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What does the December traffic dip cost your website?

17 October 2026

In how long until 10,000 visitors and when a site pays for its hosting we assumed traffic grows smoothly every month. Real traffic does not: it has a season. This post asks what the quietest stretch of the year - for many South African sites, December - actually costs, and how to read it on your counter.

What a dip takes away

A dip takes a share of your normal visits for the months it lasts. The cost is normal visits x drop x months, priced at what each visit earns.

• The size of the drop is yours to measure. The calculator's 30% is an assumption - a business-to-business site can lose more in December, while a travel or gift site may go up.
• How long it lasts matters as much as how deep it is. A 15% drop over December and January costs the same as 30% in December alone.
• What each visit earns: $10 per 1,000 visits - 2 pages a visit at the $5 page RPM midpoint for travel, food and home (Aditude, 23 July 2025).
• Ad rates move with the season too, so your ad dashboard's own monthly figures beat one number for the year.

Work out what your dip costs

Type your visits in a normal month and the size of the drop from your counter, the month it starts, how long it lasts and what 1,000 visits earn you. The calculator shows the visits and earnings you lose a year, what it takes to make them up and how big the bounce-back will look - with a chart of the year.

Prefer a full page? Open the seasonal traffic dip calculator on CalcSA. To see whether your underlying growth is on track, the months to 10,000 visitors calculator works from your growth rate; the growth rate calculator turns two numbers a year apart into a rate.

Worked example: the calculator's defaults

A site with 5,000 visits in a normal month, 30% down in December only, earning $10 per 1,000 visits. Dollar earnings are converted at the European Central Bank reference rate the calculator stores (14 October 2026: $1 = R16.47).

• December brings 3,500 visits instead of 5,000 - 1,500 lost, 2.5% of a normal year's 60,000.
• The lost visits were worth about R250 ($15).
• December earns about R580, against R820 in a normal month.
• Making it up takes 137 more visits a month in each of the other 11 months - 2.7% above normal.
• January, back at 5,000, is 42.9% up on December - even though nothing has grown.

Four more cases, same defaults except the one shown:

• 30% down for December and January: 3,000 visits lost, 5% of the year, about R490.
• 50% down in December: 2,500 visits and about R410 lost - and January looks like 100% growth.
• 15% down for December and January: 1,500 visits and about R250 - the same as the default, spread thinner.
• A bigger site, 50,000 visits a month: 15,000 visits and about R2,470 lost - still 2.5% of its year.

Estimates. The 5,000 visits, 30% drop, December timing and $10 per 1,000 visits are assumptions, as in the calculator; your own counter shows your real dip. The exchange rate moves the rand result too: the live calculator uses the latest ECB rate, so its numbers may differ slightly from these.

A year of visits, with and without the dip

Same site, a normal year against a 30% December dip and a 15% dip over December and January:

• The dip is a notch, not a trend - the other eleven months are untouched.
• A month-on-month view turns that notch into a crash and then a boom: -30% in December, +43% in January.
• A year-on-year view shows neither, which is why it is the one to plan from.

Reading your counter for this

Your WebCounter counter keeps every month's visits, so last year's dip tells you what to expect this year. No counter yet? Get your free WebCounter counter - it takes a minute, and by next December you will have your own baseline.

• The size of the dip is last December's visits against November's on your WebCounter report: 3,500 after 5,000 is a 30% drop.
• How long it lasts is how many months sit below the months on either side - often December and the first half of January.
• Compare year on year: this December against last December tells you whether the site is growing, whatever the season.
• Plan around it: publish your best posts in October and November so they are ranking when traffic returns in January.

Sources

• Aditude, "RPM for Publishers" (23 July 2025) - $5 page RPM midpoint for travel, food and home. Not re-checked at the original on 17 October 2026; as cited in the CalcSA calculator.
• European Central Bank euro reference rates, 14 October 2026 (stored copy in the calculator) - $1 = R16.47.
• Calculator: CalcSA, Cost of a seasonal traffic dip.

Estimates only. The size and timing of a seasonal dip depend on your niche and your audience; your own counter's history beats any average.