Vs > Bissau
 | Jamestown vs Bissau Climate & Distance Between |  |
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- The distance between Jamestown, Saint Helena and Bissau, Guinea-Bissau is approximately 3,275 km or 2,035 mi.
- To reach Jamestown in this distance one would set out from Bissau bearing 160.4° or SSE
 and follow the great circles arc to approach Jamestown bearing 160.1° or SSE .
- Jamestown has a subtropical hot desert climate (BWh) whereas Bissau has a tropical wet and dry/ savanna climate with dry winters (Aw).
- The annual average temperature is 4.6 °C (8.3°F) cooler.
- Average monthly temperatures vary by 1.5 °C (2.7°F) more in Jamestown. The continentality subtype is truly hyperoceanic as opposed to extremely hyperoceanic.
- Total annual precipitation averages 1840.5 mm (72.5 in) less which is equivalent to 1840.5 l/m² (45.17 US gal/ft²) or 18,405,000 l/ha (1,967,617 US gal/ac) less. About 0 as much.
- The altitude of the sun at midday is overall 2.5° lower in Jamestown than in Bissau.
- Relative humidity levels are 12.8% higher.
- The mean dew point temperature is 0.6°C (1.1°F) lower.
Climate Comparison Table
The table shows values for Jamestown relative to Bissau. You can also view this comparison the other way around from the perspective of Bissau vs Jamestown.
| | |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
|
Annual |
 | Average Max Temperature °C ( °F) |
-5 (-9) |
-6 (-11) |
-6 (-11) |
-6 (-11) |
-9 (-16) |
-8 (-14) |
-8 (-14) |
-7 (-13) |
-8 (-14) |
-8 (-14) |
-9 (-16) |
-7 (-13) |
|
-7 (-13) |
 | Average Temperature °C ( °F) |
-1 (-2) |
-2 (-4) |
-3 (-5) |
-3 (-5) |
-6 (-10) |
-6 (-11) |
-7 (-12) |
-6 (-11) |
-7 (-12) |
-7 (-13) |
-6 (-11) |
-3 (-5) |
|
-5 (-8) |
 | Average Min Temperature °C ( °F) |
+3 (+5) |
+2 (+4) |
+2 (+4) |
0 (0) |
-3 (-5) |
-5 (-9) |
-6 (-11) |
-6 (-11) |
-6 (-11) |
-5 (-9) |
-4 (-7) |
0 (0) |
|
-2 (-4) |
 | Average Precipitation mm (in) |
+7 (+0) |
+9 (+0) |
+20 (+1) |
+9 (+0) |
-6 (0) |
-149 (-6) |
-461 (-18) |
-607 (-24) |
-411 (-16) |
-197 (-8) |
-44 (-2) |
-10 (0) |
|
-1841 (-72) |
 | Number of Precipitation Days (% chance of precip. on a day ) |
0 ( 0) |
0 ( 0) |
+2 (+6) |
+2 (+7) |
+1 (+3) |
-8 ( -27) |
-16 ( -52) |
-25 ( -81) |
-22 ( -73) |
-17 ( -55) |
-8 ( -27) |
-1 ( -3) |
|
-92 ( -25) |
 | Average Daylight Hours & Minutes/ Day |
+1h 26' |
+0h 54' |
+0h 10' |
-0h 37' |
-1h 17' |
-1h 36' |
-1h 28' |
-0h 54' |
-0h 08' |
+0h 38' |
+1h 18' |
+1h 36' |
|
0h 00' |
 | Sun altitude at solar noon on the 21st day (°) |
+27 |
+16.2 |
-4.6 |
-27.5 |
-27.7 |
-27.7 |
-27.7 |
-27.2 |
-5.2 |
+16.6 |
+26.7 |
+27.8 |
| -2.5 |
 | Relative Humidity (%) |
+29 |
+29 |
+22 |
+19 |
+17 |
+6 |
-3 |
-5 |
-1 |
+3 |
+14 |
+24 |
|
+12.8 |
 | Average Dew Point Temperature °C & (°F) |
+8.4 (+15) |
+7.2 (+13) |
+3.8 (+7) |
+2.6 (+5) |
-1 (-2) |
-4.3 (-8) |
-6.9 (-12) |
-6.9 (-12) |
-6.5 (-12) |
-6 (-11) |
-2.2 (-4) |
+4.3 (+8) |
|
-0.6 (-1) |
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Jamestown vs Bissau 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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