Summer weather

Calculations are based on the last 8 years of historical weather data.

Temperatures

Maximum Temperatures

Period	San Francisco	Porto Alegre
Jun 1	68.2°F	68.4°F
Jun 8	69.3°F	70.0°F
Jun 15	70.5°F	68.4°F
Jun 22	69.6°F	68.0°F
Jul 1	70.0°F	65.1°F
Jul 8	71.6°F	66.2°F
Jul 15	70.7°F	68.4°F
Jul 22	70.9°F	70.7°F
Aug 1	71.2°F	72.0°F
Aug 8	72.0°F	67.1°F
Aug 15	72.9°F	70.5°F
Aug 22	72.9°F	72.5°F
Average	68.9°F	70.8°F

Minimum Temperatures

Period	San Francisco	Porto Alegre
Jun 1	53.6°F	54.9°F
Jun 8	55.2°F	55.2°F
Jun 15	55.4°F	54.3°F
Jun 22	55.6°F	54.9°F
Jul 1	55.4°F	51.3°F
Jul 8	56.1°F	52.9°F
Jul 15	55.9°F	51.8°F
Jul 22	56.5°F	54.5°F
Aug 1	57.2°F	55.0°F
Aug 8	58.1°F	53.2°F
Aug 15	58.6°F	53.8°F
Aug 22	58.1°F	54.7°F
Average	53.9°F	56.3°F

Maximum/minimum temperature averages are computed by averaging the max/min temperature of each day for a given period.

Conditions

Sunny Weather

Period	San Francisco	Porto Alegre
Jun 1	12.4 hours/day	3.8 hours/day
Jun 8	11.2 hours/day	5.3 hours/day
Jun 15	13.9 hours/day	5.0 hours/day
Jun 22	11.7 hours/day	4.6 hours/day
Jul 1	12.3 hours/day	5.3 hours/day
Jul 8	12.9 hours/day	3.8 hours/day
Jul 15	12.3 hours/day	5.4 hours/day
Jul 22	11.8 hours/day	5.3 hours/day
Aug 1	11.1 hours/day	5.8 hours/day
Aug 8	11.5 hours/day	3.8 hours/day
Aug 15	10.9 hours/day	6.4 hours/day
Aug 22	11.5 hours/day	7.5 hours/day
Average	5.2 hours/day	12.0 hours/day

Sun hours are computed from the number of hours of direct sunlight. The length of the day can affect these measurements; for example, northern cities have longer days in summer.

Precipitation Levels

Period	San Francisco	Porto Alegre
Jun 1	0.0in	0.2in
Jun 8	0.0in	0.2in
Jun 15	0.0in	0.3in
Jun 22	0.0in	0.2in
Jul 1	0.0in	0.2in
Jul 8	0.0in	0.3in
Jul 15	0.0in	0.1in
Jul 22	0.0in	0.2in
Aug 1	0.0in	0.1in
Aug 8	0.0in	0.3in
Aug 15	0.0in	0.1in
Aug 22	0.0in	0.2in
Average	0.2in	0.0in

Average amount of precipitation that falls in a form of a rain, snow, sleet or hail.

Wind Speed

Period	San Francisco	Porto Alegre
Jun 1	12.3mph	8.3mph
Jun 8	12.5mph	8.6mph
Jun 15	12.3mph	7.4mph
Jun 22	11.6mph	9.0mph
Jul 1	11.4mph	8.4mph
Jul 8	10.7mph	8.0mph
Jul 15	10.9mph	8.6mph
Jul 22	10.4mph	7.8mph
Aug 1	10.6mph	7.7mph
Aug 8	10.8mph	9.8mph
Aug 15	10.6mph	8.6mph
Aug 22	10.1mph	9.0mph
Average	8.4mph	11.2mph

Humidity

Period	San Francisco	Porto Alegre
Jun 1	73.6%	78.8%
Jun 8	71.3%	76.0%
Jun 15	71.3%	78.0%
Jun 22	74.5%	78.1%
Jul 1	75.0%	76.8%
Jul 8	75.1%	78.5%
Jul 15	76.6%	74.3%
Jul 22	75.1%	74.5%
Aug 1	76.5%	73.9%
Aug 8	75.6%	75.6%
Aug 15	75.6%	73.2%
Aug 22	74.6%	71.0%
Average	75.7%	74.6%

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Astronomy

Sunrise Time

Period	San Francisco	Porto Alegre
Jun 1	5:49	7:14
Jun 8	5:47	7:17
Jun 15	5:48	7:20
Jun 22	5:50	7:22
Jul 1	5:53	7:22
Jul 8	5:58	7:20
Jul 15	6:02	7:18
Jul 22	6:09	7:14
Aug 1	6:16	7:08
Aug 8	6:22	7:02
Aug 15	6:28	6:55
Aug 22	6:35	6:46
Average	7:12	6:06

Sunrise times are output in the local timezone of each place.

Sunset Time

Period	San Francisco	Porto Alegre
Jun 1	20:28	17:32
Jun 8	20:32	17:32
Jun 15	20:34	17:32
Jun 22	20:35	17:35
Jul 1	20:35	17:38
Jul 8	20:32	17:41
Jul 15	20:29	17:44
Jul 22	20:23	17:49
Aug 1	20:14	17:54
Aug 8	20:07	17:58
Aug 15	19:58	18:02
Aug 22	19:47	18:07
Average	17:48	20:24

Sunset times are output in the local timezone of each place.

Useful Day Length

Period	San Francisco	Porto Alegre
Jun 1	13:28 hours	10:18 hours
Jun 8	13:32 hours	10:14 hours
Jun 15	13:34 hours	10:13 hours
Jun 22	13:35 hours	10:13 hours
Jul 1	13:35 hours	10:16 hours
Jul 8	13:32 hours	10:20 hours
Jul 15	13:29 hours	10:26 hours
Jul 22	13:23 hours	10:35 hours
Aug 1	13:14 hours	10:46 hours
Aug 8	13:07 hours	10:56 hours
Aug 15	12:58 hours	11:02 hours
Aug 22	12:47 hours	11:07 hours
Average	10:30 hours	13:24 hours

Discards daylight hours before 7 AM. In places that are located to the west of the timezone, the sun rises and sets later compared to the cities that are located to the east. This means that the useful day length is longer in the cities located to the west of the time zone.

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