Winter
Dec → Feb19°
nights 10 to 11°
- 5 rainy days · 49 mm
When is the best time to visit San Diego?
- Jan19°not recommended
- Feb19°not recommended
- Mar19°fair
- Apr20°recommended
- May21°recommended
- Jun22°fair
- Jul24°recommended
- Aug25°recommended
- Sep25°recommended
- Oct24°recommended
- Nov22°fair
- Dec19°not recommended
RecommendedFairNot recommended· afternoon temperature
The weather in San Diego, month by month
The table of averages, month by month
| Month | High | Low | Rainfall | Rainy days | Best |
|---|---|---|---|---|---|
| January | 19° | 10° | 50 mm | 5 d | |
| February | 19° | 11° | 56 mm | 5 d | |
| March | 19° | 13° | 37 mm | 4 d | |
| April | 20° | 14° | 17 mm | 3 d | ✓ |
| May | 21° | 16° | 7 mm | 1 d | ✓ |
| June | 22° | 17° | 1 mm | 0 d | |
| July | 24° | 19° | 2 mm | 0 d | ✓ |
| August | 25° | 20° | 0 mm | 0 d | ✓ |
| September | 25° | 19° | 3 mm | 0 d | ✓ |
| October | 24° | 16° | 13 mm | 2 d | ✓ |
| November | 22° | 13° | 20 mm | 3 d | |
| December | 19° | 10° | 42 mm | 4 d |
The four seasons in San Diego, in figures
What the 2015-2024 averages (San Diego (Lindbergh Field)) show, season by season, to compare at a glance instead of reading twelve rows of a table.
Spring
Mar → May19 to 21°
nights 13 to 16°
- 3 rainy days · 20 mm
Summer
Jun → Aug22 to 25°
nights 17 to 20°
- 0 rainy days · 1 mm
Autumn
Sep → Nov22 to 25°
nights 13 to 19°
- 2 rainy days · 12 mm
Book early for April to May and July to October
The timing is right, so it is right for everyone: in these months the best places to stay and the small-group tours go first. Here is where to start.
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Daylight in San Diego, month by month
The time between sunrise and sunset, from shortest to longest. Not to be confused with the sunshine hours in the table above, which count clear skies. In June there are 14h18 of daylight, in December 10h, a difference of 4h17.
10h13Jan
10h58Feb
11h53Mar
12h57Apr
13h50May
14h18Jun
14h06Jul
13h21Aug
12h19Sep
11h18Oct
10h25Nov
10hDec
Calculated for the latitude of the reference point "San Diego (Lindbergh Field)" (32.73°). Values on the 15th of each month, local solar time.
What to do in San Diego, month by month
| Activity | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Long days |
favourablewith compromisesunfavourable
Sightseeing & walks: good conditions all twelve months.
- Long days: June, July
Grid derived from the climate averages (temperature, rainfall), not from an opinion.
Travelling off-peak
Month by month, in detail
January
Not recommended19°10° at night
- 50 mm · 5 d
Low season, lower prices
February
Not recommended19°11° at night
- 56 mm · 5 d
Low season, lower prices
March
Fair19°13° at night
- 37 mm · 4 d
Low season, lower prices
April
Recommended20°14° at night
- 17 mm · 3 d
Busy, without the crush
May
Recommended21°16° at night
- 7 mm · 1 d
Busy, without the crush
June
Fair22°17° at night
- 1 mm · 0 d
Low season, lower prices
July
Recommended24°19° at night
- 2 mm · 0 d
High season, book early
August
Recommended25°20° at night
- 0 mm · 0 d
High season, book early
September
Recommended25°19° at night
- 3 mm · 0 d
Busy, without the crush
October
Recommended24°16° at night
- 13 mm · 2 d
Busy, without the crush
November
Fair22°13° at night
- 20 mm · 3 d
Low season, lower prices
December
Not recommended19°10° at night
- 42 mm · 4 d
Quiet, then the holidays
Read the twelve months in detail
January. Mild, 19 °C in the afternoon and 10 °C early in the morning. Rain stays light: 50 mm over 5 days. Low season: fewer people, lower prices.
February. Mild, 19 °C in the afternoon and 11 °C early in the morning. Rain stays light: 56 mm over 5 days. Low season: fewer people, lower prices.
March. Mild, 19 °C in the afternoon and 13 °C early in the morning. Rain stays light: 37 mm over 4 days. Low season: fewer people, lower prices.
April. Mild, 20 °C in the afternoon and 14 °C early in the morning. Hardly any rain (17 mm over 3 days). Busy season, without the crush.
May. Mild, 21 °C in the afternoon and 16 °C early in the morning. Hardly any rain (7 mm over 1 day). Busy season, without the crush.
June. Mild, 22 °C in the afternoon and 17 °C early in the morning. Hardly any rain (1 mm over 0 days). Low season: fewer people, lower prices.
July. Mild, 24 °C in the afternoon and 19 °C early in the morning. Hardly any rain (2 mm over 0 days). High season: book early.
August. 25 °C in the afternoon and 20 °C at night. Hardly any rain (0 mm over 0 days). High season: book early.
September. 25 °C in the afternoon and 19 °C at night. Hardly any rain (3 mm over 0 days). Busy season, without the crush.
October. Mild, 24 °C in the afternoon and 16 °C early in the morning. Hardly any rain (13 mm over 2 days). Busy season, without the crush.
November. Mild, 22 °C in the afternoon and 13 °C early in the morning. Hardly any rain (20 mm over 3 days). Low season: fewer people, lower prices.
December. Mild, 19 °C in the afternoon and 10 °C early in the morning. Rain stays light: 42 mm over 4 days. Quiet at the start of the month, then busier as the holidays approach.
Same season, other ideas
Their best time overlaps with this one: worth comparing before you book.
Frequently asked questions
When is the best time to visit San Diego?
April to May and July to October: over these months, average highs range from 20 to 25 °C, with 1 day of rain a month on average (2015-2024 averages, San Diego (Lindbergh Field)).
Which month should you avoid in San Diego?
February: it is the wettest of the months to avoid, with 56 mm over 5 days of rain on average over 2015-2024 at the reference point (San Diego (Lindbergh Field)).
What is the hottest month in San Diego?
August, with 25 °C on average in the afternoon and 20 °C at night. 2015-2024 averages (San Diego (Lindbergh Field)).
What is the coldest month in San Diego?
January, with 19 °C at best during the day and 10 °C at night. 2015-2024 averages (San Diego (Lindbergh Field)).
What is the driest month in San Diego?
August: 0 mm over 0 days of rain, against 56 mm in February, the wettest month.
Plan this trip
📒 The free printable San Diego guide: itinerary, map, where to sleep→
🧭 When to visit the American West: the country overview→
🗓️ Best time to visit: all our destinations→
Compare with other destinations
Photos: chensiyuan / CC BY-SA 4.0 (Wikimedia Commons) · An Errant Knight / CC BY-SA 4.0 (Wikimedia Commons) · Dllu / CC BY-SA 4.0 (Wikimedia Commons) · F ASTILY / CC BY-SA 4.0 (Wikimedia Commons) · Ctorbann / CC BY-SA 3.0 (Wikimedia Commons)