7) |
+146 (+6) |
+66 (+3) |
+97 (+4) |
+93 (+4) |
+80 (+3) |
+88 (+3) |
+118 (+5) |
+145 (+6) |
+105 (+4) |
+149 (+6) |
|
+1402 (+55) |
 | Average Daylight Hours & Minutes/ Day |
+3h 07' |
+1h 56' |
+0h 21' |
-1h 20' |
-2h 46' |
-3h 29' |
-3h 10' |
-1h 57' |
-0h 18' |
+1h 23' |
+2h 48' |
+3h 29' |
|
0h 00' |
 | Sun altitude at solar noon on the 21st day (°) |
+43 |
+24.5 |
+3.1 |
-20.1 |
-36.6 |
-43.1 |
-37 |
-20.3 |
+2.5 |
+25.1 |
+43 |
+50.6 |
| +3 |
 | Relative Humidity (%) |
+19 |
+26 |
+29 |
+40 |
+40 |
+38 |
+29 |
+24 |
+26 |
+25 |
+20 |
+19 |
|
+27.9 |
 | Average Dew Point Temperature °C & (°F) |
+11.1 (+20) |
+11.6 (+21) |
+8.8 (+16) |
+5.4 (+10) |
+0.3 (+1) |
-4.2 (-8) |
-7.9 (-14) |
-7.8 (-14) |
-4.4 (-8) |
-0.7 (-1) |
+4 (+7) |
+9.2 (+17) |
|
+2.1 (+4) |
There are so many comparison pages. Please post a link to help people find them:
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Rio Negro vs Waiouru Mwd, New Zealand
Rio Negro vs Jokkmokk, Sweden
Rio Negro vs Dikson Island, Russia
Helwan vs Milledgeville, Ga, Usa
Helwan vs Detroit Lakes, Mn, Usa
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Potsdam vs Te Teko
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Rio Negro vs Helwan 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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